diff --git "a/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/05-\350\256\276\345\244\207\347\256\241\347\220\206/index.html" "b/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/05-\350\256\276\345\244\207\347\256\241\347\220\206/index.html"
index 682a9227..928b2e25 100644
--- "a/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/05-\350\256\276\345\244\207\347\256\241\347\220\206/index.html"
+++ "b/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/05-\350\256\276\345\244\207\347\256\241\347\220\206/index.html"
@@ -528,6 +528,15 @@
+
+
+
+
+
+ 输入输出程序接口,设备驱动程序接口
+
+
+
@@ -1191,6 +1200,61 @@ I/O控制方式
I/O软件层次结构
+
+用户层软件
+一般是提供与 I/O 相关的库函数
+使用设备独立性软件向上提供的系统调用服务
+ex:print 会被翻译成 write 系统调用
+
+
+设备独立性软件
+又被称为设备无关性软件
+需要提供系统调用
+实现设备保护
+设备被看作特殊的文件,因此有访问权限
+差错处理(硬件故障)
+设备的分配与回收
+数据缓冲区管理
+建立逻辑设备名到物理设备名的映射,以及调用相关的驱动程序
+
+
+设备驱动程序
+由设备制造商提供
+中断处理软件
+I/O 应答中断
+硬件
+执行 I/O 操作
+
+输入输出程序接口,设备驱动程序接口
+
+输入输出程序接口
+ 在执行系统调用的时候,由于底层硬件的不同,需要提供不同的接口,比如硬盘支持序列但是键盘显然是不支持的,因此不可能提供一个单一的系统调用接口给上层用户
+
+字符设备接口
+
+块设备接口
+read/write 系统调用,seek修改读写指针位置
+
+
+网络设备接口
+网络套接字接口:socket接口.把套接字绑定到某个本地端口上
+
+
+
+
+概念:什么是阻塞/非阻塞 I/O
+
+阻塞 I/O:当一个进程发出一个 I/O 请求后,进程会一直等待直到 I/O 完成,比如从键盘读取字符
+非阻塞 I/O:当一个进程发出一个 I/O 请求后,系统调用会被迅速返回,进程无需阻塞等待,比如往磁盘写数据
+
+
+
+设备驱动程序接口
+
+!q驱动程序接口](img/image-23.png)
+
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diff --git "a/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/img/image-23.png" "b/Notebook/\346\223\215\344\275\234\347\263\273\347\273\237/img/image-23.png"
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diff --git "a/Notebook/\346\225\260\345\255\246\345\210\206\346\236\220/06-\344\270\215\345\256\232\347\247\257\345\210\206/index.html" "b/Notebook/\346\225\260\345\255\246\345\210\206\346\236\220/06-\344\270\215\345\256\232\347\247\257\345\210\206/index.html"
index 236f55dc..c67a8a05 100644
--- "a/Notebook/\346\225\260\345\255\246\345\210\206\346\236\220/06-\344\270\215\345\256\232\347\247\257\345\210\206/index.html"
+++ "b/Notebook/\346\225\260\345\255\246\345\210\206\346\236\220/06-\344\270\215\345\256\232\347\247\257\345\210\206/index.html"
@@ -606,6 +606,17 @@
+
+
+
+
+ 不定积分
+
+
+
+
+
+
@@ -616,6 +627,172 @@
+
+
+
+
+
+
+
+
+
+
+
+ Table of contents
+
+
+
+
+
@@ -955,9 +1132,87 @@
不定积分
+不定积分的概念和运算法则
+不定积分,微分的逆运算
+定义 6.1.1
+
+在某个区间上,函数\(F(x)\) 和\(f(x)\) 成立关系:\(F'(x)=f(x)\) ,或者等价的\(dF(x)=f(x)dx\) ,则称\(F(x)\) 是\(f(x)\) 的一个原函数
+
+定义 6.1.2
+
+一个函数\(f(x)\) 的原函数全体称为这个函数的不定积分,用\(\int f(x)dx\) 表示
+
+不定积分的线性性质
+定理 6.1.1
+
+若函数\(f(x)\) 和\(g(x)\) 都在区间\(I\) 上有原函数,则\(\forall k,l\in R\) ,函数\(kf+lg\) 的原函数也存在,并且:\(\int(kf(x)+lg(x))dx=k\int f(x)dx+l\int g(x)dx\)
+
+换元积分法和分部积分法
+换元积分法
+第一类换元积分法
+
+\(F(x)\) 是\(f(x)\) 的一个原函数,则\(\int f(\varphi(x))\varphi'(x)dx=F(\varphi(x))+C\)
+
+第二类换元积分法
+
+\(F(t)\) 是\(f(\varphi(t))\varphi'(t)\) 的一个原函数,且\(x = \varphi(t)\) ,则\(\int f(x)dx = \int f(\varphi(t))\varphi'(t)dt = F(\varphi^{-1}(x))+C\)
+
+分部积分法
+
+\(\int u(x)v'(x)dx = u(x)v(x) - \int u'(x)v(x)dx\)
+
+基本积分表
+\(\begin{aligned}
+ & \int x^\alpha \mathrm{d} x =
+ \begin{cases}
+ \frac{1}{\alpha+1} x^{\alpha+1}+C, & \alpha \neq -1, \\
+ \ln |x|+C, & \alpha=-1 ;
+ \end{cases}
+ & \int \ln x \mathrm{~d} x = x(\ln x-1)+C ; \\
+ & \int a^x \mathrm{~d} x = \frac{a^x}{\ln a}+C, \text{ 特别地 } \int \mathrm{e}^x \mathrm{~d} x = \mathrm{e}^x+C ;
+ & \int \sin x \mathrm{~d} x = -\cos x+C ; \\
+ & \int \cos x \mathrm{~d} x = \sin x+C \text{;}
+ & \int \tan x \mathrm{~d} x = -\ln |\cos x|+C ;\\
+ & \int \cot x \mathrm{~d} x = \ln |\sin x|+C \text{;}
+ & \int \sec x \mathrm{~d} x = \ln |\sec x+\tan x|+C ; \\
+ & \int \csc x \mathrm{~d} x = \ln |\csc x-\cot x|+C ;
+ & \int \operatorname{sh} x \mathrm{~d} x = \operatorname{ch} x+C ; \\
+ & \int \operatorname{ch} x \mathrm{~d} x = \operatorname{sh} x+C ;
+ & \int \frac{\mathrm{d} x}{\sqrt{a^2-x^2}} = \arcsin \frac{x}{a}+C ; \\
+ & \int \frac{\mathrm{d} x}{\sqrt{x^2 \pm a^2}} = \ln \left|x+\sqrt{x^2 \pm a^2}\right|+C ;
+ & \int \frac{\mathrm{d} x}{x^2-a^2} = \frac{1}{2 a} \ln \left|\frac{x-a}{x+a}\right|+C ; \\
+ & \int \frac{\mathrm{d} x}{x^2+a^2} = \frac{1}{a} \arctan \frac{x}{a}+C ;
+ & \int \sqrt{a^2-x^2} \mathrm{~d} x = \frac{1}{2} x \sqrt{a^2-x^2}+\frac{a^2}{2} \arcsin \frac{x}{a}+C ; \\
+ & \int \sqrt{x^2 \pm a^2} \mathrm{~d} x = \frac{1}{2}\left(x \sqrt{x^2 \pm a^2} \pm a^2 \ln \left|x+\sqrt{x^2 \pm a^2}\right|\right)+C .
+\end{aligned}\)
-函数
+一些证明:
+\(\int \sec(x)dx = \int \frac{1}{\cos(x)}dx = \int \frac{1}{\cos^2(x)}d\sin(x) \overset{t=\sin(x)}{=} \int \frac{1}{2}\ln(|\frac{t+1}{t-1}|) = \ln(|\frac{1+\sin(x)}{\cos(x)}|) = \ln(|\sec(x)+\tan(x)|) +C\)
+\(\int \frac{dx}{\sqrt{a^2-x^2}} = \int \frac{dx}{\sqrt{a^2(1-\frac{x^2}{a^2})}} = \int \frac{dx}{a\sqrt{1-(\frac{x}{a})^2}} \overset{t=\frac{x}{a}}{=} \int \frac{dt}{\sqrt{1-t^2}} = \arcsin(t)+C = \arcsin(\frac{x}{a}) + C\)
+\(\int\frac{dx}{\sqrt{x^2\pm a^2}} = \int\frac{dx}{\sqrt{a^2(1\pm\frac{x^2}{a^2})}} = \int\frac{dx}{a\sqrt{1\pm(\frac{x}{a})^2}} \overset{t=\frac{x}{a}}{=} \int\frac{dt}{\sqrt{1\pm t^2}} = \ln(|t+\sqrt{1+t^2}|) = \ln(|\frac{x}{a}+\sqrt{1+(\frac{x}{a})^2}|) + C = \ln(|x+\sqrt{x^2\pm a^2}|) + C\)
+
+\(\int\sqrt{a^2-x^2}dx\overset{x = a\cos(\theta)}{=} -\int |a^2\sin^2(\theta)d\theta = -a^2\int \frac{1-2\cos(2\theta)}{2}d\theta = -\frac{1}{2}a^2\theta+\frac{1}{2}\sin(\theta)\cos(\theta)+C = -\frac{1}{2}a^2\cos(\frac{x}{a})+\frac{1}{2}\frac{x}{a}\sin(\frac{x}{a}) + C= \frac{1}{2}x\sqrt{a^2-x^2}+\frac{a^2}{2}\arcsin(\frac{x}{a})+C\)
+
+
+\(\begin{aligned}
+& \sqrt{x^2-a^2}=a \tan t, \Rightarrow d x=a \sec t \tan t d t , \\
+& \int \sqrt{x^2-a^2} d x=a^2 \int \sec t \tan ^2 t d t=a^2 \int \sec t\left(\sec ^2 t-1\right) d t \\
+& =a^2 \int \sec ^3 t d t-a^2 \int \sec t d t \\
+& =a^2 \int \sec ^3 t d t-a^2 \ln |\sec t+\tan t|+C_1 \\
+& \int \sec ^3 t=\int \frac{d(\sin t)}{\left(1-\sin ^2 t\right)^2}=\frac{1}{4} \int\left(\frac{1}{1+\sin t}+\frac{1}{1-\sin t}\right)^2 d(\sin t) \\
+& =\frac{1}{4} \int \frac{d(1+\sin t)}{(1+\sin t)^2}-\frac{1}{4} \int \frac{d(1-\sin t)}{(1-\sin t)^2}+\frac{1}{2} \int \frac{d(\sin t)}{1-\sin ^2 t} \\
+& =\frac{1}{4}\left(\frac{1}{1-\sin t}-\frac{1}{1+\sin t}\right)+\frac{1}{4} \ln \left(\frac{1+\sin t}{1-\sin t}\right)+C_2 \\
+& =\frac{1}{2} \tan t \sec t+\frac{1}{2} \ln (\sec t+\tan t)+C_2 \\
+& \int \sqrt{x^2-a^2} d x=\frac{a^2}{2} \tan t \sec t+\frac{a^2}{2} \ln |\sec t+\tan t|-a^2 \ln |\sec t+\tan t|+C \\
+& =\frac{a^2}{2} \tan t \sec t-\frac{a^2}{2} \ln |\sec t+\tan t|+C \\
+& =\frac{x}{2} \sqrt{x^2-a^2}-\frac{a^2}{2} \ln \left|\frac{x}{a}+\frac{\sqrt{x^2-a^2}}{a}\right|+C
+\end{aligned}\)
+
+
+\(\int\sqrt{x^2+a^2}dx\) 同理
+
+有理函数的不定积分及其应用
diff --git "a/Notebook/\346\234\272\345\231\250\345\255\246\344\271\240/04-\345\244\232\345\217\230\351\207\217\347\272\277\346\200\247\345\233\236\345\275\222/index.html" "b/Notebook/\346\234\272\345\231\250\345\255\246\344\271\240/04-\345\244\232\345\217\230\351\207\217\347\272\277\346\200\247\345\233\236\345\275\222/index.html"
index 1589e2ac..beee5035 100644
--- "a/Notebook/\346\234\272\345\231\250\345\255\246\344\271\240/04-\345\244\232\345\217\230\351\207\217\347\272\277\346\200\247\345\233\236\345\275\222/index.html"
+++ "b/Notebook/\346\234\272\345\231\250\345\255\246\344\271\240/04-\345\244\232\345\217\230\351\207\217\347\272\277\346\200\247\345\233\236\345\275\222/index.html"
@@ -745,6 +745,24 @@
+
+
+
+
+
+ 特征缩放
+
+
+
+
+
+
+
+
+ 学习率
+
+
+
@@ -971,11 +989,24 @@ 多维特征
多变量梯度下降
-代价函数\(J(\theta_0,\theta_1,\cdots,\theta_n)=\frac{1}{2m}\sum_{i=1}^{m}(h_\theta(x^{(i)})-y^{(i)})^2\)
+代价函数\(J(\theta_0,\theta_1,\cdots,\theta_n)=\frac{1}{2m}\sum\limits_{i=1}^{m}(h_\theta(x^{(i)})-y^{(i)})^2\)
其中\(h_\theta= \theta^TX=\theta_0x_0+\theta_1x_1+\cdots+\theta_nx_n\)
算法:\(\theta_j =\theta_j-\alpha\frac{\partial}{\partial \theta_j}J(\Theta)\)
即:\(\theta_j = \theta_j-\alpha\frac{\partial}{\partial\theta_j}\frac{1}{2m}\sum\limits_{i=1}^m(h_\theta(x^{(i)})-y^{(i)})^2=\theta_j-\alpha\frac{1}{m}\sum\limits_{i=1}^m(h_\theta(x^{(i)})-y^{(i)})x_j^{(i)}\)
-
+
+特征缩放
+
+在面对多维的问题的时候,为了保证各个特征的游动权重相同,需要对特征进行缩放
+一般的可以取\(x_j = \frac{x_j-\mu_j}{s_j}\) ,其中\(\mu_j\) 是平均值,\(s_j\) 是标准差
+
+学习率
+
+
+学习率太大可能会无法收敛,学习率太小会导致收敛速度过慢
+
+
+画出\(J(\theta)\) 随着迭代次数的变化,可以帮助我们选择合适的学习率
+
diff --git "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/01-\347\272\277\346\200\247\346\226\271\347\250\213\347\273\204/index.html" "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/01-\347\272\277\346\200\247\346\226\271\347\250\213\347\273\204/index.html"
index e7c5a08e..0891bbc3 100644
--- "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/01-\347\272\277\346\200\247\346\226\271\347\250\213\347\273\204/index.html"
+++ "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/01-\347\272\277\346\200\247\346\226\271\347\250\213\347\273\204/index.html"
@@ -948,6 +948,27 @@
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+ n维度量线性空间
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diff --git "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/02-\350\241\214\345\210\227\345\274\217/index.html" "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/02-\350\241\214\345\210\227\345\274\217/index.html"
index c7c546ce..5f990ae2 100644
--- "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/02-\350\241\214\345\210\227\345\274\217/index.html"
+++ "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/02-\350\241\214\345\210\227\345\274\217/index.html"
@@ -18,7 +18,7 @@
-
+
@@ -970,6 +970,72 @@
+
+
+
+
+
+ 2.5 Cramer 法则
+
+
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+
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+ 2.6 行列式按 k 行展开
+
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+ n维度量线性空间
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@@ -1123,6 +1210,33 @@ Vandermoode 行列式
\(\begin{vmatrix}1 & 1 & \cdots & 1\\ x_1 & x_2 & \cdots & x_n \\\vdots & \vdots & \cdots & \vdots \\x_1^{n-1} & x_2^{n-1} & \cdots & x_n^{n-1} \end{vmatrix}=\prod\limits_{1\leq i<j\leq n}(x_j-x_i)\)
+2.5 Cramer 法则
+定理 1
+
+数域\(K\) 上的\(n\) 个方程\(n\) 个未知数的线性方程组\(AX=B\) 有唯一解的充要条件是\(\det(A)\neq 0\)
+推论 1:\(n\) 元齐次线性方程组有非零解的充要条件是\(\det(A)=0\) ,只有零解的充要条件是\(\det(A)\neq 0\)
+
+定理 2
+
+\(AX=B\) 的解\(x_i=\frac{\det(A_i)}{\det(A)}\) ,其中\(A_i\) 是\(A\) 的第\(i\) 列元素换成\(B\) 的元素后得到的矩阵
+定理 1的充分性和定理 2 合起来称为 Cramer 法则
+
+2.6 行列式按 k 行展开
+定义 1
+
+\(n\) 级矩阵\(A\) 中任取\(k\) 行,\(k\) 列,位于这些行和列的交点处的\(k^2\) 个元素按原来的排列方法构成\(A\) 的一个\(k\) 级子式,记作\(A\left(\begin{matrix}
+ i_1i_2\cdots i_k\\
+ j_1j_2\cdots j_k
+\end{matrix}\right)\) ,划去这\(k\) 行\(k\) 列后得到的\(n-k\) 级矩阵的行列式称为其余子式,在余子式前面乘以\((-1)^{i_1+i_2+\cdots+i_k+j_1+\cdots+j_k }\) 得到代数余子式,记作\(A\left(\begin{matrix}
+ i'_1i'_2\cdots i'_{n-k}\\
+ j'_1j'_2\cdots j'_{n-k}
+\end{matrix}\right)\) ,其中\((i'_1i'_2\cdots i'_{n-k})=(1,2,\cdots,n)-(i_1i_2\cdots i_k)\) ,\((j'_1j'_2\cdots j'_{n-k})=(1,2,\cdots,n)-(j_1j_2\cdots j_k)\)
+
+定理 1(Laplace定理)
+
+在\(n\) 阶矩阵\(A\) 中取定\(i_1,i_2,\cdots,i_k\) 行,则这\(k\) 行元素形成的所有\(k\) 阶子式与它们的代数余子式之和等于\(\det(A)\)
+推论:分块矩阵行列式\(\begin{vmatrix}A & B\\ 0 & C\end{vmatrix}=\det(A)\det(C)\)
+
diff --git "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/03-\347\272\277\346\200\247\347\251\272\351\227\264/index.html" "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/03-\347\272\277\346\200\247\347\251\272\351\227\264/index.html"
new file mode 100644
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+++ "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/03-\347\272\277\346\200\247\347\251\272\351\227\264/index.html"
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+ n维度量线性空间 - 𝓛𝓳𝔁'𝓟𝓪𝓰𝓮
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+n维度量线性空间
+
+向量空间\(K^n\) :
+数域\(K\) ,\(n\in N^*\) ,令\(K^n=\{(x_1,x_2,\cdots,x_n)|x_i\in K,i=1,2,\cdots,n\}\) ,称为\(n\) 维向量空间
+在\(K^n\) 中定义加法和数乘运算
+加法:\((x_1,x_2,\cdots,x_n)+(y_1,y_2,\cdots,y_n)=(x_1+y_1,x_2+y_2,\cdots,x_n+y_n)\)
+数乘:\(k(x_1,x_2,\cdots,x_n)=(kx_1,kx_2,\cdots,kx_n)\)
+
+
+运算法则
+加法交换律:\(\alpha+\beta=\beta+\alpha\)
+加法结合律:\((\alpha+\beta)+\gamma=\alpha+(\beta+\gamma)\)
+加法单位元:\(\exists 0\in K^n,\forall \alpha\in K^n,\alpha+0=\alpha\)
+加法逆元:\(\forall \alpha\in K^n,\exists -\alpha\in K^n,\alpha+(-\alpha)=0\)
+乘法单位元:\(1\alpha=\alpha\)
+数乘结合律:\((kl)\alpha=k(l\alpha)\)
+数乘分配律:\(k(\alpha+\beta)=k\alpha+k\beta\)
+数乘分配律:\((k+l)\alpha=k\alpha+l\alpha\)
+
+
+
+以上定义的有度量的线性空间实际上是基于数的,数的加法和数乘就是按通常所认为的定义的,但是实际上线性空间中的元素不一定是数,以下给出最基本的定义:
+
+映射:设\(X\) 和\(Y\) 是两个集合,如果存在一个规则\(f\) ,使得对于\(X\) 中的每一个元素\(x\) ,都有唯一的元素\(y\) 与之对应,则称\(f\) 是从\(X\) 到\(Y\) 的映射,记作\(f:X\to Y\)
+单射:如果对于\(X\) 中的每一个元素\(x\) ,都有唯一的元素\(y\) 与之对应,则称\(f\) 是从\(X\) 到\(Y\) 的单射
+满射:如果对于\(Y\) 中的每一个元素\(y\) ,都有唯一的元素\(x\) 与之对应,则称\(f\) 是从\(X\) 到\(Y\) 的满射
+双射:如果\(f\) 是单射和满射,则称\(f\) 是从\(X\) 到\(Y\) 的双射
+定义 1 : 非空集合\(S\) 上的一个代数运算是指\(S\times S\to S\) 的一个代数运算
+
+
+
+线性空间 :设\(V\) 是一个非空集合,\(K\) 是一个数域,如果在\(V\) 上有一个称为加法的运算\(\(V\times V\to V:(\alpha,\beta)\to \alpha+\beta\) ,\) K,V\(之间有一个称为数乘的运算:\) K\times V\to V:(k,\alpha)\to k\alpha$,并且满足以下八条运算法则:
+
+加法交换律:\(\alpha+\beta=\beta+\alpha\)
+加法结合律:\((\alpha+\beta)+\gamma=\alpha+(\beta+\gamma)\)
+加法单位元:\(\exists \vec{0}\in V,\forall \alpha\in V,\alpha+\vec{0}=\alpha\)
+加法逆元:\(\forall \alpha\in V,\exists -\alpha\in V,s.t.\;\alpha+(-\alpha)=\vec{0}\)
+乘法单位元:\(1\alpha=\alpha\)
+数乘结合律:\((kl)\alpha=k(l\alpha)\)
+数乘分配律:\(k(\alpha+\beta)=k\alpha+k\beta\)
+数乘分配律:\((k+l)\alpha=k\alpha+l\alpha\)
+ 那么\(V\) 称为数域\(K\) 上的线性空间,简称线性空间(注意加法单位元取自于\(V\) ,乘法单位元取自于\(K\) )
+
+n 维向量空间
+定义 1
+
+如上定义,线性空间是一个集合,在这个集合中有两种运算,一种是加法,一种是数乘,这两种运算满足八条运算法则,这个集合就是线性空间
+
+ex:线性空间的例子
+
+几何空间\(R^3\) :以\(O\) 为起点的向量
+\(K^n=\{(x_1,x_2,\cdots,x_n)|x_i\in K,i=1,2,\cdots,n\}\)
+非空集合\(X\) 到实数集\(R\) 上的所有实值函数的集合构成线性空间:
+\(f,g\in X\to R\) ,定义加法和数乘运算如下:
+\((f+g)(x)=f(x)+g(x)\)
+\((kf)(x)=kf(x)\)
+
+
+且定义\(0\) 元为\(0(x)=0\)
+乘法单位元为\(1(x)=1\)
+那么\(X\) 是数域\(R\) 上的一个线性空间
+
+
+
+线性空间的性质
+
+\(V\) 是数域\(K\) 上的线性空间,则:
+加法单位元唯一
+
+每个\(\alpha\in V\) 的负元唯一
+\(0\alpha=\vec{0},\forall \alpha\in V\)
+\(k\vec{0}=\vec{0},\forall k\in K\)
+若\(k\alpha=\vec{0}\) ,则\(k=0\) 或\(\alpha=\vec{0}\)
+\((-1)\alpha=-\alpha\)
+
+线性子空间
+定义 1
+
+设\(V\) 是数域\(K\) 上的线性空间,\(U\subset V\) ,如果\(U\) 对于\(V\) 中定义的加法和数乘也构成线性空间,则称\(U\) 是\(V\) 的线性子空间,简称子空间
+ex:过原点的平面是\(R^3\) 的子空间,不过不过原点的平面不是\(R^3\) 的子空间
+
+定理 1
+
+\(U\) 是数域\(K\) 上的线性空间\(V\) 的子空间\(\iff U\) 对于\(V\) 中定义的加法和数乘封闭
+只需要证明对于加法和数乘封闭即可证明一个子空间是线性空间
+
+线性组合
+
+记\(W=\{k_1\alpha_1+k_2\alpha_2+\cdots+k_n\alpha_s|k_i\in K,\alpha_i\in V,i=1,2,\cdots,s\}\) ,称\(W\) 是向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 的线性组合,则\(W\) 是\(V\) 的子空间,称为由向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 生成的子空间,记作\(W=Span(\alpha_1,\alpha_2,\cdots,\alpha_s)\) 或者\(<\alpha_1,\alpha_2,\cdots,\alpha_s>\)
+
+线性表出
+
+\(\beta\in W\iff\exists k_1,k_2,\cdots,k_s\in K,s.t.\;\beta=k_1\alpha_1+k_2\alpha_2+\cdots+k_n\alpha_s\) 称\(\beta\) 可以由向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 线性表出
+
+数域\(K\) 上的\(n\) 元线性方程组
+
+记\(\alpha_i=(a_{1i},a_{2i},\cdots,a_{ni})^T,i=1,2,\cdots,n,\beta=(b_1,b_2,\cdots,b_n)^T\) ,则线性方程组\(x_1\alpha_1+x_2\alpha_2+\cdots+x_n\alpha_n=\beta\) 有解\(\iff \beta\) 可以由向量组\(\alpha_1,\alpha_2,\cdots,\alpha_n\) 线性表出\(\iff\beta\in Span(\alpha_1,\alpha_2,\cdots,\alpha_n)\)
+因此我们研究\(Span(\alpha)\) 的结构
+
+共线
+
+向量\(\alpha,\beta\) 共线\(\iff\exists,k,l\in R.k,l\text{不全为}0,s.t.\;k\alpha+l\beta=\vec{0}\)
+向量\(\alpha,\beta\) 不共线:\(k\alpha+l\beta=\vec{0}\iff k,l=0\)
+
+定义 1
+
+线性相关:对于数域\(K\) 上的线性空间\(V\) 中的向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) ,如果存在\(K\) 中不全为0 的实数\(k_1,k_2,\cdots,k_s,s.t.\;k_1\alpha_1+\cdots+k_s\alpha_s=0\) ,那么称向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 线性相关
+线性无关:如果\(k_1\alpha_1+\cdots+k_s\alpha_s=0\Rightarrow k_1=k_2=\cdots=k_s=0\) ,那么称向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 线性无关
+
+定理 2
+
+齐次线性方程组:\(x_1\alpha_1+x_2\alpha_2+\cdots+x_n\alpha_n=0\) 有非零解\(\iff\alpha_1,\alpha_2,\cdots,\alpha_n\) 线性相关
+只有零解\(\iff\alpha_1,\alpha_2,\cdots,\alpha_n\) 线性无关
+
+线性相关和线性无关的向量组
+用\(\alpha\) 表示向量组\(\alpha_1,\alpha_2,\cdots,\alpha_n\) ,一些明显的记号就不定义了,比如\(\alpha-\alpha_1\) 就是\(\alpha\) 去掉\(\alpha_1\) 的向量组
+
+\(\alpha_0\) 线性相关\(\iff\alpha_0 = \vec{0}\)
+向量组的部分组如果线性相关,则整个向量组线性相关
+向量组线性无关,那么任一部分组都是线性无关的(上一点的逆否命题)
+含有零向量的向量组线性相关
+向量组线性相关\(\iff\exists\alpha_i\in\alpha,s.t.\;\alpha_i\in Span(\alpha-\alpha_i)\)
+
+命题 1
+
+设\(\beta\in Span(\alpha)\) ,且表出方式唯一,则\(\alpha\) 线性无关
+
+命题 2
+
+若\(\alpha\) 线性无关,但是\(\alpha,\beta\) 线性相关,那么\(\beta\in Span(\alpha)\)
+
+极大线性无关组,向量组的秩
+
+
+向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 中的向量组\(\alpha_{i_1},\alpha_{i_2},\cdots,\alpha_{i_r}\) 称为原向量组的 一个 极大线性无关组,如果\(\alpha_{i_1},\alpha_{i_2},\cdots,\alpha_{i_r}\) 线性无关,但是从其余向量(如果有)中任取一个添进来得到的新的部分组都是线性相关的
+
+
+\(span(\alpha_{i_1},\alpha_{i_2},\cdots,\alpha_{i_r})=span(\alpha_1,\alpha_2,\cdots,\alpha_s)\) 换句话说,原向量组的极大线性无关组和原向量组生成的子空间是相等的
+
+从而原向量组的任何一个极大线性无关组都是等价的
+线性表出是一个等价关系:满足反身性,对称性,传递性
+
+命题 1
+
+设向量组\(\beta_1,\beta_2,\cdots,\beta_r\) ,可以由\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 线性表出并且有\(r>s\) ,则\(\beta_1,\beta_2,\cdots,\beta_r\) 一定线性相关
+
+推论 1
+
+设向量组\(\beta_1,\beta_2,\cdots,\beta_r\) ,可以由\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 线性表出,如果\(\beta_1,\beta_2,\cdots,\beta_r\) 线性无关,则\(r\leq s\) (逆否命题)
+
+推论 2
+
+推论 3
+
+向量组的所有极大线性无关组所含的向量个数相等
+
+定义 1
+
+向量组\(\alpha_1,\alpha_2,\cdots,\alpha_s\) 的极大线性无关组所含向量个数称为向量组的秩,记作$rank(\alpha)=rank{\alpha_1,\cdots,\alpha_s} $,只有零向量的向量组的秩为0
+
+命题 2
+
+向量组线性无关的充要条件是向量组的秩等于向量组的向量个数
+
+命题 3
+
+如果向量组\(\alpha\) 可以由向量组\(\beta\) 线性表出\(\iff rank(\alpha)\leq rank(\beta)\)
+
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+ Back to top
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diff --git "a/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/index.html" "b/Notebook/\351\253\230\347\255\211\344\273\243\346\225\260/index.html"
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@@ -795,6 +795,27 @@
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+ n维度量线性空间
+
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diff --git a/Tools/index.html b/Tools/index.html
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+++ b/Tools/index.html
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-
+
diff --git a/search/search_index.json b/search/search_index.json
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@@ -1 +1 @@
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2.\u63d0\u4f9b\u63a5\u53e3\u548c\u73af\u5883
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"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_40","title":"\u8fdb\u7a0b\u540c\u6b65\u8fdb\u7a0b\u4e92\u65a5","text":"\u4e00\u6b21\u4ec5\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528\u7684\u8d44\u6e90\u79f0\u4e3a\u4e34\u754c\u8d44\u6e90\n
while(ture){\n entry section;//\u8fdb\u5165\u533a<\u68c0\u67e5\u662f\u5426\u80fd\u8fdb\u5165>\n critical section; //\u4e34\u754c\u533a<\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u4ee3\u7801,\u53c8\u79f0\u4e3a\u4e34\u754c\u6bb5>\n exit section; //\u9000\u51fa\u533a<\u5c06\u6b63\u5728\u8bbf\u95ee\u7684\u6807\u5fd7\u6e05\u9664>\n remainder section; //\u5269\u4f59\u533a\n}\n
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_41","title":"\u8fdb\u7a0b\u4e92\u65a5\u7684\u8f6f\u4ef6\u5b9e\u73b0\u65b9\u6cd5","text":"\u8bbe\u7f6e\u4e00\u4e2a\u516c\u7528\u7684\u6574\u578b\u53d8\u91cf turn,\u6307\u5411\u5141\u8bb8\u8fdb\u5165\u4e34\u754c\u533a\u7684\u7f16\u53f7 \u53ef\u4ee5\u5b9e\u73b0\u6bcf\u6b21\u53ea\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u8fdb\u5165\u4e34\u754c\u533a,\u4f46\u662f\u4e24\u4e2a\u7a0b\u5e8f\u6bd4\u5982\u4ea4\u66ff\u8fdb\u5165\u4e34\u754c\u533a,\u5982\u679c\u67d0\u4e2a\u7a0b\u5e8f\u4e0d\u6253\u7b97\u8fdb\u5165\u4e34\u754c\u533a,\u90a3\u4e48\u53e6\u4e00\u4e2a\u4e5f\u5c31\u4e0d\u80fd\u518d\u8fdb\u5165\u4e34\u754c\u533a,\u8fdd\u80cc\u4e86<\u7a7a\u95f2\u8ba9\u8fdb>\u7684\u539f\u5219
\u8bbe\u7f6e\u5e03\u5c14\u578b\u6570\u7ec4 flag[2] \u6807\u8bb0\u53cc\u65b9\u8fdb\u5165\u7684\u610f\u613f,\u8fdb\u5165\u4e34\u754c\u533a\u4e4b\u524d\u5148\u68c0\u67e5\u5bf9\u65b9\u662f\u5426\u60f3\u8fdb\u5165,\u5982\u679c\u662f\u5c31\u5faa\u73af\u68c0\u67e5\u5e76\u7b49\u5f85,\u4e0d\u662f\u5219\u7f6e\u81ea\u5df1\u7684 flag \u4e3a true,\u7136\u540e\u8bbf\u95ee\u4e34\u754c\u533a,\u9000\u51fa\u7684\u65f6\u5019\u518d\u7f6e\u81ea\u5df1\u7684 flag \u4e3a false
\u8fd9\u79cd\u505a\u6cd5\u4e0d\u9700\u8981\u8fdb\u7a0b\u4ea4\u66ff\u8fdb\u5165,\u53ef\u4ee5\u8fde\u7eed\u4f7f\u7528,\u4f46\u662f\u4e24\u4e2a\u8fdb\u7a0b\u53ef\u80fd\u540c\u65f6\u8bbf\u95ee\u4e34\u754c\u533a,\u539f\u56e0\u5728\u4e8e\u68c0\u67e5\u5bf9\u65b9\u6807\u5fd7\u540e\u5230\u5207\u6362\u81ea\u5df1\u6807\u5fd7\u4e2d\u53ef\u80fd\u53d1\u751f\u8fdb\u7a0b\u5207\u6362,\u5bfc\u81f4\u53cc\u65b9\u90fd\u68c0\u67e5\u901a\u8fc7,\u8fdd\u80cc<\u5fd9\u7740\u7b49\u5f85>\u539f\u5219
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\u5148\u8bbe\u7f6e\u81ea\u5df1\u7684\u6807\u5fd7\u518d\u68c0\u67e5\u5bf9\u65b9 \u95ee\u9898\u5728\u4e8e\u5982\u679c\u5728\u8bbe\u7f6e\u81ea\u5df1\u6807\u5fd7\u548c\u68c0\u67e5\u5bf9\u65b9\u7684\u65f6\u5019\u53d1\u751f\u4e86\u8fdb\u7a0b\u5207\u6362,\u90a3\u4e48\u4e24\u4e2a\u7a0b\u5e8f\u90fd\u65e0\u6cd5\u8fdb\u5165\u4e34\u754c\u533a,\u8fdd\u80cc\u4e86<\u7a7a\u95f2\u8ba9\u8fdb>\u7684\u539f\u5219, \u6b64\u5916\u4e24\u4e2a\u8fdb\u7a0b\u957f\u671f\u5f97\u4e0d\u5230\u8bbf\u95ee\u5bfc\u81f4\u9965\u997f,\u8fdd\u80cc\u4e86<\u6709\u9650\u7b49\u5f85>\u539f\u5219
\u7ed3\u5408\u7b97\u6cd5 1,3.\u5229\u7528 flag \u89e3\u51b3\u4e92\u65a5\u95ee\u9898,turn \u89e3\u51b3\u9965\u997f\u95ee\u9898.
\u8fdb\u5165\u4e4b\u524d\u5c06\u81ea\u5df1\u7684 flag \u7f6e true \u7136\u540e turn \u8bbe\u7f6e\u4e3a\u5bf9\u65b9,\u5982\u679c turn \u662f\u5bf9\u65b9\u4e14\u5bf9\u65b9\u60f3\u8fdb\u5c31\u7b49\u5f85,\u5426\u5219\u8fdb\u5165,\u5b8c\u6210\u540e\u7f6e flag \u4e3a false \u552f\u4e00\u7f3a\u70b9\u662f\u6ca1\u6709\u9075\u5faa<\u8ba9\u6743\u7b49\u5f85>
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_42","title":"\u603b\u7ed3","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_43","title":"\u8fdb\u7a0b\u4e92\u65a5\u7684\u786c\u4ef6\u5b9e\u73b0\u65b9\u6cd5","text":"\u4e2d\u65ad\u5c4f\u853d\u65b9\u6cd5
TestAndSet \u6307\u4ee4
Swap\u6307\u4ee4
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"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_23","title":"\u5feb\u8868\u80fd\u63d0\u9ad8\u6548\u7387\u7684\u539f\u56e0","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_24","title":"\u603b\u7ed3","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_25","title":"\u9875\u5f0f\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_26","title":"\u6bb5\u9875\u5f0f\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_27","title":"\u865a\u62df\u5185\u5b58","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_28","title":"\u5c40\u90e8\u6027\u539f\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_29","title":"\u8bf7\u6c42\u5206\u9875\u7ba1\u7406\u65b9\u5f0f","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_30","title":"\u9875\u8868\u53d8\u5316","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_31","title":"\u7f3a\u9875\u4e2d\u65ad","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_32","title":"\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5","text":"\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5(OPT,Optimal):\u6bcf\u6b21\u9009\u62e9\u6dd8\u6c70\u7684\u9875\u9762\u5c06\u662f\u4ee5\u540e\u6c38\u4e0d\u4f7f\u7528\uff0c\u6216\u8005\u5728\u6700\u957f\u65f6\u95f4\u5185\u4e0d\u518d\u88ab \u8bbf\u95ee\u7684\u9875\u9762\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u6700\u4f4e\u7684\u7f3a\u9875\u7387\u3002
\u5148\u8fdb\u5148\u51fa\u7f6e\u6362\u7b97\u6cd5(FIFO):\u6bcf\u6b21\u9009\u62e9\u7684\u6dd8\u6c70\u9875\u9762\u662f\u6700\u65e9\u8fdb\u5165\u5185\u5b58\u7684\u9875\u9762
\u6700\u8fd1\u6700\u4e45\u672a\u4f7f\u7528\u7f6e\u6362\u7b97\u6cd5(LRU,least recently used):\u6bcf\u6b21\u6dd8\u6c70\u7684\u9875\u9762\u662f\u6700\u8fd1\u6700\u4e45\u672a\u4f7f\u7528\u7684\u9875\u9762
\u65f6\u949f\u7f6e\u6362\u7b97\u6cd5\u662f\u4e00\u79cd\u6027\u80fd\u548c\u5f00\u9500\u8f83\u5747\u8861\u7684\u7b97\u6cd5\uff0c\u53c8\u79f0CLOCK\u7b97\u6cd5\uff0c\u6216\u6700\u8fd1\u672a\u7528\u7b97\u6cd5(NRU,Not Recently Used)
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_33","title":"\u9875\u9762\u5206\u914d\u7b56\u7565","text":"\u9a7b\u7559\u96c6:\u8bf7\u6c42\u5206\u9875\u7ba1\u7406\u4e2d\u7ed9\u8fdb\u7a0b\u5206\u914d\u7684\u7269\u7406\u5757\u7684\u96c6\u5408
\u5de5\u4f5c\u96c6:\u67d0\u6bb5\u65f6\u95f4\u5185,\u8fdb\u7a0b\u5b9e\u9645\u8bbf\u95ee\u7684\u9875\u9762\u7684\u96c6\u5408
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_34","title":"\u5185\u5b58\u6620\u5c04\u6587\u4ef6","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/","title":"\u6587\u4ef6\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_2","title":"\u6587\u4ef6\u7684\u5c5e\u6027","text":" \u6587\u4ef6\u540d:\u7528\u6237\u6700\u76f4\u89c2\u7684\u611f\u77e5 \u6807\u8bc6\u7b26:\u64cd\u4f5c\u7cfb\u7edf\u5185\u90e8\u7528\u4e8e\u533a\u5206\u5404\u4e2a\u6587\u4ef6\u7684\u6807\u5fd7,\u5bf9\u7528\u6237\u6ca1\u6709\u53ef\u8bfb\u6027 \u7c7b\u578b:txt,py.. \u4f4d\u7f6e,\u5927\u5c0f,\u521b\u5efa\u8005\u7b49\u7b49
\u6587\u4ef6\u5185\u90e8\u6570\u636e\u7ec4\u7ec7\u5f62\u5f0f
\u6d41\u5f0f\u6587\u4ef6:\u65e0\u7ed3\u6784\u6587\u4ef6,\u7531\u4e8c\u8fdb\u5236\u5b57\u7b26\u6d41\u7ec4\u6210,\u5982 txt \u6587\u4ef6
\u8bb0\u5f55\u5f0f\u6587\u4ef6:\u6709\u7ed3\u6784\u6587\u4ef6.\u5982xlsx\u6587\u4ef6
\u6587\u4ef6\u4e4b\u95f4\u7684\u903b\u8f91\u7ed3\u6784? \u64cd\u4f5c\u7cfb\u7edf\u5411\u4e0a\u63d0\u4f9b\u6587\u4ef6\u7684\u6700\u57fa\u672c\u529f\u80fd
\u521b\u5efa\u6587\u4ef6:creat \u7cfb\u7edf\u8c03\u7528 \u5220\u9664\u6587\u4ef6:delete \u7cfb\u7edf\u8c03\u7528 \u6253\u5f00\u6587\u4ef6:open \u7cfb\u7edf\u8c03\u7528 \u5173\u95ed\u6587\u4ef6:close \u7cfb\u7edf\u8c03\u7528 \u8bfb\u6587\u4ef6:read \u7cfb\u7edf\u8c03\u7528 \u5199\u6587\u4ef6:write \u7cfb\u7edf\u8c03\u7528 \u5916\u5b58\u4e2d\u6587\u4ef6\u7684\u7ec4\u7ec7\u5f62\u5f0f
\u7c7b\u4f3c\u4e8e\u5185\u5b58\u5206\u4e3a\u4e00\u4e2a\u4e2a\u201c\u5185\u5b58\u5757\u201d\uff0c\u5916\u5b58\u4f1a\u5206\u4e3a\u4e00\u4e2a\u4e2a\u201c\u5757/\u78c1\u76d8\u5757/\u7269\u7406\u5757\u201d\u3002 \u6bcf\u4e2a\u78c1\u76d8\u5757\u7684\u5927\u5c0f\u662f\u76f8\u7b49\u7684\uff0c\u6bcf\u5757\u4e00\u822c\u5305\u542b2\u7684\u6574\u6570\u5e42\u4e2a\u5730\u5740 \u540c\u6837\u7c7b\u4f3c\u7684\u662f\uff0c\u6587\u4ef6\u7684\u903b\u8f91\u5730 \u5740\u4e5f\u53ef\u4ee5\u5206\u4e3a(\u903b\u8f91\u5757\u53f7\uff0c\u5757\u5185\u5730\u5740) \u64cd\u4f5c\u7cfb\u7edf\u540c\u6837\u9700\u8981\u5c06\u903b\u8f91\u5730\u5740\u8f6c \u6362\u4e3a\u5916\u5b58\u7684\u7269\u7406\u5730\u5740(\u7269\u7406\u5757\u53f7\uff0c\u5757\u5185\u5730\u5740)\u7684\u5f62\u5f0f\u3002 \u5757\u5185\u5730\u5740\u7684\u4f4d\u6570\u53d6\u51b3\u4e8e\u78c1\u76d8\u5757\u7684\u5927\u5c0f
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_3","title":"\u6587\u4ef6\u7684\u903b\u8f91\u7ed3\u6784","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_4","title":"\u6587\u4ef6\u76ee\u5f55","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_5","title":"\u6587\u4ef6\u7684\u7269\u7406\u7ed3\u6784","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_6","title":"\u903b\u8f91\u7ed3\u6784&\u7269\u7406\u7ed3\u6784","text":" \u5b9e\u9645\u4e0a\u5c31\u662f\u64cd\u4f5c\u7cfb\u7edf\u5b58\u50a8\u4fe1\u606f\u7684\u65f6\u5019\u53ef\u80fd\u4f1a\u91c7\u7528\u94fe\u5f0f\u5b58\u50a8\u6216\u8005\u987a\u5e8f\u5b58\u50a8\u4e4b\u7c7b\u7684\u5b58\u50a8\u65b9\u5f0f,\u4ee3\u7801\u4e2d\u903b\u8f91\u4e0a\u76f8\u90bb\u7684\u6570\u636e\u4e0d\u4e00\u5b9a\u4f1a\u76f8\u90bb,\u4e0d\u76f8\u90bb\u7684\u6570\u636e\u4e5f\u4e0d\u4e00\u5b9a\u76f8\u90bb\u6216\u8005\u4e0d\u76f8\u90bb,\u8fd9\u53d6\u51b3\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7684\u5b58\u50a8\u7ba1\u7406\u65b9\u5f0f "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_7","title":"\u6587\u4ef6\u5b58\u50a8\u7a7a\u95f4\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_8","title":"\u6587\u4ef6\u7684\u57fa\u7840\u64cd\u4f5c","text":"\u901a\u8fc7\u76ee\u5f55\u5757\u64cd\u4f5c\n
\u521b\u5efa\u6587\u4ef6: \u8c03\u7528 creat \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u6587\u4ef6\u5927\u5c0f,\u6587\u4ef6\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d \u5220\u9664\u6587\u4ef6: delete \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d \u6253\u5f00\u6587\u4ef6: open \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d,\u6587\u4ef6\u64cd\u4f5c(w \u5199,r \u8bfb\u4e4b\u7c7b) \u6d89\u53ca\u6743\u9650\u68c0\u67e5 \u5173\u95ed\u6587\u4ef6 close \u7cfb\u7edf\u8c03\u7528 \u5c06\u6253\u5f00\u6587\u4ef6\u8868\u76f8\u5173\u7684\u90e8\u5206\u5220\u9664,\u56de\u6536\u8d44\u6e90,\u6253\u5f00\u8ba1\u6570\u5668-1 \u8bfb\u6587\u4ef6: read \u7cfb\u7edf\u8c03\u7528 \u6307\u660e\u8bfb\u6587\u4ef6\u7684\u540d\u79f0,\u8bfb\u53d6\u7684\u5b57\u8282\u6570,\u8bfb\u53d6\u7684\u4f4d\u7f6e \u5199\u6587\u4ef6: write \u7cfb\u7edf\u8c03\u7528 \u6307\u660e\u5199\u6587\u4ef6,\u5199\u5165\u7684\u5b57\u8282\u6570,\u5199\u5165\u7684\u4f4d\u7f6e(\u5916\u5b58) "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_9","title":"\u6587\u4ef6\u5171\u4eab","text":" \u786c\u94fe\u63a5: \u8f6f\u94fe\u63a5 "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_10","title":"\u6587\u4ef6\u4fdd\u62a4","text":" \u53e3\u4ee4\u4fdd\u62a4 \u4e3a\u6587\u4ef6\u8bbe\u7f6e\u53e3\u4ee4,\u5176\u4ed6\u7528\u6237\u8bbf\u95ee\u65f6\u9700\u8981\u8f93\u5165\u53e3\u4ee4
\u4fdd\u5b58\u53e3\u4ee4\u7684\u5f00\u9500\u548c\u9a8c\u8bc1\u7684\u5f00\u9500\u90fd\u5c0f \u7f3a\u70b9\u662f\u53e3\u4ee4\u5b58\u653e\u5728\u7cfb\u7edf\u5185\u90e8,\u4e0d\u591f\u5b89\u5168 \u52a0\u5bc6\u4fdd\u62a4
\u7528\u5bc6\u7801(\u52a0\u5bc6\u65b9\u5f0f,\u5982\u5f02\u6216\u8fd0\u7b97)\u5bf9\u6587\u4ef6\u52a0\u5bc6(\u64cd\u4f5c\u7cfb\u7edf\u4fdd\u5b58\u4e86\u52a0\u5bc6\u6570\u636e\u800c\u4e0d\u662f\u539f\u59cb\u6570\u636e)
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\u5728\u6587\u4ef6 FCB \u4e2d\u6dfb\u52a0\u8bbf\u95ee\u63a7\u5236\u8868,\u8bb0\u5f55\u5404\u4e2a\u7528\u6237\u7684\u6743\u9650
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\u7a0b\u5e8f\u8ba1\u6570\u5668PC(Program Counter)
\u7a0b\u5e8f\u72b6\u6001\u5b57\u5bc4\u5b58\u5668PSW(Program Status Word)
\u901a\u7528\u5bc4\u5b58\u5668
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\u64cd\u4f5c\u7cfb\u7edf\u7684\u5f15\u5bfc\u7a0b\u5e8f\u4f4d\u4e8e\u78c1\u76d8\u6d3b\u52a8\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\u4e2d,\u5f15\u5bfc\u7a0b\u5e8f\u5206\u4e3a\u4e24\u79cd,\u4e00\u79cd\u662f\u4f4d\u4e8e ROM \u4e2d\u7684\u81ea\u4e3e\u7a0b\u5e8f(BIOS \u7684\u7ec4\u6210\u90e8\u5206),\u7528\u4e8e\u542f\u52a8\u5177\u4f53\u7684\u8bbe\u5907;\u53e6\u4e00\u79cd\u662f\u4f4d\u4e8e\u88c5\u6709\u64cd\u4f5c\u7cfb\u7edf\u7684\u6d3b\u52a8\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\u4e2d\u7684\u5f15\u5bfc\u7a0b\u5e8f (\u79f0\u4e3a\u542f\u52a8\u7ba1\u7406\u5668),\u7528\u4e8e\u5f15\u5bfc\u64cd\u4f5c\u7cfb\u7edf.<\u8ba1\u7b97\u673a\u7684\u5f15\u5bfc\u7a0b\u5e8f\u4f4d\u4e8e\u786c\u76d8\u4e2d>
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter1/#_1","title":"\u8ba1\u7b97\u673a\u542f\u52a8\u8fc7\u7a0b:","text":"\u6fc0\u6d3b CPU (\u8bfb\u53d6 ROM \u4e2d\u7684 boot \u7a0b\u5e8f,\u5c06\u6307\u4ee4\u5bc4\u5b58\u5668\u8bbe\u7f6e\u4e3a BIOS \u7684\u7b2c\u4e00\u6761\u6307\u4ee4,\u4e5f\u5c31\u662f\u5f00\u59cb\u6267\u884c BIOS \u7684\u6307\u4ee4) \n-> \u786c\u4ef6\u81ea\u68c0: BIOS \u6784\u5efa\u4e2d\u65ad\u5411\u91cf\u8868,\u68c0\u67e5\u786c\u4ef6\n-> \u52a0\u8f7d\u5e26\u6709\u64cd\u4f5c\u7cfb\u7edf\u7684\u786c\u76d8:\u8bfb\u53d6 Boot Sequence ,\u5c06\u63a7\u5236\u6743\u4ea4\u7ed9\u542f\u52a8\u987a\u5e8f\u5728\u7b2c\u4e00\u4f4d\u7684\u5b58\u50a8\u8bbe\u5907\n (\u6216\u8005\u548c\u7528\u6237\u4ea4\u4e92,\u6bd4\u5982\u53cc\u7cfb\u7edf\u9009\u62e9\u8fdb\u5165 ubuntu \u8fd8\u662f Windows \u7684\u65f6\u5019\u51fa\u73b0\u7684\u754c\u9762)\n \u7136\u540eCPU \u5c06\u5b58\u50a8\u8bbe\u5907\u5f15\u5bfc\u6247\u533a\u7684\u5185\u5bb9\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\n->\u52a0\u8f7d\u4e3b\u5f15\u5bfc\u8bb0\u5f55(MBR)<\u4f5c\u7528\u662f\u544a\u8bc9 CPU \u786c\u76d8\u7684\u54ea\u4e2a\u5206\u533a\u627e\u64cd\u4f5c\u7cfb\u7edf>:\u68c0\u67e5\u5b58\u50a8\u8bbe\u5907\u662f\u4e0d\u662f\u53ef\u5f15\u5bfc\u76d8,\u4e0d\u662f\u5c31\u5230\u4e0b\u4e00\u4e2a\u5b58\u50a8\u8bbe\u5907\n->\u626b\u63cf\u786c\u76d8\u5206\u533a\u8868,\u52a0\u8f7d\u786c\u76d8\u6d3b\u52a8\u5206\u533a:\u5c06\u63a7\u5236\u6743\u4ea4\u7ed9\u6d3b\u52a8\u5206\u533a(\u64cd\u4f5c\u7cfb\u7edf\u5728\u8fd9\u91cc)\n->\u52a0\u8f7d\u5206\u533a\u5f15\u5bfc\u8bb0\u5f55(PBR):\u8fd9\u662f\u6d3b\u52a8\u5206\u533a\u7684\u7b2c\u4e00\u4e2a\u6247\u533a,\u5bfb\u627e\u5e76\u6fc0\u6d3b\u6839\u76ee\u5f55\u4e0b\u7528\u4e8e\u5f15\u5bfc\u64cd\u4f5c\u7cfb\u7edf\u7684\u7a0b\u5e8f(\u542f\u52a8\u7ba1\u7406\u5668)\n->\u52a0\u8f7d\u542f\u52a8\u7ba1\u7406\u5668\n->\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf:\u5c06\u64cd\u4f5c\u7cfb\u7edf\u7684\u521d\u59cb\u5316\u7a0b\u5e8f\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u5f00\u59cb\u6267\u884c\n
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter2/","title":"Note chapter2","text":"\u7ebf\u7a0b\u662f CPU \u8c03\u5ea6\u7684\u57fa\u672c\u5355\u4f4d,\u53ef\u4ee5\u72ec\u7acb\u7684\u6267\u884c\u7a0b\u5e8f(\u5e76\u4e0d\u662f\u4e00\u5b9a\u8981\u8bf4\u8fdb\u7a0b)
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\u6bd4\u5982\u5e76\u53d1\u8fdb\u7a0b\u5171\u4eab\u53d8\u91cf\u7684\u65f6\u5019,\u5404\u4e2a\u8fdb\u7a0b\u6267\u884c\u7684\u5148\u540e\u987a\u5e8f\u4e0d\u540c\u53d8\u91cf\u7684\u6700\u7ec8\u7ed3\u679c\u4e5f\u6709\u53ef\u80fd\u4e0d\u540c\n
\u901f\u5ea6\u6700\u5feb\u7684\u8fdb\u7a0b\u901a\u4fe1\u65b9\u5f0f\u662f\u5171\u4eab\u5185\u5b58,\u6d88\u606f\u4f20\u9012\u9700\u8981\u62f7\u8d1d\u6570\u636e,\u4f20\u9012,\u6392\u961f\u7b49\u7b49,\u7ba1\u9053\u901a\u4fe1\u540c\u7406
\u5355\u5904\u7406\u5668\u7cfb\u7edf\u5b9e\u73b0\u5e76\u53d1\u6280\u672f\u540e,\u540c\u4e00\u65f6\u95f4\u6bb5\u5185\u5404\u4e2a\u8fdb\u7a0b\u5e76\u53d1\u8fd0\u884c,cpu \u548c I/O \u8bbe\u5907\u5e76\u884c\u5de5\u4f5c
\u7ebf\u7a0b\u7684\u4f18\u70b9\u6709\u63d0\u9ad8\u7cfb\u7edf\u5e76\u53d1\u6027,\u8282\u7ea6\u7cfb\u7edf\u8d44\u6e90,\u4fbf\u4e8e\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7b49\u7b49,\u4f46\u662f\u7ebf\u7a0b\u4f1a\u964d\u4f4e\u8fdb\u7a0b\u7684\u5b89\u5168\u6027,\u56e0\u4e3a\u4e00\u65e6\u4e00\u4e2a\u7ebf\u7a0b\u51fa\u73b0\u95ee\u9898,\u6574\u4e2a\u8fdb\u7a0b\u90fd\u6709\u53ef\u80fd\u51fa\u9519
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\u8fdb\u7a0b\u5524\u9192\u7684\u6982\u5ff5\u662f\u8bf4,\u5f53\u8fdb\u7a0b\u9700\u8981\u7684\u8d44\u6e90(\u4e0d\u5305\u62ecCPU)\u53ef\u7528\u7684\u65f6\u5019,\u8fdb\u7a0b\u88ab\u5524\u9192.
\u6240\u4ee5,\u65f6\u95f4\u7247\u7528\u5b8c\u4ee5\u540e\u4e0b\u4e00\u4e2a\u8fdb\u7a0b\u4e0a\u5904\u7406\u673a\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e0d\u80fd\u8bf4\u662f\u5524\u9192,\u56e0\u4e3a\u4e8b\u5b9e\u4e0a\u8fd9\u4e2a\u8fdb\u7a0b\u7b49\u5f85\u7684\u7cfb\u7edf\u8d44\u6e90\u662f\u5904\u7406\u673a\n
\u4e34\u754c\u8d44\u6e90\u53ea\u80fd\u540c\u65f6\u88ab\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528,\u5373\u4fbf\u662f\u7236\u5b50\u8fdb\u7a0b\u4e5f\u4e0d\u80fd\u540c\u65f6\u8bbf\u95ee,\u53e6\u5916\u7236\u5b50\u8fdb\u7a0b\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\u4e0d\u662f\u5171\u4eab\u7684,\u7236\u8fdb\u7a0b\u53ea\u53ef\u4e0e\u5b50\u8fdb\u7a0b\u5171\u4eab\u4e00\u90e8\u5206\u8d44\u6e90
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FCFS\u5229\u4e8e\u957f\u4f5c\u4e1a\uff0c\u800cCPU\u578b\u7e41\u5fd9\u4f5c\u4e1a\u4e5f\u8981\u957f\u65f6\u95f4\u5360\u7528CPU\uff0c\u56e0\u6b64\u7c7b\u4f3c\u4e8e\u957f\u4f5c\u4e1a\uff0c\u4ece\u800cFCFS\u7b97\u6cd5\u4e5f\u5229\u4e8eCPU\u7e41\u5fd9\u578b\u4f5c\u4e1a
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0\u65f6\u523b\u4e0a\u5904\u7406\u673a\u4e5f\u5c5e\u4e8e\u8fdb\u7a0b\u8c03\u5ea6\uff0c\u56e0\u6b64\u5982\u679c\u9898\u76ee\u95ee\u8c03\u5ea6\u6b21\u6570\u8bb0\u5f97\u52a0\u4e0a\u6700\u5f00\u59cb\u7684\u4e00\u6b21
\u6b63\u5728\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u8fdb\u7a0b\u7531\u4e8e\u8bf7\u6c42 I/O \u88ab\u963b\u585e\u65f6,\u8fd0\u6c14\u5176\u4ed6\u8fdb\u7a0b\u4e0a\u5904\u7406\u673a\u8fd0\u884c\u4f46\u662f\u4e0d\u5f97\u8fdb\u5165\u8be5\u8fdb\u7a0b\u6240\u9501\u5b9a\u7684\u4e34\u754c\u533a
\u5171\u4eab\u6570\u636e\u548c\u4e34\u754c\u8d44\u6e90\u7684\u6700\u5927\u533a\u522b\u5c31\u662f\u662f\u5426\u5728\u540c\u4e00\u65f6\u95f4\u5185\u53ea\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u8bbf\u95ee,\u5982\u516c\u7528\u961f\u5217
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\u7528 P,V \u64cd\u4f5c\u5b9e\u73b0\u8fdb\u7a0b\u540c\u6b65,\u4fe1\u53f7\u91cf\u7684\u521d\u503c\u5c31\u662f\u8d44\u6e90\u7684\u91cf\u5316
\u7eaf\u4ee3\u7801:\u53c8\u79f0\u53ef\u91cd\u5165\u4ee3\u7801,\u5141\u8bb8\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8bbf\u95ee
\u6b7b\u9501\u7684\u60c5\u51b5
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter2/#process1-px-ifyavailable-py-something-process2-py-ifxavailable-px-something","title":"process1{\n P(X);\n if(Y.available){\n P(Y);\n something;\n }\n}\n\nprocess2{\n P(Y);\n if(X.available){\n P(X);\n something;\n }\n}\n
","text":"\u53ef\u80fd\u51fa\u73b0\u8fdb\u7a0b\u5168\u90e8\u88ab\u963b\u585e\u7684\u60c5\u51b5(n \u4e2a ),\u4f46\u662f\u5982\u679c\u6ca1\u6709\u963b\u585e,\u5c31\u7eea\u961f\u5217\u6700\u591a\u6709 n-1 \u4e2a\u8fdb\u7a0b(\u603b\u5171 n \u4e2a)
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-%E6%A0%B8%E5%BF%83%E6%80%81%E6%8C%87%E4%BB%A4/","title":"Note \u6838\u5fc3\u6001\u6307\u4ee4","text":"\u5927\u591a\u6570\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u5305\u62ec\u56db\u4e2a\u65b9\u9762:
1.\u65f6\u949f\u7ba1\u7406\n2.\u4e2d\u65ad\u673a\u5236\n3.\u539f\u8bed\n4.\u7cfb\u7edf\u63a7\u5236\u7684\u6570\u636e\u7ed3\u6784\u548c\u5904\u7406\n
\u5c4f\u853d\u4e2d\u65ad
\u8bbe\u7f6e\u65f6\u949f\u7684\u503c
\u505c\u673a\u6307\u4ee4
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\u6570\u5b66\u5206\u6790(\u9648\u7eaa\u4fee)\u53c2\u8003\u7b54\u6848
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e00\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e8c\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e09\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u603b\u5377
\u7ea6\u5b9a:
\\(I \\subset D_f\\)\u8868\u793a\\(f\\)\u5728\\(I\\)\u4e0a\u6709\u5b9a\u4e49 \\(A\\Rightarrow B\\),\u8868\u793a\\(A\\)\u8574\u542b\\(B\\) \\(f\\in B([a,b])\\),\u8868\u793a\\(f\\)\u5728\\([a,b]\\)\u4e0a\u6709\u754c \\(f\\in C([a,b])\\),\u8868\u793a\\(f\\)\u5728\\([a,b]\\)\u4e0a\u8fde\u7eed "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/","title":"\u96c6\u5408\u4e0e\u6620\u5c04","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#111","title":"\u5b9a\u7406 1.1.1","text":" \u53ef\u5217\u4e2a\u53ef\u6570\u96c6\u4e4b\u5e76\u4e5f\u662f\u53ef\u6570\u96c6 \u8bc1\u660e:\u5bf9\u89d2\u7ebf\u6cd5\u5219
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#112","title":"\u5b9a\u7406 1.1.2","text":" \u6709\u7406\u6570\u96c6\\(Q\\)\u662f\u53ef\u5217\u96c6 \u4f9d\u5b9a\u7406 1.1.1 \u53ea\u9700\u8bc1(0,1] \u95f4\u6709\u7406\u6570\u53ef\u5217,\u4efb\u610f\\(r\\in Q\\cap (0,1],\\exists p,q\\in N^+,s.t.\\;r=\\frac{p}{q}\\), \\(q=n\\)\u7684\u65e2\u7ea6\u5206\u6570\u6700\u591a\u6709\\(n-1\\) \u4e2a,\u4ece\u800c\u5f88\u5bb9\u6613\u6392\u6210\u4e00\u5217
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"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#123","title":"\u5b9a\u4e49 1.2.3","text":" \u82e5\u5b58\u5728\u5e38\u6570\\(m,M\\),s.t.\\(\\forall x\\in A,m\\leq f(x)\\leq M\\),\u5219\u79f0\\(f\\)\u5728\\(A\\)\u4e0a\u6709\u754c,\u5e76\u79f0\\(m,M\\)\u4e3a\\(f\\)\u5728\\(A\\)\u4e0a\u7684\u4e0b\u754c\u548c\u4e0a\u754c "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#124-126","title":"\u5b9a\u4e49 1.2.4-1.2.6","text":" \u5355\u8c03\u6027,\u5947\u5076\u6027,\u5468\u671f\u6027 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#121_1","title":"\u5b9a\u7406 1.2.1","text":" \u4e09\u89d2\u4e0d\u7b49\u5f0f:\\(\\forall a,b\\in R,||a|-|b||\\leq |a+b|\\leq |a|+|b|\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#122_1","title":"\u5b9a\u7406 1.2.2","text":" \u5e73\u5747\u503c\u4e0d\u7b49\u5f0f \u8bbe\\(a_1,a_2,\\cdots,a_n\\in R,\\)\u5219\u79f0\\(\\frac{a_1+a_2+\\cdots+a_n}{n}\\)\u4e3a\u7b97\u6570\u5e73\u5747\u6570,\u79f0\\(\\sqrt[n]{a_1a_2\\cdots a_n}\\)\u4e3a\u51e0\u4f55\u5e73\u5747\u6570, \u79f0\\(n/(\\frac{1}{a_1}+\\frac{1}{a_2}+\\cdots+\\frac{1}{a_n})\\)\u4e3a\u8c03\u548c\u5e73\u5747\u6570,\u5219\u6709 \\(\\(\\frac{a_1+a_2+\\cdots+a_n}{n}\\geq \\sqrt[n]{a_1a_2\\cdots a_n}\\geq n/(\\frac{1}{a_1}+\\frac{1}{a_2}+\\cdots+\\frac{1}{a_n})\\)\\)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/","title":"\u6570\u5217\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_2","title":"\u5b9e\u6570\u7cfb\u8fde\u7eed\u6027","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#211","title":"\u5b9a\u7406 2.1.1","text":"\u786e\u754c\u5b58\u5728\u539f\u7406-\u5b9e\u6570\u7cfb\u8fde\u7eed\u6027\u5b9a\u7406
\u975e\u7a7a\u6709\u4e0a\u754c\u7684\u6570\u96c6\u5fc5\u6709\u4e0a\u786e\u754c,\u975e\u7a7a\u6709\u4e0b\u754c\u7684\u6570\u96c6\u5fc5\u6709\u4e0b\u786e\u754c "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#212","title":"\u5b9a\u7406 2.1.2","text":" \u975e\u7a7a\u6709\u754c\u6570\u96c6\u7684\u4e0a(\u4e0b)\u786e\u754c\u552f\u4e00 note:Dedekind\u5206\u5272\u539f\u7406
\u5b9a\u4e49 1:\u8bbe\u4e24\u4e2a\u975e\u7a7a\u6709\u7406\u96c6\u5408\\(A,B\\)\u6ee1\u8db3\u5982\u4e0b\u6761\u4ef6:\\(Q=A\\cup B,\\forall a\\in A,b\\in B,a<b\\),\u5219\u79f0\\(A,B\\)\u4e3a\\(Q\\)\u7684\u4e00\u4e2a\u5207\u5272,\u8bb0\u4e3a\\(A/B\\)
\u4ece\u903b\u8f91\u4e0a\u8bb2,\u4efb\u4f55\u4e00\u4e2a\u5207\u5272\u53ea\u6709\u4ee5\u4e0b\u56db\u79cd\u60c5\u51b5\n1.\u96c6\u5408 A \u6709\u6700\u5927\u6570 a,\u96c6\u5408 B \u65e0\u6700\u5c0f\u6570\n2.\u96c6\u5408 A \u65e0\u6700\u5927\u6570,\u96c6\u5408 B \u6709\u6700\u5c0f\u6570b\n3.\u96c6\u5408 A \u65e0\u6700\u5927\u6570,\u96c6\u5408 B \u65e0\u6700\u5c0f\u6570\n4.\u96c6\u5408 A \u6709\u6700\u5927\u6570a,\u96c6\u5408 B \u6709\u6700\u5c0f\u6570b\n\n\u5bf9\u4e8e\u60c5\u51b5 4 \u662f\u4e0d\u53ef\u80fd\u7684,\u5982\u679c\u4e0d\u7136(a+b)/2 \u662f\u4ecb\u4e8e a,b \u4e4b\u95f4\u7684\u6709\u7406\u6570,\u4e0e A/B \u662f\u6709\u7406\u6570\u7684\u5206\u5272\u77db\u76fe\n\u5bf9\u4e8e\u60c5\u51b5 1,2,\u4ed6\u4eec\u786e\u5b9a\u4e86\u4e24\u4e2a\u6709\u7406\u6570,\u5bf9\u4e8e\u60c5\u51b5 3,\u4ed6\u4eec\u6ca1\u6709\u786e\u5b9a\u6709\u7406\u6570,\u5f15\u8fdb\u65e0\u7406\u6570\u7684\u6982\u5ff5\n
\u5b9a\u4e49 2:\u8bbe A/B \u662f\u6709\u7406\u6570\u96c6\u7684\u4e00\u4e2a\u5207\u5272,\u82e5 A \u6ca1\u6709\u6700\u5927\u6570,B \u6ca1\u6709\u6700\u5c0f\u6570,\u90a3\u4e48\u5c31\u79f0 A/B \u786e\u5b9a\u4e86\u4e00\u4e2a\u65e0\u7406\u6570 c,c \u5927\u4e8e A \u4e2d\u4efb\u4f55\u4e00\u4e2a\u6709\u7406\u6570,\u5c0f\u4e8e B \u4e2d\u4efb\u4f55\u4e00\u4e2a\u6709\u7406\u6570
\u5b9a\u4e49 3:\u6709\u6709\u7406\u6570\u548c\u5b9a\u4e49 2 \u786e\u5b9a\u7684\u5168\u4f53\u65e0\u7406\u6570\u6784\u6210\u4e86\u5b9e\u6570\u96c6\\(R\\)
Dedekind \u5207\u5272\u5b9a\u7406:\u8bbe A/B \u662f\u5b9e\u6570\u96c6\\(R\\) \u7684\u4e00\u4e2a\u5207\u5272,\u5219\u6216\u8005 A \u6709\u6700\u5927\u6570\u6216\u8005 B \u6709\u6700\u5c0f\u6570
\u8fd9\u91cc\u662f\u5bf9 R \u5207\u5272,\u548c Q \u5207\u5272\u4e0d\u540c.\u8bc1\u660e\u53ef\u7528\u53cd\u8bc1\u6cd5,\u6ce8\u610f\u8fd9\u91cc\u7684\u6216\u8005\u662f\u6392\u4e2d\u7684\n\n\u7531 Dedekind \u5207\u5272\u5b9a\u7406\u53ef\u4ee5\u8bc1\u660e\u786e\u754c\u5b58\u5728\u5b9a\u7406: \u5bf9\u975e\u7a7a\u6709\u4e0a\u754c\u7684\u6570\u96c6 S,\u8bbe A \u662f S \u7684\u4e0a\u754c\u7ec4\u6210\u7684\u96c6\u5408,B \u662f A \u7684\u8865,\u90a3\u4e48\u6216\u8005 B \u6709\u6700\u5927\u6570,\u6216\u8005 A \u6709\u6700\u5c0f\u6570(\u786e\u754c\u5b58\u5728)\n\u8bc1\u660e B \u6ca1\u6709\u6700\u5927\u6570:\u5982\u679c\u6709b \u662f B \u7684\u6700\u5927\u6570,\u7531\u4e8e b \u4e0d\u662f S \u7684\u4e0a\u754c,\u4ece\u800c\u5b58\u5728 s\\in S, s>b,\u90a3\u4e48 s \u4e00\u5b9a\u5728 B \u4e2d,\u4e0e b \u662f B \u7684\u6700\u5927\u6570\u77db\u76fe\n
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_3","title":"\u6570\u5217\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#221","title":"\u5b9a\u4e49 2.2.1","text":" \u8bbe\\(\\{x_n\\}\\)\u662f\u4e00\u4e2a\u6570\u5217,\u5982\u679c\\(\\exists a\\in R,s.t.\\forall \\varepsilon>0,\\exists N>0,s.t.\\forall n>N\\) ,\u6709\\(|x_n-a|<\\varepsilon\\),\u90a3\u4e48\u79f0\\(a\\)\u662f\u6570\u5217\\(\\{x_n\\}\\)\u7684\u6781\u9650, \u8bb0\u4e3a\\(\\lim\\limits_{n\\to\\infty}x_n=a\\),\u6216\u8005\\(x_n\\to a(n\\to\\infty)\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_4","title":"\u5b9a\u4e49:\u65e0\u7a77\u5c0f\u91cf","text":" \u79f0\u6781\u9650\u4e3a 0\u7684\u6570\u5217\u4e3a\u65e0\u7a77\u5c0f\u91cf,,\u65e0\u7a77\u5c0f\u91cf\u662f\u4e00\u4e2a\u53d8\u91cf,\\(\\{0,0,\\cdots,0\\}\\)\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u65e0\u7a77\u5c0f\u91cf, \u7531\u5b9a\u4e49\\(\\lim\\limits_{n\\to\\infty}x_n=a\\iff \\{x_n-a\\}\\)\u662f\u65e0\u7a77\u5c0f\u91cf "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#221_1","title":"\u5b9a\u7406 2.2.1","text":" \u6536\u655b\u6570\u5217\u6781\u9650\u552f\u4e00 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#222","title":"\u5b9a\u7406 2.2.2","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#223","title":"\u5b9a\u7406 2.2.3","text":" \u8bbe\u6570\u5217\\(\\{x_n\\},\\{y_n\\}\\)\u5206\u522b\u6536\u655b\u5230\\(a,b\\),\u4e14\\(a<b\\)\u90a3\u4e48 \\(\\exists N\\in N^+,\\forall n>N:x_n<y_n\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_5","title":"\u63a8\u8bba","text":" \u6536\u655b\u6570\u5217\u6709\u4fdd\u53f7\u6027 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#224","title":"\u5b9a\u7406 2.2.4","text":" \u4e09\u4e2a\u6570\u5217\\(\\{x_n\\},\\{y_n\\},\\{z_n\\}\\),\u5982\u679c\\(\\exists N\\in N^+,s.t.\\forall n>N,x_n\\leq y_n\\leq z_n\\),\u4e14\\(\\lim\\limits_{n\\to\\infty}x_n=\\lim\\limits_{n\\to\\infty}z_n=a\\),\u90a3\u4e48\\(\\lim\\limits_{n\\to\\infty}y_n=a\\)
\u5939\u903c\u51c6\u5219
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#225","title":"\u5b9a\u7406 2.2.5","text":" \u6570\u5217\u6781\u9650\u7684\u56db\u5219\u8fd0\u7b97
\u8bbe\\(\\lim\\limits_{n\\to\\infty}x_n=a,\\lim\\limits_{n\\to\\infty}y_n=b\\),\u5219
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\u540c\u7406\u53ef\u4ee5\u5b9a\u4e49\u5355\u8c03\u51cf\u5c11\u6570\u5217\u548c\u4e25\u683c\u5355\u8c03\u51cf\u5c11\u6570\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#233-stolz","title":"\u5b9a\u7406 2.3.3 (Stolz\u5b9a\u7406)","text":" \u5982\u679c\\(\\{y_n\\}\\)\u4e3a\u4e25\u683c\u5355\u8c03\u589e\u52a0\u7684\u6b63\u65e0\u7a77\u5927\u91cf,\u5e76\u4e14\u6709\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n-x_{n-1}}{y_n-u_{n-1}}=a\\) ,\\(a\\)\u662f\u5e38\u6570\u6216\u8005\\(\u00b1\\infty\\),\u90a3\u4e48\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n}{y_n}=a\\)
\u8fd9\u91cc\\(a\\)\u662f\u65e0\u7a77\u7684\u65f6\u5019,\u5fc5\u987b\u6307\u5b9a\u662f\u6b63\u65e0\u7a77\u8fd8\u662f\u8d1f\u65e0\u7a77,\u5982\u679c\u662f\u8df3\u8dc3\u7684\u90a3\u4e48\\(Stolz\\)\u5b9a\u7406\u4e0d\u9002\u7528
\u8003\u8651\u4f8b\u5b50:\\(x_n=(-1)^nn,y_n=n\\),\u663e\u7136\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}=\\lim\\limits_{n\\to\\infty}(-1)^n(2n-1)=\\infty\\),\u4f46\u662f\\(\\frac{x_n}{y_n}=(-1)^n\\)\u4e0d\u5b58\u5728 \u5982\u679c\\(\\lim\\limits\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}\\)\u6781\u9650\u4e0d\u5b58\u5728\u4e5f\u4e0d\u80fd\u8bf4\u660e\\(\\lim\\frac{x_n}{y_n}\\)\u4e0d\u5b58\u5728
\u8003\u8651\u4f8b\u5b50:\\(x_n=1-2+\\cdots+(-1)^nn,y_n=n\\),\u663e\u7136\\(\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}=\\frac{(-1)^nn}{2n-1}\\) \u6781\u9650\u4e0d\u5b58\u5728,\u4f46\u662f\\(\\frac{x_n}{y_n} =\\frac{1/4-(n/2+1/4)(-1)^{n+1}}{n^2}\\to 0\\) Stolz\u5b9a\u7406\u53ea\u80fd\u662f\u5728\u6781\u9650\\(\\lim\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}\\exists\\)\u65f6\u53bb\u53cd\u63a8\\(\\lim\\frac{x_n}{y_n}\\)
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\u4e14\\(\\lim\\limits_{n\\to\\infty}(b_n-a_n)=0\\),\u90a3\u4e48\u79f0\\(\\{[a_n,b_n]\\}\\)\u4e3a\u95ed\u533a\u95f4\u5957
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\u82e5\u6539\u6210\u5f00\u533a\u95f4:\u53ea\u6709\u5728\\(\\{(a_n,b_n)\\},a_1<a_2<\\cdots<a_n<\\cdots<b_n<\\cdots <b_1\\)\u7684\u60c5\u51b5\u4e0b\u6210\u7acb,\u4e0d\u80fd\u53d6\u7b49\u53f7,\u5426\u5219\u5982\\(\\{(0,\\frac{1}{n})\\}_{n=1}^\\infty\\)\u5c31\u662f\u4e00\u4e2a\u53cd\u4f8b "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#243","title":"\u5b9a\u7406 2.4.3","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#242_1","title":"\u5b9a\u4e49 2.4.2","text":" \u8bbe\\(\\{x_n\\}\\)\u662f\u4e00\u4e2a\u6570\u5217,\u800c\\(n_1,n_2,\\cdots\\)\u662f\u4e00\u4e2a\u9012\u589e\u7684\u6b63\u6574\u6570\u6570\u5217,\u90a3\u4e48\u79f0\\(\\{x_{n_k}\\}\\)\u4e3a\\(\\{x_n\\}\\)\u7684\u4e00\u4e2a\u5b50\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#244","title":"\u5b9a\u7406 2.4.4","text":" \u8bbe\\(\\{x_n\\}\\)\u6536\u655b\u5230\\(a\\),\u90a3\u4e48\u5176\u4efb\u4e00\u5b50\u5217\\(\\{x_{n_k}\\}\\)\u4e5f\u6536\u655b\u5230\\(a\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#245bolzano-weierstrass","title":"\u5b9a\u7406 2.4.5(Bolzano-Weierstrass\u5b9a\u7406)","text":" \u6709\u754c\u6570\u5217\u5fc5\u6709\u6536\u655b\u5b50\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#246","title":"\u5b9a\u7406 2.4.6","text":" \u82e5\\(\\{x_n\\}\\)\u662f\u65e0\u754c\u6570\u5217,\u90a3\u4e48\u5b58\u5728\u5b50\u5217\\(\\{x_{n_k}\\}\\)\u4e5f\u662f\u65e0\u754c\u7684 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#243_1","title":"\u5b9a\u4e49 2.4.3(\u57fa\u672c\u5217)","text":" \u5bf9\u6570\u5217\\(\\{x_n\\},\\)\u82e5\\(\\forall\\epsilon>0,\\exists N>0,s.t.\\forall n,m>N,|x_m-x_n|<\\epsilon\\),\u5219\u79f0\u6570\u5217\u662f\u57fa\u672c\u6570\u5217(\u57fa\u672c\u5217,Cauchy \u5217) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#247cauchy","title":"\u5b9a\u7406 2.4.7(Cauchy \u6536\u655b\u51c6\u5219)","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#248","title":"\u5b9a\u7406 2.4.8","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/","title":"\u51fd\u6570\u6781\u9650\u548c\u8fde\u7eed\u51fd\u6570","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#_2","title":"\u51fd\u6570\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#311","title":"\u5b9a\u4e49 3.1.1","text":" \u8bbe\u51fd\u6570 \\(f(x)\\) \u5728\u70b9 \\(x_0\\) \u7684\u67d0\u4e2a\u53bb\u5fc3\u90bb\u57df\u5185\u6709\u5b9a\u4e49\uff0c\u5982\u679c\u5b58\u5728\u5e38\u6570 \\(A\\)\uff0c\u5bf9\u4e8e\u4efb\u610f\u7ed9\u5b9a\u7684\u6b63\u6570 \\(\\varepsilon\\)\uff0c\u603b\u5b58\u5728\u6b63\u6570 \\(\\delta\\)\uff0c\u4f7f\u5f97\u5f53 \\(x\\) \u6ee1\u8db3\u4e0d\u7b49\u5f0f \\(0 < |x - x_0| < \\delta\\) \u65f6\uff0c\u5bf9\u5e94\u7684\u51fd\u6570\u503c \\(f(x)\\) \u6ee1\u8db3\u4e0d\u7b49\u5f0f \\(|f(x) - A| < \\varepsilon\\)\uff0c\u90a3\u4e48\u5e38\u6570 \\(A\\) \u662f\\(f\\)\u5728\\(x_0\\)\u5904\u7684\u6781\u9650,\u8bb0\u4f5c\\(\\lim\\limits_{x \\to x_0} f(x) = A\\) \u6216 \\(f(x) \\to A\\)(\\(x \\to x_0\\) \u65f6) \\(\\lim\\limits_{x\\to x_0}f(x)=A\\iff \\forall\\epsilon>0,\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta)\\backslash\\{x_0\\}:|f(x)-A|<\\epsilon\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#311_1","title":"\u5b9a\u7406 3.1.1","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#312","title":"\u5b9a\u7406 3.1.2","text":" \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A,\\lim\\limits_{x\\to x_0}g(x)=B\\)\u4e14\\(A>B\\),\u5219\\(\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta):f(x)>g(x)\\)
\u5c40\u90e8\u62a5\u5e8f\u6027
\u63a8\u8bba 1: \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A\\neq 0\\)\u5219\\(\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta):|f(x)| > \\frac{|A|}{2}\\) \u63a8\u8bba 2: \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A,\\lim\\limits_{x\\to x_0}g(x)=B,\\)\u4e14\\(\\exists r>0,s.t.\\forall x\\in O(x_0,r):g(x)\\leq f(x)\\),\u5219:\\(\\(B\\leq A\\)\\)
\u5c31\u7b97\\(g(x)<f(x)\\),\u4e5f\u4e0d\u80fd\u63a8\u51fa\\(B<A\\),\u4f8b\u5982\\(f(x)=1,g(x)=1-x,x_0=0:A=B=1\\) \u63a8\u8bba 3(\u5c40\u90e8\u6709\u754c\u6027): \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A\\),\u5219\\(\\exists\\delta>0,s.t.f\\) \u5728\\(O(x_0,\\delta)\\)\u4e2d\u6709\u754c
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\u5939\u903c\u6027
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\u5de6\u5bfc\u6570\u548c\u53f3\u5bfc\u6570
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\u5b9e\u9645\u4e0a\u8fd9\u5c31\u662f\u4e00\u4e2a\u6709\u5411\u8d4b\u6743\u56fe
\u5982\u4f55\u8ba1\u7b97\u5462\uff1f $$ x_j=\\frac{x_{j_1}}{q_{j_1}} + \\frac{x_{j_2}}{q_{j_2}} + \\cdots + \\frac{x_{j_k}}{q_{j_k}}=\\sum_{i=1}^{n}p_{i,j}x_i\\ X=\\begin{bmatrix} x_1 \\ x_2 \\ \\vdots \\ x_n \\end{bmatrix}\\ \\ p_{i,j}=\\begin{cases} \\frac{1}{q_j} & \\text{\u5982\u679c\u7f51\u9875j\u94fe\u63a5\u5230\u7f51\u9875i} \\ 0 & \\text{\u5176\u4ed6} \\end{cases} then:X=PX $$
\u4e00\u5b9a\u6709\u975e\u96f6\u89e3\u5417\uff1f
\u6ce8\u610f\u5230\\(P\\)\u7684\u6bcf\u4e00\u5217\u5143\u7d20\u4e4b\u548c\u4e3a1,\u6240\u4ee5 P \u662f\u5217\u968f\u673a\u77e9\u9635
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_3","title":"\u968f\u673a\u77e9\u9635","text":"\u5404\u884c\uff08\u5217\uff09\u5143\u7d20\u4e4b\u548c\u5747\u4e3a1\u7684\u975e\u8d1f\u65b9\u9635\u79f0\u4e3a\u884c(\u5217)\u968f\u673a\u77e9\u9635(row(column) stochastic matrix)
\u5404\u884c\u4e0e\u5404\u5217\u5143\u7d20\u4e4b\u548c\u5747\u4e3a1\u7684\u975e\u8d1f\u65b9\u9635\u79f0\u4e3a\u53cc\u968f\u673a\u77e9\u9635(doubly stochastic matrix)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#1","title":"\u4efb\u610f\u968f\u673a\u77e9\u9635\u7684\u6a21\u6700\u5927\u7279\u5f81\u503c\u662f1","text":"\u8bbe\\(\\lambda\\)\u662f\u77e9\u9635\\(P\\)\u7684\u7279\u5f81\u503c,\u975e\u96f6\u5411\u91cf\\(X\\)\u662f\u5bf9\u5e94\u7684\u7279\u5f81\u5411\u91cf,\u8bbe\\(|x_s|=\\max |x_i|\\),\u5219
\\[ \\lambda X=PX\\Rightarrow\\lambda x_s = \\sum_{i=1}^{n}p_{i,s}x_i\\Rightarrow \\lambda x_s = \\sum_{i=1}^{n}p_{i,s}x_i\\\\ then:|\\lambda|| x_s| = |\\sum_{i=1}^{n}p_{i,s}x_i|\\leq \\sum_{i=1}^{n}|p_{i,s}||x_i|\\leq |x_s|\\sum_{i=1}^{n}|p_{i,s}|=|x_s|\\\\ then:|\\lambda|\\leq 1 \\]"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_4","title":"\u94fe\u63a5\u77e9\u9635\u7684\u4fee\u6b63","text":"\u60ac\u6302\u7f51\u9875:\u6ca1\u6709\u94fe\u63a5\u51fa\u53bb\u7684\u7f51\u9875,\u4e5f\u5c31\u662f\u4e0d\u94fe\u63a5\u4efb\u4f55\u7f51\u9875\u7684\u7f51\u9875\n
\u7f51\u9875\u56e2,\u76f8\u5f53\u4e8e\u4e00\u90e8\u5206\u7f51\u9875\u4e92\u76f8\u94fe\u63a5,\u4f46\u662f\u4e0d\u94fe\u63a5\u5230\u5916\u90e8\n\u6bd4\u5982\u6296\u97f3\u548c\u5feb\u624b\u76f8\u4e92\u94fe\u63a5,YouTube \u548c Facebook \u76f8\u4e92\u94fe\u63a5\n
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_5","title":"\u73b0\u5728\u53ef\u4ee5\u6c42\u89e3\u91cd\u8981\u5ea6","text":"\u89e3\u51b3\u552f\u4e00\u6027:\u5b8c\u5168\u6b63,\u5217\u968f\u673a\u77e9\u9635\u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf\u662f\u552f\u4e00\u7684
\u5148\u8bc1\u660e\u5176\u7279\u5f81\u5411\u91cf\u7684\u5206\u91cf\u548c\u4e0d\u4e3a 0
\u8bbe\\(\\mathbf{X}=\\left(x_1, \\cdots, x_n\\right)^{\\top}\\) \u4e3a\u5b8c\u5168\u6b63,\u5217\u968f\u673a\u77e9\u9635\\(\\mathbf{P}\\) \u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf\uff0c\u5219 \\(x_i=\\sum\\limits_{j=1}^n p_{i j} x_j\\)
\u8fd9\u91cc\u662f\u4e25\u683c\u5c0f,\u56e0\u4e3a\u6709\u8d1f\u6570 - \u82e5\\(\\sum\\limits_{i=1}^n x_i=0\\),\u5219\\(\\mathbf{X}\\) \u7684\u5206\u91cf\u6709\u6b63\u6709\u8d1f\uff0c\u6545\\(\\left|x_i\\right|=\\left|\\sum\\limits_{j=1}^n p_{i j} x_j\\right|<\\sum_{j=1}^n p_{i j}\\left|x_j\\right|, i=1, \\cdots, n\\) - \\(\\sum\\limits_{i=1}^n\\left|x_i\\right|<\\sum\\limits_{i=1}^n \\sum\\limits_{j=1}^n p_{i j}\\left|x_j\\right|=\\sum\\limits_{j=1}^n\\left|x_j\\right|\\left(\\sum\\limits_{i=1}^n p_{i j}\\right)=\\sum\\limits_{j=1}^n\\left|x_j\\right| \\quad\\) \u77db\u76fe
\u518d\u8bc1\u660e\u552f\u4e00\u6027,\u8fd9\u91cc\u5982\u679c v \u548c w \u662f\u4e00\u6837\u7684\u6309\u5b9a\u4e49 x \u5c31\u662f\u96f6\u5411\u91cf
\u8bbe \\(\\mathbf{v}=\\left(v_1, \\cdots, v_n\\right)^{\\mathrm{T}}\\) \u548c \\(\\mathbf{w}=\\left(w_1, \\cdots, w_n\\right)^{\\mathrm{T}}\\) \u662f\u5b8c\u5168\u6b63\u3001\u5217\u968f\u673a\u77e9\u9635 \\(\\mathbf{P}\\) \u7684\u4e24\u4e2a\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7ebf\u6027\u65e0\u5173\u7684\u7279\u5f81\u5411\u91cf\u3002\u4ee4 \\(x_i=-\\frac{W}{V} v_i+w_i, i=1, \\cdots, n\\) \uff0c\u5176\u4e2d \\(V=\\sum\\limits_{k=1}^n v_k \\neq 0 \uff0c W=\\sum_{k=1}^n w_k\\) \u7531 \\(\\mathbf{v}\\) \u548c \\(\\mathbf{w}\\) \u7ebf\u6027\u65e0\u5173\uff0c\u4e0e \\(\\sum\\limits_{j=1}^n p_{i j} x_j=\\sum\\limits_{j=1}^n p_{i j}\\left(-\\frac{W}{V} v_j+w_j\\right)=-\\frac{W}{V} \\sum\\limits_{j=1}^n p_{i j} v_j+\\sum_{j=1}^{k=1} p_{i j} w_j=-\\frac{W}{V} v_i+w_i=x_i\\) \uff0c\u53ef\u77e5 \\(\\mathbf{x}=\\left(x_1, \\cdots, x_n\\right)\\) \u4e3a \\(\\mathbf{P}\\) \u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf \\(\\sum\\limits_{i=1}^n x_i=\\sum_{i=1}^n\\left(-\\frac{W}{V} v_i+w_i\\right)=-\\frac{W}{V} \\sum\\limits_{i=1}^n v_i+\\sum\\limits_{i=1}^n w_i=0 \\quad\\) \u77db\u76fe
\u8fd9\u6837\u5c31\u6c42\u51fa\u4e86\u7f51\u9875\u7684\u91cd\u8981\u5ea6
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/","title":"Nim \u6e38\u620f","text":"\u4e00\u5171\u6709 n \u5806\u786c\u5e01,\u6ca1\u5806\u6570\u91cf\u4e00\u5b9a,\u4e24\u4e2a\u4eba\u4f9d\u6b21\u53d6\u786c\u5e01,\u6bcf\u6b21\u4ece\u4e00\u5806\u4e2d\u53d6,\u6bcf\u6b21\u81f3\u5c11\u53d6\u4e00\u679a,\u53d6\u5230\u6700\u540e\u4e00\u679a\u786c\u5e01\u7684\u4eba\u83b7\u80dc
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_1","title":"\u5206\u6790","text":"\u7528\u5411\u91cf(i,j,k)\u8868\u793a\u5806\u548c\u5806\u6570
\\((1,1)\\) \u540e\u624b\u5fc5\u80dc
\\((1,i)\\) \u5148\u624b\u5fc5\u80dc
\u53ea\u9700\u53d6 \\((0,i-1)\\) \u4e2a\u8f6c\u5316\u6210\u7b2c\u4e00\u79cd\u60c5\u51b5,\u8fd9\u6837\u540e\u624b\u5fc5\u8d25
\\((i,i)\\) \u540e\u624b\u5fc5\u80dc
\u5982\u679c\u5148\u624b\u53d6\u5b8c\u67d0\u4e00\u5806\u5219\u76f4\u63a5\u80dc\u5229,\u5426\u5219\u82e5\u5148\u624b\u53d6\\((j,0)\\),\u540e\u624b\u53d6\\((0,j)\\),\u76f4\u5230\u6700\u540e\u53d8\u6210\\((1,1)\\),\u6216\u8005\\((0,k)\\)
\\((i,j)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((0,j-i)\\),(\u5047\u5b9a\\(j>i\\))\u8f6c\u5316\u6210\u7b2c\u4e09\u79cd\u60c5\u51b5,\u540e\u624b\u5fc5\u8d25
\u4e09\u4e2a\u5806\u7684\u60c5\u51b5:
\\((1,1,1)\\) \u5148\u624b\u5fc5\u80dc
\\((1,1,i)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((0,0,i)\\)\u5373\u53ef
\\((1,i,i)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((1,0,0)\\)\u5373\u53ef,\u8f6c\u5316\u6210\u540e\u624b\u5fc5\u80dc\u7684\\((i,i)\\) \u60c5\u51b5
\\((i,i,j)\\) \u5148\u624b\u5fc5\u80dc
\u540c\u7406,\u76f4\u63a5\u628a j \u53d6\u6389
\\((i,j,k)\\) \u4e0d\u786e\u5b9a\u4e86
\u90a3\u4e48\u5982\u4f55\u5fc5\u80dc\u5462(\u53ef\u4ee5\u5417?)?
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_2","title":"\u5b89\u5168\u72b6\u6001","text":" \u5bf9\u5df1\u65b9\u53d6\u540e\u5f62\u6210\u7684\u67d0\u4e2a\u72b6\u6001
\u2022\u82e5\u65e0\u8bba\u5bf9\u65b9\u5982\u4f55\u53d6\u5747\u4e0d\u4f1a\u83b7\u80dc\uff0c\u72b6\u6001\uff08\u5bf9\u5df1\u65b9\uff09\u4e3a\u5b89\u5168\u7684
\u81f3\u5c11\u6709\u4e24\u5806\u786c\u5e01\u7684\u72b6\u6001\u662f\u5b89\u5168\u7684\n
\u2022\u82e5\u5bf9\u65b9\u81f3\u5c11\u5b58\u5728\u4e00\u79cd\u83b7\u80dc\u7684\u53d6\u6cd5\uff0c\u72b6\u6001\uff08\u5bf9\u5df1\u65b9\uff09\u4e3a\u4e0d\u5b89\u5168\u7684
\u53ea\u6709\u4e00\u5806\u786c\u5e01\u7684\u72b6\u6001\u662f\u4e0d\u5b89\u5168\u7684\n
\u2022\u4e0d\u8bba\u5bf9\u65b9\u5982\u4f55\u53d6\uff0c\u5df1\u65b9\u4e0b\u4e00\u6b21\u53d6\u540e\u5747\u53ef\u53d8\u4e3a\u4e00\u4e2a\u5b89\u5168\u72b6\u6001\u7684\u72b6\u6001\u4e5f\u662f\u5b89\u5168\u7684
\u2022\u82e5\u5bf9\u65b9\u81f3\u5c11\u5b58\u5728\u4e00\u79cd\u53d6\u6cd5\uff0c\u5df1\u65b9\u4e0b\u4e00\u6b21\u53d6\u65e0\u6cd5\u53d8\u4e3a\u4e00\u4e2a\u5b89\u5168\u72b6\u6001\u7684\u72b6\u6001\u4e5f\u662f\u4e0d\u5b89\u5168\u7684
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_3","title":"\u5982\u4f55\u53d6\u80dc","text":"\u8ba9\u81ea\u5df1\u53d6\u5b8c\u4ee5\u540e\u53d8\u6210\u5b89\u5168\u72b6\u6001
\u5c06\u6bcf\u4e00\u5806\u786c\u5e01\u7684\u6570\u91cf\u8f6c\u5316\u6210\u4e8c\u8fdb\u5236,\u7136\u540e\u5bf9\u6bcf\u4e00\u4f4d\u6c42\u548c\uff0c\u79f0\u5176\u5c3e\u6570\u4e3a\u4f4d\u548c
\u53ea\u6709\u4e00\u5806\u786c\u5e01\u65f6\uff0c\u4f4d\u548c\u4e0d\u53ef\u80fd\u5168\u662f0\n\u6bcf\u6b21\u53d6\u786c\u5e01\u65f6\uff0c\u81f3\u5c11\u6709\u4e00\u4e2a\u4f4d\u548c\u53d1\u751f\u53d8\u5316\n
\u82e5\u6240\u6709\u4f4d\u548c\u90fd\u662f 0\uff0c\u5219\u72b6\u6001\u662f\u5b89\u5168\u7684\uff0c\u5426\u5219\u4e0d\u5b89\u5168
\u5982\u679c\u5f53\u524d\u72b6\u6001\u5b89\u5168\uff0c\u65e0\u8bba\u600e\u4e48\u53d6\u90fd\u4f1a\u4e0d\u5b89\u5168 \u5982\u679c\u5f53\u524d\u72b6\u6001\u4e0d\u5b89\u5168\uff0c\u90a3\u4e48\u5b58\u5728\u4e00\u79cd\u53d6\u6cd5\u4f7f\u5f97\u4e0b\u4e00\u72b6\u6001\u5b89\u5168
\u4ece\u5de6\u5230\u53f3\u786e\u5b9a\u7b2c\u4e00\u4e2a\u4f4d\u548c\u4e3a 1 \u7684\u4f4d\uff0c\u7136\u540e\u627e\u8be5\u4f4d\u6570\u5b57\u4e3a 1 \u7684\u5806\uff0c\u4ece\u4e2d\u53d6\u8d70\u4e00\u4e9b\u786c\u5e01\u4f7f\u5f97\u72b6\u6001\u53d8\u6210\u5b89\u5168\u72b6\u6001
python\u5b9e\u73b0
\u5728\u7ebf\u8fd0\u884c
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/04-%E4%BC%AA%E5%B8%81%E8%BE%A8%E8%AF%86/","title":"\u4f2a\u5e01\u8fa8\u8bc6","text":"\u540e\u4e00\u6b21\u79f0\u91cf\u4f9d\u8d56\u4e8e\u4e4b\u524d\u7684\u79f0\u91cf\u7ed3\u679c\u7684\u65b9\u6848\u79f0\u4e3a\u81ea\u9002\u5e94\u7684,\u5426\u5219\u79f0\u4e3a\u975e\u81ea\u9002\u5e94\u7684
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/04-%E4%BC%AA%E5%B8%81%E8%BE%A8%E8%AF%86/#12","title":"12 \u4e2a\u786c\u5e01\u4e2d\u6709\u4e00\u4e2a\u5047\u5e01,\u4e0d\u77e5\u8f7b\u91cd,\u7528\u4e09\u6b21\u79f0\u91cf\u627e\u51fa\u8fd9\u4e2a\u5047\u5e01","text":"\u5bf9\u4efb\u610f\u6574\u6570\\(w>2\\):\u82e5\\(3\\leq n \\leq\\frac{3^w-3}{2}\\),\u5219\u5b58\u5728\u975e\u81ea\u9002\u5e94\u7684\u79f0\u91cf\u65b9\u6848,\u4f7f\u7528 w \u6b21\u79f0\u91cf\u53ef\u4ee5\u4ece n \u679a\u786c\u5e01\u4e2d\u786e\u5b9a\u4f2a\u5e01\u5e76\u5224\u5b9a\u8f7b\u91cd,\u4e0d\u7136\u5219\u4e0d\u5b58\u5728
\u901a\u8fc7\u6784\u9020 Dyson \u96c6\u6765\u786e\u5b9a\u6bcf\u4e2a\u786c\u5e01\u5728\u6bcf\u6b21\u79f0\u91cf\u4e2d\u7684\u4f4d\u7f6e
RESOURES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/","title":"\u79d8\u5bc6\u5171\u4eab","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#shamir","title":"Shamir\u95e8\u9650\u673a\u5236","text":"\u5f88\u7b80\u5355,\u5b9e\u9645\u4e0a\u5c31\u662f\u6c42\u89e3\u7ebf\u6027\u65b9\u7a0b\u7ec4
\u5047\u8bbe\u6709\\(n\\)\u4e2a\u4eba,\u5e0c\u671b\\(t,(t<n)\\)\u4e2a\u4eba\u63d0\u4f9b\u4fe1\u606f\u7684\u65f6\u5019\u80fd\u5f97\u5230\u79d8\u5bc6,\u90a3\u5c31\u6784\u9020\u4e00\u4e2a\u6709\\(t\\)\u4e2a\u672a\u77e5\u6570\u7684\u591a\u9879\u5f0f, \u7136\u540e\u7ed9\u6bcf\u4e2a\u4eba\u4e00\u4e2a\u591a\u9879\u5f0f\u4e0a\u7684\u70b9,\u8fd9\u6837\u63d0\u4f9b\u4fe1\u606f\u7684\u4eba\u6570\u5927\u4e8et\u7684\u65f6\u5019,\u5c31\u53ef\u4ee5\u6c42\u89e3\u51fa\u591a\u9879\u5f0f,\u4ece\u800c\u5f97\u5230\u79d8\u5bc6.
\\(K\\)\u662f\u79d8\u5bc6,\\(t\\)\u662f\u95e8\u9650,\\(n\\)\u662f\u4eba\u6570,\u90a3\u4e48\u9009\u53d6 \\(t-1\\)\u4e2a\u6570\\(a_1,a_2,\\cdots,a_{t-1}\\),\u6784\u9020\u591a\u9879\u5f0f
\\[f(x)=K+a_1x+a_2x^2+\\cdots+a_{t-1}x^{t-1}\\] \u4fe1\u606f\u9009\u53d6\u4e3a\\((x_i,f(x_i))\\mod p\\),\u5176\u4e2d\\(p\\)\u662f\u7d20\u6570,\\(x_i\\)\u662f\u968f\u673a\u6570
(\u6216\u8005\u522b\u7684\u4e5f\u884c,1,2,3,\u9009\u62e9\u968f\u673a\u6570\u4e3b\u8981\u662f\u4e3a\u4e86\u8ba9\u89c4\u5f8b\u4e0d\u90a3\u4e48\u660e\u663e,\u53d6\u6a21\u611f\u89c9\u662f\u4e3a\u4e86\u8ba9\u6570\u5b57\u5c0f\u4e00\u70b9,\u4e0d\u53d6\u4e5f\u662f\u53ef\u4ee5\u7684)\n
\u8fd9\u6837\u628a\\(n\\)\u4e2a\u4e0d\u540c\u7684\u4fe1\u606f\u7ed9\u5230\\(n\\)\u4e2a\u4eba,\u7136\u540e\\(t\\)\u4e2a\u4eba\u63d0\u4f9b\u4fe1\u606f\u7684\u65f6\u5019,\u5c31\u53ef\u4ee5\u6c42\u89e3\u51fa\u591a\u9879\u5f0f,\u4ece\u800c\u5f97\u5230\u79d8\u5bc6.
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#_2","title":"\u4e2d\u56fd\u5269\u4f59\u5b9a\u7406","text":"\u7ed9\u4e00\u4e9b\u5b9a\u4e49:
\u6574\u9664: \\(a|b\\)\u8868\u793a\\(a\\)\u6574\u9664\\(b\\),\u5373\\(\\exists k\\in Z,s.t.\\;b=ak\\)
\u6700\u5927\u516c\u7ea6\u6570: \\(\\gcd(a,b)\\)\u8868\u793a\\(a\\)\u548c\\(b\\)\u7684\u6700\u5927\u516c\u7ea6\u6570
\u540c\u4f59: \\(a\\equiv b \\mod p\\)\u8868\u793a\\(a\\)\u548c\\(b\\)\u9664\u4ee5\\(p\\)\u7684\u4f59\u6570\u76f8\u7b49
\u9006\u5143: \u82e5\\(\\exists b\\in Z,s.t.\\;a\\cdot b\\equiv 1 \\mod p\\),\u79f0\\(a\\)\u6a21\\(p\\)\u53ef\u9006,\u5e76\u79f0\\(b\\)\u662f\\(a\\)\u6a21\\(p\\)\u7684\u9006\u5143,\u8bb0\u4e3a\\(a^{-1}\\)
\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b:\\(ax\\equiv b \\mod p\\)\u79f0\u4e3a\u6a21p\u7684\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b
\u65b9\u7a0b\u6709\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f:\\(\\gcd(a,p)|b\\) \u5f53\\(\\gcd(a,p)=1\\),\u65b9\u7a0b\u7684\u89e3\u662f\\(a^{-1}b\\),\u4e14\u5c0f\u4e8e\\(p\\)\u7684\u975e\u8d1f\u6574\u6570\u89e3\u662f\u552f\u4e00\u7684 \u4e2d\u56fd\u5269\u4f59\u5b9a\u7406
\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b\u7ec4 \\(x\\equiv a_j\\mod p_j,1\\leq j\\leq k\\)\u5c0f\u4e8e\\(p\\)\u7684\u89e3\u662f\u552f\u4e00\u7684: \\[ x = N_1N_1^{-1}a_1+\\cdots+N_kN_k^{-1}a_k \\] \u5176\u4e2d \\(p = p_1p_2\\cdots p_k,N_j = \\frac{p}{p_j},N_j^{-1}\\)\u662f\\(N_j\\)\u6a21\\(p_j\\)\u7684\u9006
\\(\\forall l\\in Z,x+lp\\)\u4e5f\u662f\u65b9\u7a0b\u7684\u89e3
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#asmuth-bloom","title":"Asmuth-Bloom\u95e8\u9650\u673a\u5236","text":"\u53c2\u8003\u8fd9\u4e2a\u8bba\u6587
\u592a\u590d\u6742\u4e86,\u5bf9\u7740\u770b\u5427
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/","title":"\u5b89\u5168\u89c2\u6f14","text":" \u5e7f\u573a\u67d0\u5904\u6b63\u5728\u8fdb\u884c\u4e00\u573a\u9732\u5929\u8868\u6f14\uff0c\u82e5\u5e72\u4eba\u5148\u540e\u5230\u8fbe\u9644\u8fd1 \u5e76\u9009\u62e9\u4e00\u4e2a\u5730\u70b9\u89c2\u770b\u8868\u6f14
\u89c2\u4f17\u9009\u62e9\u5730\u70b9\u7684\u8981\u6c42
\u4e0e\u821e\u53f0\u4e2d\u5fc3\u7684\u8ddd\u79bb\u4e0d\u5c0f\u4e8eL \u4e0e\u4e4b\u524d\u5230\u8fbe\u7684\u4efb\u4e00\u89c2\u4f17\u7684\u8ddd\u79bb\u4e0d\u5c0f\u4e8eY \u5728\u6ee1\u8db3\u4e0a\u8ff0\u8981\u6c42\u7684\u60c5\u51b5\u4e0b\uff0c\u89c2\u4f17\u9009\u62e9\u4e0e\u821e\u53f0\u4e2d\u5fc3\u8ddd\u79bb\u6700\u8fd1\u7684\u67d0\u4e2a\u70b9
\u6c42\u7b2cn\u4e2a\u5230\u8fbe\u7684\u89c2\u4f17\u4e0e\u821e\u53f0\u4e2d\u5fc3\u7684\u8ddd\u79bb\\(d_n\\)\u7684\u4f30\u8ba1
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/#_2","title":"\u4e0a\u754c\u4f30\u8ba1","text":"\u7b2c n \u4e2a\u4eba\u65e0\u6cd5\u9009\u5230\u5c0f\u4e8e\\(d_n\\)\u7684\u8ddd\u79bb:
\u4ee5 O \u4e3a\u5706\u5fc3,\u534a\u5f84\u4e3a\\(d_n\\)\u7684\u5706\u7684\u6240\u6709\u70b9\u5728\\(C,C_1\\cdots,c_{n-1}\\)\u5185
\\(\\pi d_n^2\\leq (n-1)\\pi r^2+\\pi L^2\\Rightarrow d_n\\leq\\sqrt{(n-1)r^2+L^2}\\)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/#_3","title":"\u4e0b\u754c\u4f30\u8ba1","text":" \u8bb0\u4ee5 \\(P_i\\) \u4e3a\u5706\u5fc3, \\(\\frac{r}{2}\\) \u4e3a\u534a\u5f84\u7684\u5706\u8bb0\u4e3a \\(Q_i\\) \u5706 \\(Q_1, Q_2, \\cdots, Q_n\\) \u4e24\u4e24\u4e92\u4e0d\u76f8\u4ea4 \u5706 \\(Q_1, Q_2, \\cdots, Q_n\\) \u5747\u5728\u4ee5 \\(O\\) \u4e3a\u5706\u5fc3\uff0c\u534a\u5f84\u4e3a \\(d_n+\\frac{r}{2}\\)\u7684\u5706\u5185 \\(\\(\\begin{aligned} & \\pi\\left(d_n+\\frac{r}{2}\\right)^2 \\geq n \\cdot \\pi\\left(\\frac{r}{2}\\right)^2 \\Rightarrow d_n \\geq\\left(\\frac{\\sqrt{n}}{2}-\\frac{1}{2}\\right) r \\\\ & L=10, r=1, n=1000 \\quad 15.31 \\leq d_n \\leq 33.15 \\end{aligned}\\)\\) RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/08-%E6%8B%9B%E8%81%98%E9%97%AE%E9%A2%98/","title":"\u62db\u8058\u95ee\u9898","text":"n\u4e2a\u6c42\u804c\u8005\u5e94\u8058.\u6309\u7167\u987a\u5e8f\u4f9d\u6b21\u9762\u8bd5,\u6bcf\u4e2a\u4eba\u9762\u8bd5\u7ed3\u675f\u540e\u9762\u8bd5\u5b98\u5fc5\u987b\u7acb\u9a6c\u51b3\u5b9a\u662f\u5426\u5f55\u7528\n\u4e00\u65e6\u5f55\u53d6\u4e00\u4e2a\u6c42\u804c\u8005,\u9762\u8bd5\u7acb\u9a6c\u7ed3\u675f\n\u73b0\u6c42\u4e00\u4e2a\u6700\u597d\u7684\u7b56\u7565.\u4f7f\u5f97\u5f55\u53d6\u6700\u597d\u7684\u6c42\u804c\u8005\u7684\u6982\u7387\u6700\u5927\n
\u6bd5\u5bfc\u79d1\u666e \u767e\u5ea6\u767e\u79d1
\u6570\u5b66\u63cf\u8ff0
\u53e4\u5178\u6982\u578b
\\(p_n(s):\\)\u91c7\u7528\u7b56\u7565\\(s\\)\u5f55\u7528\u5230\u7b2c\u4e00\u540d\u7684\u6982\u5ff5
\\(p_n(1)=p(A_1=1)=\\frac{1}{n}\\) \\(p_n^k(s):\\)\u91c7\u7528\u7b56\u7565\\(s\\)\u5f55\u7528\\(A_k\\),\u4e14\\(A_k\\)\u4e3a\u7b2c\u4e00\u540d\u7684\u6982\u7387
\u6700\u4f18\u7b56\u7565:\u4f7f\u5f97\\(p_n(s)=\\sum\\limits_{k=s}^np_n^k(s)=\\frac{s-1}{n}\\sum\\limits_{k=s-1}^{n-1}\\frac{1}{k}\\)\u5c3d\u53ef\u80fd\u5927
\\(s^*=\\min\\{s|\\sum\\limits_{k=s}^{n-1}\\frac{1}{k}<1\\}\\)
\\(s^*\\)\u7684\u4f30\u8ba1\u548c\u6e10\u8fdb\u6027\u8d28
\\(p_n\\left(s^*\\right)\\) \u7684\u503c\u4e0e\u6e10\u8fd1\u6027\u8d28
\\(p_n\\left(s^*\\right)=\\frac{s^*-1}{n} \\sum_{k=s^*-1}^{n-1} \\frac{1}{k}\\) \\(\\ln \\frac{n}{s^*-1}=\\int_{s^*-1}^n \\frac{1}{x} d x \\leq \\sum_{k=s^*-1}^{n-1} \\frac{1}{k} \\leq \\int_{s^*-\\frac{1}{2}}^{n-\\frac{1}{2}} \\frac{1}{x} d x=\\ln \\frac{2 n-1}{2 s^*-1}\\) \\(\\lim\\limits_{n \\rightarrow \\infty} p_n\\left(s^*\\right)=\\frac{1}{e}\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/08-%E6%8B%9B%E8%81%98%E9%97%AE%E9%A2%98/#-","title":"-","text":""},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/","title":"\u738b\u9053\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5","text":""},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/","title":"\u7ebf\u6027\u8868","text":"def\uff1a\u7ebf\u6027\u8868\u662f\u5177\u6709\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684n\u4e2a\u6570\u636e\u5143\u7d20\u7684\u6709\u9650\u5e8f\u5217\uff0cn\u4e3a\u8868\u957f\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_2","title":"\u7ebf\u6027\u8868\u7684\u987a\u5e8f\u5b58\u50a8\u53c8\u53eb\u987a\u5e8f\u8868","text":"i def\uff1a\u7528\u4e00\u7ec4\u5730\u5740\u8fde\u7eed\u7684\u5b58\u50a8\u5355\u5143\u4f9d\u6b21\u5b58\u50a8\u7ebf\u6027\u8868\u4e2d\u7684\u6570\u636e\u5143\u7d20
note:\u987a\u5e8f\u8868\u7684\u5143\u7d20\u5728\u903b\u8f91\u548c\u7269\u7406\u4e0a\u90fd\u662f\u76f8\u90bb\u7684(\u903b\u8f91\u987a\u5e8f\u548c\u5b58\u50a8\u7684\u7269\u7406\u987a\u5e8f\u76f8\u540c)
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_3","title":"\u4f18\u70b9","text":"1.\u53ef\u8fdb\u884c\u968f\u673a\u8bbf\u95ee\uff0c\u53ef\u4ee5\u5728O(1)\u7684\u65f6\u95f4\u4e2d\u627e\u5230\u5143\u7d20\n2.\u5b58\u50a8\u5bc6\u5ea6\u9ad8,\u6bcf\u4e2a\u7ed3\u70b9\u53ea\u5b58\u50a8\u6570\u636e\u5143\u7d20(\u611f\u89c9\u662f\u4e0e\u94fe\u8868\u8fdb\u884c\u6bd4\u5bf9,\u94fe\u8868\u8fd8\u9700\u8981\u6307\u9488\u57df)\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_4","title":"\u7f3a\u70b9","text":"1.\u5143\u7d20\u7684\u63d2\u5165\u548c\u5220\u9664\u9700\u8981\u79fb\u52a8\u5927\u91cf\u7684\u5143\u7d20,\u5e73\u5747O(n/2) 2.\u9700\u8981\u4e00\u6bb5\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4,\u4e0d\u591f\u7075\u6d3b
note:\u987a\u5e8f\u8868\u4e00\u5b9a\u8981\u8fde\u7eed\u5b58\u50a8,\u4f46\u662f\u6570\u7ec4\u4e0d\u4e00\u5b9a
\u53ef\u4ee5\u53d1\u73b0,\u6570\u7ec4\u5143\u7d20\u90fd\u88ab\u521d\u59cb\u5316\u4e3a 1,\u4f46\u662f\u5982\u679c index1-index2 \u4e24\u4e2a\u5730\u65b9\u7684\u5143\u7d20\u88ab\u4fee\u6539,\u90a3\u4e48\u4e2d\u95f4\u7684\u5143\u7d20\u4e5f\u4f1a\u88ab\u968f\u673a\u6539\u53d8
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_5","title":"\u94fe\u8868:\u7ebf\u6027\u8868\u7684\u94fe\u5f0f\u8868\u793a","text":"\u5355\u94fe\u8868
//single node\nstruct Node{\n Comparable value;\n Node* next;\n}\n
\u53cc\u94fe\u8868 // double node\nstruct Node{\n Comparable value;\n Node* prior,* next;\n}\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_6","title":"\u987a\u5e8f\u8868\u548c\u94fe\u8868\u7684\u6bd4\u8f83:","text":"1.\u5b58\u53d6(\u8bfb\u5199\u65b9\u6cd5):\n \u987a\u5e8f\u8868\u53ef\u4ee5\u987a\u5e8f\u5b58\u53d6\u4e5f\u53ef\u4ee5\u968f\u673a\u5b58\u53d6,\u94fe\u8868\u53ea\u80fd\u987a\u5e8f\u5b58\u53d6\n 2.\u903b\u8f91\u7ed3\u6784\u548c\u7269\u7406\u7ed3\u6784\n \u987a\u5e8f\u8868\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7269\u7406\u7ed3\u6784\u662f\u7edf\u4e00\u7684,\u94fe\u8868\u5219\u4e0d\u662f,\u903b\u8f91\u76f8\u90bb\u7684\u5143\u7d20\u7269\u7406\u4e0a\u4e0d\u4e00\u5b9a\u76f8\u90bb\n 3.\u67e5\u627e,\u63d2\u5165\u548c\u5220\u9664\n \u6309\u503c\u67e5\u627e:\u5982\u679c\u5143\u7d20\u65e0\u5e8f\u4e24\u8005\u90fd\u662fO(n),\u6709\u5e8f\u987a\u5e8f\u8868\u53ef\u5230 O(logn)\n \u6309\u5e8f\u67e5\u627e:\u987a\u5e8f\u8868O(1),\u94fe\u8868O(n)\n \u63d2\u5165\u5220\u9664:\u987a\u5e8f\u8868\u9700\u8981\u79fb\u52a8\u5e73\u5747 \u4e00\u822c\u5143\u7d20,\u94fe\u8868\u53ea\u9700\u66f4\u6539\u6307\u9488\n 4.\u94fe\u8868\u66f4\u4e3a\u7075\u6d3b,\u4f46\u662f\u5b58\u50a8\u5bc6\u5ea6\u66f4\u4f4e(\u8fd8\u9700\u8981\u5b58\u50a8\u6307\u9488)\n
"},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/","title":"\u673a\u5668\u5b66\u4e60","text":" \u5434\u6069\u8fbe\u673a\u5668\u5b66\u4e60
\u9ec4\u6d77\u5e7f\u4e2d\u6587\u7b14\u8bb0github
blibli \u89c6\u9891\u5730\u5740
"},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/","title":"\u5f15\u8a00(introduction)","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#_1","title":"\u4ec0\u4e48\u662f\u673a\u5668\u5b66\u4e60","text":" \u5728\u8fdb\u884c\u7279\u5b9a\u7f16\u7a0b\u7684\u60c5\u51b5\u4e0b\uff0c\u7ed9\u4e88\u8ba1\u7b97\u673a\u5b66\u4e60\u80fd\u529b\u7684\u9886\u57df "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#_2","title":"\u7b97\u6cd5\u7c7b\u578b","text":" \u76d1\u7763\u5b66\u4e60 \u76d1\u7763\u5b66\u4e60\u6307\u7684\u5c31\u662f\u6211\u4eec\u7ed9\u5b66\u4e60\u7b97\u6cd5\u4e00\u4e2a\u6570\u636e\u96c6\u3002\u8fd9\u4e2a\u6570\u636e\u96c6\u7531\u201c\u6b63\u786e\u7b54\u6848\u201d\u7ec4\u6210\u3002 \u65e0\u76d1\u7763\u5b66\u4e60 \u53ea\u63d0\u4f9b\u6570\u636e\u96c6,\u4f46\u662f\u6570\u636e\u96c6\u6ca1\u6709\u6807\u7b7e \u6bd4\u5982\u901a\u8fc7\u524d\u51e0\u5e74\u7684\u623f\u4ef7\u53bb\u9884\u6d4b\u660e\u5e74\u7684\u623f\u4ef7,\u6211\u4eec\u5e76\u4e0d\u77e5\u9053\u660e\u5e74\u623f\u4ef7\u5230\u5e95\u662f\u591a\u5c11 \u805a\u96c6\u7b97\u6cd5:\u628a\u6570\u636e\u96c6\u5224\u5b9a\u4e3a\u591a\u4e2a\u6570\u636e\u65cf\u7684\u5e76 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#note","title":"note","text":" \u56de\u5f52\u95ee\u9898:\u63a8\u6d4b\u8fde\u7eed\u7a7a\u95f4\u4e2d\u7684\u7ed3\u679c \u6bd4\u5982\u56de\u5f52\u5206\u6790 \u5206\u7c7b\u95ee\u9898:\u63a8\u6d4b\u79bb\u6563\u7a7a\u95f4\u4e2d\u7684\u7ed3\u679c \u6bd4\u5982\u80cc\u5305\u95ee\u9898 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/","title":"\u5355\u53d8\u91cf\u7ebf\u6027\u56de\u5f52","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_2","title":"\u6a21\u578b\u8868\u793a","text":" \\(m\\)\u8868\u793a\u8bad\u7ec3\u96c6\u7684\u5927\u5c0f \\(x\\)\u8868\u793a\u7279\u5f81/\u8f93\u5165\u53d8\u91cf \\(y\\)\u8868\u793a\u76ee\u6807\u53d8\u91cf/\u8f93\u51fa\u53d8\u91cf \\((x,y)\\)\u8868\u793a\u8bad\u7ec3\u96c6\u7684\u4e00\u4e2a\u5b9e\u4f8b \\((x^{(i)},y^{(i)})\\)\u8868\u793a\u7b2c\\(i\\)\u4e2a\u89c2\u5bdf\u5b9e\u4f8b \\(h\\)\u4ee3\u8868\u7b97\u6cd5\u7684\u89e3\u51b3\u65b9\u6848\u6216\u8005\u8bf4\u662f\u8bad\u7ec3\u7ed3\u679c \u8003\u8651\\(h(x)=\\theta_0+\\theta_1x\\) \u53ea\u6709\u4e00\u4e2a\u8f93\u5165\u53d8\u91cf,\u56e0\u6b64\u8fd9\u662f\u4e00\u4e2a\u5355\u53d8\u91cf\u7ebf\u6027\u56de\u5f52 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_3","title":"\u4ee3\u4ef7\u51fd\u6570","text":" \u5efa\u6a21\u8bef\u5dee: \\(h(x^{(i)})-y^{(i)}\\) \\(J(\\theta_0,\\theta_1)=\\frac{1}{2m}\\sum\\limits_{i=1}^{m}(h(x^{(i)})-y^{(i)})^2\\) \u4ee3\u4ef7\u51fd\u6570\u7684\u76ee\u6807\u662f\u4f7f\u5f97\\(J(\\theta_0,\\theta_1)\\)\u6700\u5c0f \u4ee3\u4ef7\u51fd\u6570\u4e5f\u88ab\u79f0\u4f5c\u5e73\u65b9\u8bef\u5dee\u51fd\u6570,\u6216\u8005\u5e73\u65b9\u4ee3\u4ef7\u8bef\u5dee\u51fd\u6570 \u4ee3\u4ef7\u51fd\u6570\u662f\u4e00\u4e2a\u51f8\u51fd\u6570,\u56e0\u6b64\u53ea\u6709\u4e00\u4e2a\u6700\u5c0f\u503c "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_4","title":"\u68af\u5ea6\u4e0b\u964d","text":" \u68af\u5ea6\u4e0b\u964d\u662f\u4e00\u4e2a\u6c42\u51fd\u6570\u6700\u5c0f\u503c\u7684\u529e\u6cd5 \u5f53\u7136\u4e5f\u53ef\u4ee5\u6c42\u6700\u5927\u503c,\u53ea\u8981\u4ee4\\(g=-f\\) \u601d\u60f3:\u5c31\u662f\u51fd\u6570\u6cbf\u7740\u68af\u5ea6\u7684\u53cd\u65b9\u5411\u8d70\u662f\u4e0b\u964d\u6700\u5feb\u7684,\u5728\u6570\u5b66\u5206\u6790\u4e2d\u6211\u4eec\u5b9a\u4e49\\(grad(f)=\\nabla f=\\frac{\\partial f}{\\partial x_1}\\hat{i}+\\frac{\\partial f}{\\partial x_2}\\hat{j}+\\frac{\\partial f}{\\partial x_3}\\hat{k}\\) \u53ef\u80fd\u9677\u5165\u5c40\u90e8\u6700\u4f18 \u6279\u91cf\u68af\u5ea6\u4e0b\u964d\u7b97\u6cd5(batch gradint descent) \\(\\theta_j:=\\theta_j-\\alpha\\frac{\\partial}{\\partial\\theta_j}J(\\theta_0,\\theta_1)\\),\u5176\u4e2d\\(\\alpha\\)\u662f\u5b66\u4e60\u7387,\u63a7\u5236\u68af\u5ea6\u4e0b\u964d\u7684\u901f\u5ea6. \u8fd9\u91cc\u53ef\u4ee5\u7528 Euler \u6298\u7ebf\u7684\u601d\u60f3\u7406\u89e3,\u5b9e\u9645\u4e0a\u5c31\u662f\u5f80\u5bfc\u6570\u65b9\u5411\u8d70\u4e86\u4e00\u6b65,\u6b65\u957f\u7531\\(\\alpha\\)\u51b3\u5b9a \u6240\u6709\u7684\u53c2\u6570\u9700\u8981\u540c\u6b65\u66f4\u65b0 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_5","title":"\u68af\u5ea6\u4e0b\u964d\u7684\u7ebf\u6027\u56de\u5f52","text":" \\(\\theta_0:=\\theta_0-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^{m}(h(x^{(i)})-y^{(i)})\\) \\(\\theta_1:=\\theta_1-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^{m}((h(x^{(i)})-y^{(i)})x^{(i)})\\) "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/03-%E7%BA%BF%E6%80%A7%E4%BB%A3%E6%95%B0%E5%9B%9E%E9%A1%BE/","title":"\u7ebf\u6027\u4ee3\u6570\u56de\u987e","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/","title":"\u591a\u53d8\u91cf\u7ebf\u6027\u56de\u5f52","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_2","title":"\u591a\u7ef4\u7279\u5f81","text":" \\(X=(x_1,x_2,...,x_n)\\) \\(n\\) \u4ee3\u8868\u7279\u5f81\u7684\u6570\u76ee \\(x^{(i)}\\) \u4ee3\u8868\u7b2c \\(i\\) \u4e2a\u8bad\u7ec3\u6837\u672c,\u4e5f\u5c31\u662f\u7279\u5f81\u77e9\u9635\u7684\u7b2c \\(i\\) \u884c \\(x_j^{(i)}\\) \u4ee3\u8868\u7b2c \\(i\\) \u4e2a\u8bad\u7ec3\u6837\u672c\u7684\u7b2c \\(j\\) \u4e2a\u7279\u5f81\u503c \u5047\u8bbe\\(h_\\theta(x)=\\theta_0+\\theta_1x_1+\\theta_2x_2+...+\\theta_nx_n\\),\u5f15\u5165\\(x_0=1\\):\u5219\\(h\\)\u53ef\u4ee5\u8868\u793a\u4e3a\\(h_\\theta(x)=\\theta^TX\\) "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_3","title":"\u591a\u53d8\u91cf\u68af\u5ea6\u4e0b\u964d","text":" \u4ee3\u4ef7\u51fd\u6570\\(J(\\theta_0,\\theta_1,\\cdots,\\theta_n)=\\frac{1}{2m}\\sum_{i=1}^{m}(h_\\theta(x^{(i)})-y^{(i)})^2\\) \u5176\u4e2d\\(h_\\theta= \\theta^TX=\\theta_0x_0+\\theta_1x_1+\\cdots+\\theta_nx_n\\) \u7b97\u6cd5:\\(\\theta_j =\\theta_j-\\alpha\\frac{\\partial}{\\partial \\theta_j}J(\\Theta)\\) \u5373:\\(\\theta_j = \\theta_j-\\alpha\\frac{\\partial}{\\partial\\theta_j}\\frac{1}{2m}\\sum\\limits_{i=1}^m(h_\\theta(x^{(i)})-y^{(i)})^2=\\theta_j-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^m(h_\\theta(x^{(i)})-y^{(i)})x_j^{(i)}\\) "},{"location":"Notebook/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BB%84%E6%88%90%E5%8E%9F%E7%90%86/","title":"\u738b\u9053\u8ba1\u7b97\u673a\u7ec4\u6210","text":""},{"location":"Notebook/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BB%84%E6%88%90%E5%8E%9F%E7%90%86/1-%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%B3%BB%E7%BB%9F%E6%A6%82%E8%BF%B0/","title":"\u8ba1\u7b97\u673a\u7cfb\u7edf\u6982\u8ff0","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/","title":"\u968f\u673a\u8fc7\u7a0b","text":"\u82cf\u4e2d\u6839
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/01-%E5%88%9D%E7%AD%89%E6%A6%82%E7%8E%87%E8%AE%BA/","title":"\u521d\u7b49\u6982\u7387\u8bba","text":"Bernoulli\u5206\u5e03,Poisson\u5206\u5e03,\u6b63\u6001\u5206\u5e03\u53ef\u52a0\u6027
1.\\(X\\sim B(n,p),Y\\sim V(m,p)\\Rightarrow X+Y\\sim B(m+n,p)\\)
2.\\(X\\sim P(\\lambda),Y\\sim P(\\mu)\\Rightarrow X+Y\\sim P(\\lambda+\\mu)\\)
3.\\(X\\sim N(\\mu_1,\\sigma_1^2),Y\\sim N(\\mu_2,\\sigma_2^2)\\Rightarrow X+Y\\sim N(\\mu_1+\\mu_2,\\sigma_1^2+\\sigma_2^2)\\)
\u5047\u8bbe\\((X,Y)\\sim N(\\mu_1,\\mu_2,\\sigma_1^2,\\sigma_2^2,\\rho)\\)
1.\\(X\\sim N(\\mu_1,\\sigma_1^2),Y\\sim N(\\mu_2,\\sigma_2^2)\\)
2.\u7ed9\u5b9a\\(X=x\\),\u5219\\(Y\\sim N(\\mu_2+\\rho\\frac{\\sigma_2}{\\sigma_1}(x-\\mu_1),\\sigma_2^2(1-\\rho^2))\\)
3.X,Y\u72ec\u7acb\\(\\Leftrightarrow \\rho=0\\)
4.\u7ed9\u5b9a\\(a,b\\in R,aX+bY\\sim N(\\mu,\\sigma^2)\\)
\\(\\Rightarrow \\mu = a\\mu_1+b\\mu_2,\\sigma^2=a^2\\sigma_1^2+b^2\\sigma_2^2+2ab\\rho\\sigma_1\\sigma_2\\)
k\u9636\u77e9
\\(EX^k<\\infty\\Rightarrow EX^k\\)\u7684\\(X\\)\u7684\\(k\\)\u9636\u77e9
\\(X\\sim P(\\lambda)\\) \\(\\Rightarrow\\) \\(EX=\\lambda,EX^2=\\lambda+\\lambda^2\\)
\\(EX(X-1)\\cdots(X-k+1)=\\lambda^k\\)
\u7531\u6b64\u53ef\u4ee5\u6c42\u51fa\\(P(\\lambda)\\)\u7684\u5404\u9636\u77e9
\\(X\\sim N(0,\\sigma^2)\\) \\(\\Rightarrow\\) \\(m_{2k}=(zk-1)!!\\sigma^{2k},m_{2k-1}=0\\)
\u77e9\u6bcd\u51fd\u6570 \\(iG_X(t)=Ee^{tX},|t|<|t_0|:Ee^{tX}<\\infty,|t|<t_0\\)
\\(X\\sim P(\\lambda)\\) \\(\\Rightarrow\\) \\(G_X(t)=e^{\\lambda(e^t-1)}\\)
\\(X\\sim N(0,\\sigma^2)\\) \\(\\Rightarrow\\) \\(G_X(t)=e^{\\frac{1}{2}\\sigma^2t^2}\\)
Chebyshev\u4e0d\u7b49\u5f0f
\\(P(|X-\\mu|\\geq \\varepsilon)\\leq \\frac{\\sigma^2}{\\varepsilon^2}\\)
\u63a8\u5e7f\u4e3a:\\(f:R\\to R^+\\)\u4e3a\u975e\u8d1f\u5355\u8c03\u4e0d\u51cf\u51fd\u6570,\\(Ef(X)<\\infty\\),\u90a3\u4e48\\(P(X>\\epsilon)\\leq \\frac{Ef(X)}{f(\\epsilon)}\\))
\u534f\u65b9\u5dee\u548c\u76f8\u5173\u7cfb\u6570
\\(Cov(X,Y)=E(X-\\mu_X)(Y-\\mu_Y)\\)
\\(\\rho(X,Y)=\\frac{Cov(X,Y)}{\\sigma_X\\sigma_Y}\\)=\\(\\frac{Cov(X,Y)}{\\sqrt{Var(X)Var(Y)}}\\)
\\((X,Y)\\)\u7684\u6570\u5b57\u7279\u5f81\u5305\u62ec\u5747\u503c\u5411\u91cf\u548c\u534f\u65b9\u5dee\u77e9\u9635
\\(\\mu=(EX,EY)\\),\\(\\Sigma=\\begin{pmatrix}Var(X)&Cov(X,Y)\\\\Cov(Y,X)&Var(Y)\\end{pmatrix}\\)
\u7279\u5f81\u51fd\u6570
\\(\\phi_X(t)=Ee^{itX}\\)=\\(\\int_{-\\infty}^{\\infty}e^{itx}dF_X(x),t\\in R\\)
\u5bc6\u5ea6\u51fd\u6570\\(f_X(x)=\\frac{1}{2\\pi}\\int_{-\\infty}^{\\infty}e^{-itx}\\phi_X(t)dt\\)
\u5404\u79cd\u6536\u655b
\u6781\u9650\u5b9a\u7406 1
\\(\\{\\xi_n\\}\\)\u72ec\u7acb\u540c\u5206\u5e03,\\(P(\\xi_n=1)=p,P(\\xi_n=0)=1-p\\),\u4ee4\\(S_n=\\sum\\limits_{i=1}^n\\xi_i\\)\u90a3\u4e48:
1.\\((Bernoulli):\\frac{S_n}{n}\\overset{p}\\to p\\)
2.\\((De Moivre-Laplace):\\frac{S_n-np}{\\sqrt{np(1-p)}}\\overset{d}\\to N(0,1)\\)
3.\\((Borel):\\frac{S_n}{n}\\to p,s.e.\\)
Poisson\u6781\u9650\u5b9a\u7406
\\(\\forall n,\\{\\xi_{n,k}\\}_{k=1}^n\\)\u72ec\u7acb\u540c\u5206\u5e03,\\(P(\\xi_{n,k}=1)=p_n,P(\\xi_{n,k}=0)=1-p_n,1\\leq k\\leq n\\), \u82e5:\\(n\\to\\infty\\)\u65f6,\\(p_n\\to\\infty,np_n\\to\\lambda\\in R^+\\),\u4ee4\\(S_n=\\sum\\limits_{k=1}^n\\xi_{n,k}\\),\u90a3\u4e48:
\\[S_n\\overset{d}\\to \\mathcal{P}(\\lambda)\\] \\(\\{\\xi_n\\}\\)\u72ec\u7acb\u540c\u5206\u5e03,\u4ee4\\(S_n=\\sum\\limits_{i=1}^n\\xi_i\\)\u90a3\u4e48:
1.\\((Khintchine):\\frac{S_n}{n}\\overset{p}\\to \\mu,a.e.\\) \\(\\iff\\) \\(E|\\xi_1|<\\infty,E\\xi=\\mu\\)
2.\\((Feller-Levy):\\frac{S_n}{\\sqrt{n\\sigma^2}}\\overset{d}\\to N(0,1)\\) \\(\\iff\\) \\(E\\xi_n=0,Var\\xi_n=E\\xi_n^2=\\sigma^2\\)
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/","title":"\u968f\u673a\u8fc7\u7a0b\u7684\u57fa\u672c\u6982\u5ff5","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_2","title":"\u968f\u673a\u8fc7\u7a0b\u7684\u5b9a\u4e49","text":"\u6982\u7387\u7a7a\u95f4\\((\\Omega,\\mathcal{A},P)\\)\u4e0a\u7684\u968f\u673a\u8fc7\u7a0b\u662f\u4e00\u65cf\u968f\u673a\u53d8\u91cf\\(X(\\omega,t):\\Omega\\to\\epsilon,t\\in T\\)\uff0c\u5176\u4e2d\\(T\\)\u79f0\u4e3a\u65f6\u95f4\u53c2\u6570\u7a7a\u95f4,\\(\\epsilon\\) \u79f0\u4e3a\u72b6\u6001\u7a7a\u95f4
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_3","title":"\u5747\u503c\u51fd\u6570","text":"\u82e5\\(\\forall t \\in T,E|X(t)|<\\infty\\)\uff0c\u5219\u79f0\\(\\mu_X(t)=EX(t),t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u7684\u5747\u503c\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_4","title":"\u81ea\u534f\u65b9\u5dee\u51fd\u6570","text":"\u82e5\\(\\forall t\\in T,E|X(t)|<\\infty\\)\uff0c\u5219\u79f0\\(\\sigma_X^2(t)=Var(X(t)),t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u7684\u65b9\u5dee\u51fd\u6570
\\(r_X(s,t)=E(X(t)X(s)),s,t\\in T\\)\u4e3a X \u7684\u81ea\u76f8\u5173\u51fd\u6570
\\(Cov(X(t),X(s))=E(X(t)X(s))-EX(t)EX(s)=r_X(s,t)-\\mu_X(s)\\mu_X(t)\\)\u4e3a\u81ea\u534f\u65b9\u5dee\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_5","title":"\u4e92\u76f8\u5173\u51fd\u6570","text":"\\(r_{X,Y}(s,t)=E(Y(t)X(s)),s,t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u548c\\(Y(t)\\)\u7684\u4e92\u76f8\u5173\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_6","title":"\u5bbd\u5e73\u7a33\u8fc7\u7a0b(\u5f31\u5e73\u7a33\u8fc7\u7a0b)","text":"\u82e5\\(\\forall t\\in T,E(X(t))^2<\\infty\\)
\\(\\mu_X(t)=\\mu,\\forall t\\in T\\)
\\(r_X(s,t)=\\tau_X(s-t)\\;,\\forall s,t\\in T\\),\u5176\u4e2d\\(\\tau_X:R\\to R\\)
\u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u5bbd\u5e73\u7a33\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_7","title":"\u4e25\u5e73\u7a33\u8fc7\u7a0b","text":"\u82e5\\(\\forall k\\geq 1,t_1,t_2,\\cdots,t_k\\in T,t\\in T\\)
\\[(X(t_1+t),X(t_2+t),\\cdots,X(t_k+t))\\overset{d}{=}(X(t_1),X(t_2),\\cdots,X(t_k))\\] \u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u4e25\u5e73\u7a33\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_8","title":"\u72ec\u7acb\u589e\u91cf\u8fc7\u7a0b","text":"\u82e5\\(\\forall t_1<t_2<\\cdots<t_n\\),\u968f\u673a\u53d8\u91cf\\(X(t_1),X(t_2)-X(t_1),\\cdots,X(t_n)-X(t_{n-1})\\)\u76f8\u4e92\u72ec\u7acb\uff0c\u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u72ec\u7acb\u589e\u91cf\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/","title":"Poisson \u8fc7\u7a0b","text":" \u7528\\(N(t)\\)\u8868\u793a\u65f6\u95f4(0,t]\u4e2d\u4e8b\u4ef6\u53d1\u751f\u7684\u6b21\u6570,\\(\\lambda\\)\u662f\u5355\u4f4d\u65f6\u95f4\u53d1\u751f\u7684\u4e8b\u4ef6\u6570,\\(S_i\\)\u8868\u793a\u7b2ci\u6b21\u4e8b\u4ef6\u53d1\u751f\u7684\u65f6\u95f4 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_1","title":"Poisson\u5206\u5e03","text":" \\[\\forall t>0,P(N(t)=k)=\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t},k\\in N\\] "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_1","title":"\u7279\u6027","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#1entlambda-t","title":"1.\\(E(N(t))=\\lambda t\\)","text":"\u8bc1\u660e\u5f88\u7b80\u5355\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#2varntlambda-t","title":"2.\\(Var(N(t))=\\lambda t\\)","text":"\u8bc1\u660e\u4e5f\u5f88\u7b80\u5355\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#3","title":"3.\u81ea\u76f8\u5173\u51fd\u6570","text":" \\[r_N(s,t)=E(N(s)N(t))=\\lambda^2st+\\lambda s\\] <\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u5173\u4e8e s,t \u4e0d\u5bf9\u79f0?> "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#4","title":"4.\u81ea\u534f\u65b9\u5dee\u51fd\u6570","text":" \\[Cov(s,t)=E(N(s)N(t))-E(N(s))E(N(t))=\\lambda s\\] <\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u5173\u4e8e s,t \u4e0d\u5bf9\u79f0?>
\u4e8b\u5b9e\u4e0a\u8fd9\u4e5f\u53ef\u4ee5\u770b\u505a\u4e00\u79cd\u5bf9\u79f0,min{s,t} = min{t,s} = s
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_2","title":"Poisson\u6d41","text":" \\(N(t)\\sim \\mathcal{P}(\\lambda t)\\),\u5219\\(N(t)\\)\u662f\u4e00\u4e2aPoisson\u6d41
\u8003\u5bdf\u65f6\u95f4\u53d1\u751f\u7684\u65f6\u95f4\u7684\u5206\u5e03,\u4e5f\u5c31\u662f\\(S_i\\)\u7684\u5206\u5e03
\\(\\forall t>0,S_>t\\iff N(t)=0\\),\u90a3\u4e48 \\(P(S_1>t)=P(N(t)=0)=e^{-\\lambda t}\\),\u4ece\u800c\\(S_1\\sim \\mathcal{E}(\\lambda)\\) \u7b2c\u4e00\u4e2a\u5230\u8fbe\u7684\u65f6\u523b\u670d\u4ece\u53c2\u6570\u4e3a\\(\\lambda\\)\u7684\u6307\u6570\u5206\u5e03
\u5bf9\u4e8e\\(n\\geq 1\\),\\(S_n>t\\iff N(t)\\leq n-1\\),\u90a3\u4e48\\(P(S_n>t)=P(N(t)\\leq n-1)=\\sum\\limits_{k=0}^{n-1}\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t},\\)
\u4ece\u800c\u6709\\(P(S_n\\leq t)=1-\\sum\\limits_{k=0}^{n-1}\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t}\\)
\\(P_{S_n}=\\frac{\\lambda^nt^{n-1}}{(n-1)!}e^{-\\lambda t},t>0\\) (gamma \u5206\u5e03) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_2","title":"\u65f6\u95f4\u95f4\u9694","text":" \u82e5\u5b9a\u4e49\\(X_i=S_i-S_{i-1}\\),\u5219\\(X_i\\)\u662f\u72ec\u7acb\u540c\u5206\u5e03\u7684\u6307\u6570\u5206\u5e03,\u53c2\u6570\u4e3a\\(\\lambda\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_3","title":"Poisson \u53ef\u52a0\u6027(\u6309\u6982\u5ff5\u53ef\u5206)","text":" \\(N_1(t)\\sim \\mathcal{P}(\\lambda t),N_2(t)\\sim \\mathcal{P}(\\mu t)\\),\u4e14\\(N_1(t),N_2(t)\\)\u76f8\u4e92\u72ec\u7acb,\u5219\\(N_1(t)+N_2(t)\\sim \\mathcal{P}((\\lambda+\\mu)t)\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_3","title":"\u5230\u8fbe\u65f6\u523b\u7684\u6761\u4ef6\u5206\u5e03","text":" \u89e3\u51b3\u7684\u95ee\u9898\u662f,\u5df2\u77e5\\(N(t)=n\\),\u6c42\\(S_1,S_2,\\cdots,S_n\\)\u7684\u8054\u5408\u5206\u5e03
1.\\(N(t)=0\\)\u7684\u60c5\u51b5\u662f\u5e73\u51e1\u7684,\\(N(t)=1\\)\u65f6,\\(S_1\\)\u53ef\u4ee5\u5728\\((0,t]\\)\u4e2d\u4efb\u610f\u53d6\u503c,\u6240\u4ee5\\(S_1\\)\u7684\u5206\u5e03\u662f\u5747\u5300\u5206\u5e03
2.\\(N(t)=2\\) \u7684\u60c5\u51b5\u4e0b,\\(S_,S_2\\) \u4e5f\u76f8\u4e92\u72ec\u7acb(\u82e5\u4e0d\u7ea0\u7ed3\u987a\u5e8f,\u4e5f\u5c31\u662f\u4e8b\u4ef6 1,2\u53d1\u751f\u7684\u65f6\u95f4),\u56e0\u6b64\u968f\u673a\u53d6\u503c,\u4f46\u662f(\u4e8b\u5b9e\u4e0a\u6211\u4eec\u8003\u8651\u7684\\(S_1,S_2\\)\u6709\u5148\u540e\u987a\u5e8f,)\\(S_1\\)\u603b\u662f\u4f18\u5148\u4e8e\\(S_2\\)\u5230\u8fbe.\u56e0\u6b64\u4e0d\u59a8\u628a\\(S_1,S_2\\) \u7406\u89e3\u4e3a\u65f6\u95f4\u6bb5\u5185\u4e24\u4e2a\u72ec\u7acb\u540c\u5206\u5e03\u7684\u5747\u5300\u968f\u673a\u53d8\u91cf\u7684\u6700\u5927\u6700\u5c0f\u503c
3.\u66f4\u4e00\u822c\u7684,\u53ef\u4ee5\u8ba4\u4e3a n \u4e2a \\(S_i\\)\u7684\u5206\u5e03\u4e5f\u662f n \u4e2a\u72ec\u7acb\u540c\u5206\u5e03\u7684\u968f\u673a\u53d8\u91cf\u7684\u6b21\u5e8f\u6392\u5217,\u6362\u53e5\u8bdd\u8bf4
\\[(S_1,S_2,\\cdots,S_n|N(t)=n)\\overset{d}{=}(U'_1,U'_2,\\cdots,U'_n)\\] \u5176\u4e2d\\(\\{U'_i\\}_{i=1}^n\\)\u662f n \u4e2a\u5747\u5300\u5206\u5e03\u968f\u673a\u53d8\u91cf\\(\\{U_i\\}_{i=1}^n\\)\u7684\u6b21\u5e8f\u7edf\u8ba1\u91cf \u6709:
\\[P_{S_1,S_2,\\cdots,S_n|N(t)}(x_1,x_2,\\cdots,x_n|n)=\\frac{n!}{t^n},0<x_1<\\cdots<x_n\\] \u5176\u4f59\u60c5\u51b5\u662f\u53d6\u503c\u4e3a 0,\u5982\u679c\u4e0d\u662f\u6b21\u5e8f\u7edf\u8ba1\u91cf\u90a3\u4e48\u663e\u7136\u6ca1\u6709\\(n!\\),\u5728 n \u4e2a \\(x_i\\)\u7684\u968f\u673a\u6392\u5217\u4e2d\u53ea\u6709\u4e00\u79cd\u662f\u7b26\u5408\u6b21\u5e8f\u7684, \u56e0\u6b64\u5bf9\u5e94\u7684\u6837\u672c\u7a7a\u95f4(\u975e0)\u88ab\u7f29\u5c0f\u4e86\u5230\u539f\u6765\u76841/n!,\u76f8\u5e94\u7684\u6982\u5ff5\u5bc6\u5ea6\u4e5f\u5c31\u6269\u5927\u4e86n!\u500d
\u6700\u540e\u6709:
\\[E(\\sum\\limits_{i=1}^nf(S_i)|N(t)=n)=E(\\sum_{i=1}^nf(U_i))=n\\int_0^tf(x)dx\\] "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_4","title":"\u6b21\u5e8f\u7edf\u8ba1\u91cf","text":" \u8bbe\\(X_1,X_2,\\cdots,X_n\\)\u72ec\u7acb\u540c\u5206\u5e03,\u5206\u5e03\u51fd\u6570\u4e3aF,\u5bc6\u5ea6\u51fd\u6570\u4e3af,\u4e14\\(X_{(1)},X_{(2)},\\cdots,X_{(n)}\\)\u662f\\(X_1,X_2,\\cdots,X_n\\)\u7684\u6b21\u5e8f\u7edf\u8ba1\u91cf,\u90a3\u4e48\u6709
\\[ P(X_{(k)}\\leq x)=\\sum\\limits_{j=k}^nC_n^jF(x)^j[1-F(x)]^{n-j} \\] \u4e5f\u5c31\u662f\u8bf4\u5927\u4e8e x \u7684\u968f\u673a\u53d8\u91cf\u4e2a\u6570\u81f3\u5c11\u6709 k \u4e2a \\[ p_k(x)=C_n^1p(x)C_{n-1}^{k-1}F(x)^{k-1}[1-F(x)]^{n-k}=\\frac{n!}{(k-1)!(n-k)!}F(x)^{k-1}p(x)[1-F(x)]^{n-k} \\] \u5148\u9009\u4e00\u4e2a\u7b49\u4e8e x \u7684,\u7136\u540e k-1 \u4e2a\u5c0f\u96e8 x \u7684,\u5269\u4e0b\u7684\u5927\u4e8e x
\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u5728\u8003\u8651\u6b21\u5e8f\u7edf\u8ba1\u91cf\u7684\u65f6\u5019,\u8981\u901a\u8fc7\u5206\u6790\u539f\u59cb\u968f\u673a\u53d8\u91cf\u6765\u95f4\u63a5\u8003\u5bdf
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_4","title":"\u590d\u5408 Poisson \u8fc7\u7a0b","text":" \u8fd9\u4e00\u8282\u4e3b\u8981\u7814\u7a76\\(Z(t)=\\sum\\limits_{i=1}^{N(t)}\\xi_i\\)\u5176\u4e2d\\(N(t)\\sim P(\\lambda t)\\) ,\\(\\xi_i\\)\u72ec\u7acb\u540c\u5206\u5e03,\u4e14\\(E\\xi_i=\\mu,Var\\xi_i=\\sigma^2\\)
\\(EZ(t)=\\mu\\lambda t\\)
\\(EZ(t) = E\\sum\\limits_{i=1}^{N(t)}\\xi_i= \\sum\\limits_{n=0}^\\infty E(\\sum\\limits_{i=1}^{N(t)}\\xi_i|N(t)=n)P(N(t)=n) \\\\\\qquad =\\sum\\limits_{n=0}^\\infty E\\sum\\limits_{i=1}^n\\xi_i P(N(t)=n)= \\sum\\limits_{n=0}^\\infty n\\mu P(N(t)=n)\\\\\\qquad =\\mu EN(t)=\\mu\\lambda t\\) \\(VarZ(t)=(\\sigma^2+\\mu^2)\\lambda t\\)
\\(E(Z(t)^2) = E(\\sum\\limits_{i=1}^{N(t)}\\xi_i)^2=\\sum\\limits_{n=0}^\\infty E((\\sum\\limits_{i=1}^{N(t)}\\xi_i)^2|N(t)=n)P(N(t)=n)\\\\ \\qquad=\\sum\\limits_{n=0}^\\infty E(\\sum\\limits_{i=1}^n\\xi_i)^2P(N(t)=n)=\\sum\\limits_{n=0}^\\infty (n\\sigma^2+\\mu^2n^2)P(N(t)=n)\\\\ \\qquad=\\sigma^2EN(t)+\\mu^2E(N(t))^2=(\\mu^2+\\sigma^2)\\lambda t+\\mu^2\\lambda^2 t^2\\)
\\(VarZ(t)=E(Z(t)^2)-(EZ(t))^2=(\\sigma^2+\\mu^2)\\lambda t\\)
\u8fd9\u91cc\\(E(\\sum\\limits_{i=1}^n\\xi_i)^2=nE\\xi_i^2+(n^2-n)E\\xi_i\\xi_j,\\quad i\\neq j\\) \u72ec\u7acb\u5e73\u7a33\u589e\u91cf\u6027
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_5","title":"\u975e\u9f50\u6b21 Poisson \u8fc7\u7a0b","text":"\u4e4b\u524d\u5b66\u4e60\u7684 Poisson \u8fc7\u7a0b\u53ea\u548c\u65f6\u95f4\u6bb5\u6709\u5173,\u6362\u53e5\u8bdd\u8bf4\u7cfb\u7edf\u5728\u5404\u4e2a\u65f6\u523b\u7684\u7e41\u5fd9\u7a0b\u5ea6\u662f\u4e00\u6837\u7684\n\u4f46\u662f\u6bd4\u5982\u98df\u5802\u5c31\u9910,\u5f88\u660e\u663e\u5403\u996d\u65f6\u95f4\u4eba\u66f4\u591a,\u8fd9\u5c31\u662f\u975e\u9f50\u6b21\u7684\u60c5\u51b5\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_6","title":"\u591a\u7ef4Poisson\u70b9\u8fc7\u7a0b","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/","title":"Markov Chain","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#markov-chain_1","title":"Markov Chain\u7684\u57fa\u672c\u6027\u8d28","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_1","title":"\u5b9a\u4e49","text":" Markov Chain\u662f\u4e00\u7c7b\u7279\u6b8a\u7684\u968f\u673a\u8fc7\u7a0b,\u65f6\u95f4\u53c2\u6570\u7a7a\u95f4\u4e3a\u8fde\u7eed\u6216\u8005\u79bb\u6563\u96c6,\u4f46\u662f\u72b6\u6001\u7a7a\u95f4\u81f3\u591a\u662f\u53ef\u6570\u96c6
\\(X=(X_n,n\\geq 1)\\)\u662f\\(Markov-Chain \\iff,\\forall n\\geq 0,\\forall i,j,\\forall i_0,i_1\\cdots,i_{n-1}:P(X_{n+1}=j|X_n=i,X_{n-1}=i_{n-1},\\cdots,X_0=i_0)=P(X_{n+1}=j|X_n=i)\\)
\u4ee4\\(p_{n;ij}=P(X_{n+1}=j|X_n=i)\\),\u5219\\(p_{n;ij}\\)\u4e3aMarkov Chain\u5728 n \u65f6\u523b\u5b58\u72b6\u6001 i \u8f6c\u5316\u5230\u72b6\u6001 j \u7684\u6982\u7387,\u7279\u522b\u7684\u5982\u679c\\(p_{n;ij}\\)\u4e0e n \u65e0\u5173,\u90a3\u4e48\u79f0X \u662f(\u65f6\u95f4)\u9f50\u6b21\u9a6c\u5c14\u79d1\u592b\u94fe
\\(P=(p_{ij})_{n\\times n}\\)\u4e3a\u72b6\u6001\u8f6c\u79fb\u77e9\u9635
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#markov-chain_2","title":"Markov-Chain\u7684\u5206\u5e03","text":" \u5b9a\u4e49:\\(P_k(i)=P(X_k=i)\\),\\(i.e.P_k(i)\\)\u4e3aMarkov Chain\u5728 \\(k\\) \u65f6\u523b\u72b6\u6001\u4e3a \\(i\\) \u7684\u6982\u7387 \\(p_k=(P_k(1),P_k(2),\\cdots,P_k(n))\\)\u4e3aMarkov Chain\u5728 \\(k\\) \u65f6\u523b\u7684\u5206\u5e03
\\(p_0=(P_0(1),P_0(2),\\cdots,P_0(n))\\)\u4e3a\u521d\u59cb\u5206\u5e03,\u521d\u59cb\u5206\u5e03\u548c\u72b6\u6001\u8f6c\u79fb\u77e9\u9635\u5b8c\u5168\u51b3\u5b9a\u4e86Markov Chain\u7684\u5206\u5e03
\u5bb9\u6613\u5f97\u5230\\(p_n=p_0P^n\\)
\\(P(X_0=i_0,X_1=i_1,\\cdots,X_n=i_n)=P(X_0=i_0)P(X_1=i_1|X_0=i_0)\\cdots P(X_n=i_n|X_{n-1}=i_{n-1})=p_0(i_0)p_{i_0i_1}p_{i_1i_2}\\cdots p_{i_{n-1}i_n}\\)
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#m-","title":"m-\u6b65\u8f6c\u79fb\u6982\u7387","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_2","title":"\u72b6\u6001\u7a7a\u95f4\u5206\u89e3","text":"\u7c7b\u4f3c\u7fa4\u4f5c\u7528\u7684\u8f68\u9053\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_3","title":"\u4e92\u901a\u7c7b","text":" \u79f0\u72b6\u6001\\(i\\)\u53ef\u5230\u8fbe\u72b6\u6001\\(j\\),\u5982\u679c\u5b58\u5728\\(n\\geq 0\\)\u4f7f\u5f97\\(p_{ij}^{(n)}>0\\),\u8bb0\u4f5c\\(i\\rightarrow j\\) \u7ea6\u5b9a\\(p_{ii}^{(0)}=1,p_{ij}^{(0)}=0,i\\neq j\\)
\u5b9a\u4e49:\u72b6\u6001\\(i\\)\u548c\u72b6\u6001\\(j\\)\u4e92\u901a,\u5982\u679c\\(i\\rightarrow j\\)\u4e14\\(j\\rightarrow i\\),\u8bb0\u4f5c\\(i\\leftrightarrow j\\)
\u4e92\u901a\u662f\u7b49\u4ef7\u5173\u7cfb,\u5c06\u72b6\u6001\u7a7a\u95f4\u5206\u89e3\u4e3a\u4e92\u901a\u7c7b.\u6ee1\u8db3:
\u5bf9\u79f0\u6027:\\(i\\leftrightarrow j\\Rightarrow j\\leftrightarrow i\\) \u4f20\u9012\u6027:\\(i\\leftrightarrow j,j\\leftrightarrow k\\Rightarrow i\\leftrightarrow k\\) \u81ea\u53cd\u6027:\\(i\\leftrightarrow i\\) \u72b6\u6001\u7a7a\u95f4\u4e2d\u7684\u4e92\u901a\u7c7b\u662f\u4e0d\u76f8\u4ea4\u7684,\u4e14\u4e92\u901a\u7c7b\u7684\u5e76\u662f\u6574\u4e2a\u72b6\u6001\u7a7a\u95f4
\u5982\u679c\u521d\u59cb\u72b6\u6001\u5728\u67d0\u4e2a\u4e92\u901a\u7c7b\u4e2d,\u90a3\u4e48\u4ee5\u540e\u7684\u72b6\u6001\u90fd\u5728\u8fd9\u4e2a\u4e92\u901a\u7c7b\u4e2d "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_4","title":"\u5468\u671f","text":" \\(d_i=\\gcd\\{n\\geq 1:p_{ii}^{(n)}>0\\}\\)\u79f0\u4e3a\u72b6\u6001i\u7684\u5468\u671f,\u5982\u679c\\(d_i=1\\),\u5219\u79f0\u72b6\u6001i\u662f\u975e\u5468\u671f\u7684,\u5426\u5219\u79f0\u72b6\u6001i\u662f\u5468\u671f\u7684
\\(p_{ii}^{(n)}>0\\)\u8868\u793a\u72b6\u6001i\u5728n\u6b65\u4e4b\u540e\u53c8\u56de\u5230\u4e86\u72b6\u6001 i "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#41","title":"\u5b9a\u7406 4.1","text":" \u5982\u679c\\(i \\leftrightarrow j\\),\u90a3\u4e48\\(d_i=d_j\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_5","title":"\u72b6\u6001\u7a7a\u95f4\u5206\u89e3","text":" \u7ed9\u5b9a\u72b6\u6001\\(j\\),\u4ee4\\(T_j=\\inf\\{n\\geq 1:X_n=j\\}\\),\u5373\\(T_j\\)\u662fMarkov Chain\u7b2c\u4e00\u6b21\u5230\u8fbe\u72b6\u6001j\u7684\u65f6\u523b
\u7ea6\u5b9a:\\(\\inf\\emptyset=+\\infty\\),\u5373\u5982\u679cMarkov Chain\u6c38\u8fdc\u4e0d\u4f1a\u5230\u8fbe\u72b6\u6001j,\u90a3\u4e48\\(T_j=+\\infty\\) \u5f53\\(X_0=j\\)\u65f6,\\(T_j\\)\u8868\u793a\u9996\u6b21\u56de\u5230\u72b6\u6001j\u7684\u65f6\u523b,\u4e0d\u7136\u8868\u793a\u9996\u6b21\u5230\u8fbe\u72b6\u6001j\u7684\u65f6\u523b \u5982\u679c\\(P(T_j<\\infty |X_0=j)=1\\),\u4e5f\u5c31\u662f\u8bf4\u5728\u6709\u9650\u7684\u65f6\u95f4\u5185\u4e00\u5b9a\u4f1a\u56de\u5230\u72b6\u6001\\(j\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u5e38\u8fd4\u72b6\u6001
\u5982\u679c\\(E(T_j|X_0=j)<\\infty\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001 \u5982\u679c\\(E(T_j|X_0=j)=\\infty\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u96f6\u5e38\u8fd4\u72b6\u6001 \u5982\u679c\\(P(T_j<\\infty |X_0=j)<1\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u77ac\u65f6\u72b6\u6001 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#42","title":"\u5b9a\u7406 4.2","text":" \u5982\u679c\\(i\\leftrightarrow j\\),\u90a3\u4e48:
\\(i\\)\u662f\u77ac\u65f6\u72b6\u6001\\(\\iff j\\)\u662f\u77ac\u65f6\u72b6\u6001 \\(i\\)\u662f\u5e38\u8fd4\u72b6\u6001\\(\\iff j\\)\u662f\u5e38\u8fd4\u72b6\u6001 \\(i\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001\\(\\iff j\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001 \u8fd9\u8868\u660e\u5e38\u8fd4\u6027\u548c\u77ac\u65f6\u6027\u90fd\u662f\"\u7c7b\u6027\u8d28\"
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#43","title":"\u5b9a\u7406 4.3","text":" \\(i\\)\u662f\u5e38\u8fd4\u7684,\u90a3\u4e48\\(C_i=\\{j:i\\leftrightarrow j\\}\\)\u662f\u95ed\u96c6 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#44","title":"\u5b9a\u7406 4.4(\u72b6\u6001\u7a7a\u95f4\u7684\u5206\u89e3)","text":" \\(\\varepsilon = C_1+\\cdots+C_m+\\mathcal{N}\\),\u5176\u4e2d\\(C_1,\\cdots,C_m\\)\u662f\u5e38\u8fd4\u7c7b,\\(\\mathcal{N}\\)\u662f\u77ac\u65f6\u72b6\u6001\u5168\u4f53,\\(m\\)\u53ef\u4ee5\u53d6\u65e0\u7a77
\u4e0d\u540c\u5e38\u8fd4\u72b6\u6001\u7b49\u4ef7\u7c7b\u662f\u4e0d\u76f8\u4ea4\u4e4b\u95ed
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_6","title":"\u5e38\u8fd4\u6027\u4e0e\u77ac\u65f6\u6027","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/","title":"\u9ad8\u7b49\u4ee3\u6570","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/","title":"\u7ebf\u6027\u65b9\u7a0b\u7ec4","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#11","title":"1.1 \u89e3\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u77e9\u9635\u6d88\u5143\u6cd5","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_2","title":"\u7814\u7a76\u95ee\u9898:","text":" \u7ebf\u6027\u65b9\u7a0b\u7ec4\u65f6\u5019\u4e00\u5b9a\u6709\u89e3,\u6709\u89e3\u65f6\u6709\u591a\u5c11\u89e3 \u5982\u4f55\u6c42\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u89e3 \u6709\u89e3\u65f6,\u662f\u5426\u6bcf\u4e00\u4e2a\u89e3\u90fd\u6ee1\u8db3\u5b9e\u9645\u9700? \u591a\u4e2a\u89e3\u4e4b\u95f4\u7684\u5173\u7cfb\u5982\u4f55? "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_3","title":"\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u521d\u7b49\u53d8\u6362","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1","title":"\u5b9a\u4e49 1","text":" \u7531\\(s\\cdot m\\)\u4e2a\u6570\u6392\u6210\\(s\\)\u884c\\(m\\)\u5217\u7684\u6570\u8868\u79f0\u4e3a\\(s\\times m\\)\u77e9\u9635,\u5176\u4e2d\u7684\u6bcf\u4e00\u4e2a\u6570\u79f0\u4e3a\u77e9\u9635\u7684\u5143\u7d20,\u7b2c\\(i\\)\u884c\u7b2c\\(j\\)\u5217\u7684\u5143\u7d20\u8bb0\u4e3a\u77e9\u9635\u7684\\((i,j)\\)\u5143 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_4","title":"\u77e9\u9635\u7684\u884c\u521d\u7b49\u53d8\u6362","text":" \u628a\u4e00\u884c\u7684\u500d\u6570\u52a0\u5230\u53e6\u4e00\u884c \u4ea4\u6362\u4e24\u884c \u4ee5\u975e\u96f6\u6570\u4e58\u4e00\u884c "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_1","title":"\u5b9a\u7406 1","text":" \u4efb\u4e00\u77e9\u9635\u53ef\u4ee5\u7ecf\u8fc7\u4e00\u7cfb\u5217\u521d\u7b49\u884c\u53d8\u6362\u5316\u6210\u9636\u68af\u578b\u77e9\u9635,\u5e76\u4e14\u8fdb\u4e00\u6b65\u80fd\u5316\u6210\u7b80\u5316\u884c\u9636\u68af\u578b\u77e9\u9635 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#12","title":"1.2 \u7ebf\u6027\u65b9\u7a0b\u7ec4\u89e3\u7684\u60c5\u51b5\u53ca\u5176\u5224\u522b\u51c6\u5219","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_2","title":"\u5b9a\u7406 1","text":" \u7cfb\u6570\u548c\u5e38\u6570\u9879\u4e3a\u6709\u7406\u6570(\u5b9e\u6570,\u590d\u6570)\u7684\\(n\\)\u5143\u7ebf\u6027\u65b9\u7a0b\u7ec4\u89e3\u7684\u60c5\u51b5\u6709\u4e09\u79cd: \u9636\u68af\u578b\u65b9\u7a0b\u7ec4\u6709\"\\(0=d\\neq 0\\)\"\u7684\u5f62\u5f0f,\u5219\u65b9\u7a0b\u7ec4\u65e0\u89e3 \u5426\u5219,\u82e5\u975e\u96f6\u884c\u6570\u76ee\\(r=n\\),\u5219\u65b9\u7a0b\u7ec4\u6709\u552f\u4e00\u89e3 \u4e0d\u7136\\((r<n)\\)\u65b9\u7a0b\u7ec4\u6709\u65e0\u7a77\u591a\u89e3
\u63a8\u8bba1:\\(n\\)\u5143\u9f50\u6b21\u7ebf\u6027\u65b9\u7a0b\u7ec4\u6709\u975e\u96f6\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f\u4ed6\u7684\u7cfb\u6570\u77e9\u9635\u7ecf\u8fc7\u521d\u7b49\u53d8\u6362\u5316\u6210\u7684\u9636\u68af\u578b\u77e9\u9635\u4e2d\\(r<n\\)
\u63a8\u8bba2:\u82e5\\(n\\)\u5143\u9f50\u6b21\u7ebf\u6027\u65b9\u7a0b\u7ec4\u65b9\u7a0b\u7684\u6570\u76ee\u5c0f\u4e8e\u672a\u77e5\u6570\u7684\u6570\u76ee\u90a3\u4e48\u65b9\u7a0b\u4e00\u5b9a\u6709\u975e\u96f6\u89e3 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#13","title":"1.3 \u6570\u57df","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_3","title":"\u5b9a\u4e49 1","text":" \\(K\\subset C\\)\u5982\u679c\u6ee1\u8db3: \\(0,1\\in K\\) \\(a,b\\in K\\Rightarrow a\\pm b\\in K\\)\u82e5\\(b\\neq 0\\),\u5219\\(a\\cdot b,\\frac{a}{b}\\in K\\) \u90a3\u4e48\u79f0\\(K\\)\u4e3a\u4e00\u4e2a\u6570\u57df
\u8fd9\u91cc 0,1\u5b9e\u9645\u4e0a\u8868\u793a\u7684\u52a0\u6cd5\u5355\u4f4d\u5143\u548c\u4e58\u6cd5\u7684\u5355\u4f4d\u5143(\u4ee5\u540e\u4f1a\u62bd\u8c61\u7684\u8ba8\u8bba) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_4","title":"\u547d\u9898 1","text":" \u4efb\u4e00\u6570\u57df\u5305\u542b\u6709\u7406\u6570\u57df(\u5373\u6709\u7406\u6570\u57df\u662f\u6700\u5c0f\u7684\u6570\u57df) \u590d\u6570\u57df\u662f\u6700\u5927\u7684\u6570\u57df "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/","title":"\u884c\u5217\u5f0f","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#21-n","title":"2.1 \\(n\\)\u5143\u6392\u5217","text":" \u987a\u5e8f:\\(ij,s.t.j<j\\) \u9006\u5e8f:\\(ij,s.t.i>j\\) \u9006\u5e8f\u6570:\u6392\u5217\u4e2d\u9006\u5e8f\u7684\u4e2a\u6570,\u8bb0\u4f5c\\(\\tau(\\sigma)\\) \u9006\u5e8f\u6570\u4e3a\u5947\u6570\u7684\u6392\u5217\u79f0\u4e3a\u5947\u6392\u5217,\u4e3a\u5076\u6570\u7684\u6392\u5217\u79f0\u4e3a\u5076\u6392\u5217 \u5bf9\u6362,\u4ea4\u6362\\(\\sigma_i,\\sigma_j\\)\u7684\u4f4d\u7f6e,\u8bb0\u4f5c\\((\\sigma_i,\\sigma_j)\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1","title":"\u5b9a\u7406 1","text":" \u5bf9\u6362\u6539\u53d8\\(n\\)\u5143\u6392\u5217\u7684\u5947\u5076\u6027 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#2","title":"\u5b9a\u7406 2","text":" \u4efb\u4e00\\(n\\)\u5143\u6392\u5217\u53ef\u4ee5\u7ecf\u8fc7\u4e00\u7cfb\u5217\u5bf9\u6362\u53d8\u6210\u6392\u5217\\((1,2,3,\\cdots,n)\\),\u6240\u505a\u7684\u5bf9\u6362\u6b21\u6570\u4e0e\u539f\u6392\u5217\u7684\u5947\u5076\u6027\u76f8\u540c
\u5728\u5168\u90e8\\(n!\\)\u4e2a\u6392\u5217\u4e2d,\u5947\u6392\u5217\u548c\u5076\u6392\u5217\u5404\u5360\u4e00\u534a
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vimium-c
\u5728github\u4e0a\u7981\u7528\u4e86\"/\",\u907f\u514d\u548cgithub\u641c\u7d22\u51b2\u7a81
\u914d\u7f6e
\u9ed8\u8ba4p \u5728\u5f53\u524d\u9875\u9762\u6253\u5f00,\u5e0c\u671b\u6253\u5f00\u65b0\u9875\u9762,\u4e0d\u7136\u6211\u73b0\u5728\u7684\u9875\u9762\u88ab\u8986\u76d6\u4e86(\u5927\u5199\u61d2\u5f97\u6441) - mapKey p P - mapKey P p
pdf-viwer
\u4f7f\u5f97 pdf \u4e5f\u53ef\u4ee5\u88ab vim \u6309\u952e\u63a7\u5236 ChatGPT Sidebar
\u4ee3\u66ff bing AI \u7684\u5de5\u5177 "},{"location":"Tools/vscode/","title":"Vscode","text":" plugins: One dark pro Bookmarks cmd+m \u521b\u5efa\u4e66\u7b7e cmd+n \u8df3\u8f6c\u4e0b\u4e00\u4e2a\u4e66\u7b7e cmd+N \u8df3\u8f6c\u4e0a\u4e00\u4e2a\u4e66\u7b7e \u8fd9\u91cc\u6cbf\u7528\u4e86 nvim \u4f7f\u7528 n,N \u8df3\u8f6c\u641c\u7d22\u7684\u5feb\u6377\u952e C/C++ Center Editor Window \u5c06\u5f53\u524d\u6587\u4ef6\u5c45\u4e2d Chinese (Simplified) CodeSnap \u53ef\u4ee5\u4e0d\u7528\u4f46\u662f\u4e0d\u80fd\u6ca1\u6709 Error Lens \u63d0\u793a\u9519\u8bef\u4fe1\u606f,\u975e\u5e38\u667a\u80fd Git History GitHub Copilot Image Preview markdown \u4e2d\u56fe\u7247\u9884\u89c8 Jupyter \u4ee5\u53ca\u4e00\u5806 jupyter \u81ea\u52a8\u5b89\u88c5\u7684\u63d2\u4ef6 Latex Snippets Markdown All in One Markdown Preview Enhanced Material Icon Theme Path Intellisense \u81ea\u52a8\u8865\u5168\u8def\u5f84 Pylance Python Python Debugger Rainbow CSV \u8ba9 csv \u6587\u4ef6\u66f4\u597d\u770b Remote - SSH \u8fdc\u7a0b\u8fde\u63a5,\u8fd8\u80fd\u8fde\u63a5 WSL vscode-pdf
\u9884\u89c8 pdf \u6587\u4ef6
my config file
"}]}
\ No newline at end of file
+{"config":{"lang":["en","zh"],"separator":"[\\s\\-]+","pipeline":["stopWordFilter"]},"docs":[{"location":"","title":"\ud835\udcdb\ud835\udcf3\ud835\udd01'\ud835\udcdf\ud835\udcea\ud835\udcf0\ud835\udcee","text":"\\[ \\int_{birth}^{death} study\\ dt = life \\] #include <earth> \nclass luojunxun { \n public: \n luojunxun(){ \n std::cout << \"Hello, I'm luojunxun\" << std::endl; \n }; \n ~luojunxun(){ \n throw std::runtime_error(\"I'm not dead yet!\"); \n }; \n\n private: \n std::string name{\"luojunxun\"}; \n Chat::email email{\"junxun-luo@outlook.com\"}; \n Social::job{\"Student\"}; \n Education::school University{\"Zhejiang University\"}; \n Life::hobby hobby{\"coding+Math+Fitness\"}; \n}; \n
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"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_40","title":"\u8fdb\u7a0b\u540c\u6b65\u8fdb\u7a0b\u4e92\u65a5","text":"\u4e00\u6b21\u4ec5\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528\u7684\u8d44\u6e90\u79f0\u4e3a\u4e34\u754c\u8d44\u6e90\n
while(ture){\n entry section;//\u8fdb\u5165\u533a<\u68c0\u67e5\u662f\u5426\u80fd\u8fdb\u5165>\n critical section; //\u4e34\u754c\u533a<\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u4ee3\u7801,\u53c8\u79f0\u4e3a\u4e34\u754c\u6bb5>\n exit section; //\u9000\u51fa\u533a<\u5c06\u6b63\u5728\u8bbf\u95ee\u7684\u6807\u5fd7\u6e05\u9664>\n remainder section; //\u5269\u4f59\u533a\n}\n
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_41","title":"\u8fdb\u7a0b\u4e92\u65a5\u7684\u8f6f\u4ef6\u5b9e\u73b0\u65b9\u6cd5","text":"\u8bbe\u7f6e\u4e00\u4e2a\u516c\u7528\u7684\u6574\u578b\u53d8\u91cf turn,\u6307\u5411\u5141\u8bb8\u8fdb\u5165\u4e34\u754c\u533a\u7684\u7f16\u53f7 \u53ef\u4ee5\u5b9e\u73b0\u6bcf\u6b21\u53ea\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u8fdb\u5165\u4e34\u754c\u533a,\u4f46\u662f\u4e24\u4e2a\u7a0b\u5e8f\u6bd4\u5982\u4ea4\u66ff\u8fdb\u5165\u4e34\u754c\u533a,\u5982\u679c\u67d0\u4e2a\u7a0b\u5e8f\u4e0d\u6253\u7b97\u8fdb\u5165\u4e34\u754c\u533a,\u90a3\u4e48\u53e6\u4e00\u4e2a\u4e5f\u5c31\u4e0d\u80fd\u518d\u8fdb\u5165\u4e34\u754c\u533a,\u8fdd\u80cc\u4e86<\u7a7a\u95f2\u8ba9\u8fdb>\u7684\u539f\u5219
\u8bbe\u7f6e\u5e03\u5c14\u578b\u6570\u7ec4 flag[2] \u6807\u8bb0\u53cc\u65b9\u8fdb\u5165\u7684\u610f\u613f,\u8fdb\u5165\u4e34\u754c\u533a\u4e4b\u524d\u5148\u68c0\u67e5\u5bf9\u65b9\u662f\u5426\u60f3\u8fdb\u5165,\u5982\u679c\u662f\u5c31\u5faa\u73af\u68c0\u67e5\u5e76\u7b49\u5f85,\u4e0d\u662f\u5219\u7f6e\u81ea\u5df1\u7684 flag \u4e3a true,\u7136\u540e\u8bbf\u95ee\u4e34\u754c\u533a,\u9000\u51fa\u7684\u65f6\u5019\u518d\u7f6e\u81ea\u5df1\u7684 flag \u4e3a false
\u8fd9\u79cd\u505a\u6cd5\u4e0d\u9700\u8981\u8fdb\u7a0b\u4ea4\u66ff\u8fdb\u5165,\u53ef\u4ee5\u8fde\u7eed\u4f7f\u7528,\u4f46\u662f\u4e24\u4e2a\u8fdb\u7a0b\u53ef\u80fd\u540c\u65f6\u8bbf\u95ee\u4e34\u754c\u533a,\u539f\u56e0\u5728\u4e8e\u68c0\u67e5\u5bf9\u65b9\u6807\u5fd7\u540e\u5230\u5207\u6362\u81ea\u5df1\u6807\u5fd7\u4e2d\u53ef\u80fd\u53d1\u751f\u8fdb\u7a0b\u5207\u6362,\u5bfc\u81f4\u53cc\u65b9\u90fd\u68c0\u67e5\u901a\u8fc7,\u8fdd\u80cc<\u5fd9\u7740\u7b49\u5f85>\u539f\u5219
\u539f\u56e0\u5728\u4e8e\u68c0\u67e5\u548c\u8bbe\u7f6e\u4e0d\u662f\u4e00\u6c14\u5475\u6210\u7684
\u5148\u8bbe\u7f6e\u81ea\u5df1\u7684\u6807\u5fd7\u518d\u68c0\u67e5\u5bf9\u65b9 \u95ee\u9898\u5728\u4e8e\u5982\u679c\u5728\u8bbe\u7f6e\u81ea\u5df1\u6807\u5fd7\u548c\u68c0\u67e5\u5bf9\u65b9\u7684\u65f6\u5019\u53d1\u751f\u4e86\u8fdb\u7a0b\u5207\u6362,\u90a3\u4e48\u4e24\u4e2a\u7a0b\u5e8f\u90fd\u65e0\u6cd5\u8fdb\u5165\u4e34\u754c\u533a,\u8fdd\u80cc\u4e86<\u7a7a\u95f2\u8ba9\u8fdb>\u7684\u539f\u5219, \u6b64\u5916\u4e24\u4e2a\u8fdb\u7a0b\u957f\u671f\u5f97\u4e0d\u5230\u8bbf\u95ee\u5bfc\u81f4\u9965\u997f,\u8fdd\u80cc\u4e86<\u6709\u9650\u7b49\u5f85>\u539f\u5219
\u7ed3\u5408\u7b97\u6cd5 1,3.\u5229\u7528 flag \u89e3\u51b3\u4e92\u65a5\u95ee\u9898,turn \u89e3\u51b3\u9965\u997f\u95ee\u9898.
\u8fdb\u5165\u4e4b\u524d\u5c06\u81ea\u5df1\u7684 flag \u7f6e true \u7136\u540e turn \u8bbe\u7f6e\u4e3a\u5bf9\u65b9,\u5982\u679c turn \u662f\u5bf9\u65b9\u4e14\u5bf9\u65b9\u60f3\u8fdb\u5c31\u7b49\u5f85,\u5426\u5219\u8fdb\u5165,\u5b8c\u6210\u540e\u7f6e flag \u4e3a false \u552f\u4e00\u7f3a\u70b9\u662f\u6ca1\u6709\u9075\u5faa<\u8ba9\u6743\u7b49\u5f85>
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_42","title":"\u603b\u7ed3","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/2-%E8%BF%9B%E7%A8%8B%E4%B8%8E%E7%BA%BF%E7%A8%8B/#_43","title":"\u8fdb\u7a0b\u4e92\u65a5\u7684\u786c\u4ef6\u5b9e\u73b0\u65b9\u6cd5","text":"\u4e2d\u65ad\u5c4f\u853d\u65b9\u6cd5
TestAndSet \u6307\u4ee4
Swap\u6307\u4ee4
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"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_23","title":"\u5feb\u8868\u80fd\u63d0\u9ad8\u6548\u7387\u7684\u539f\u56e0","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_24","title":"\u603b\u7ed3","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_25","title":"\u9875\u5f0f\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_26","title":"\u6bb5\u9875\u5f0f\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_27","title":"\u865a\u62df\u5185\u5b58","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_28","title":"\u5c40\u90e8\u6027\u539f\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_29","title":"\u8bf7\u6c42\u5206\u9875\u7ba1\u7406\u65b9\u5f0f","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_30","title":"\u9875\u8868\u53d8\u5316","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_31","title":"\u7f3a\u9875\u4e2d\u65ad","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_32","title":"\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5","text":"\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5(OPT,Optimal):\u6bcf\u6b21\u9009\u62e9\u6dd8\u6c70\u7684\u9875\u9762\u5c06\u662f\u4ee5\u540e\u6c38\u4e0d\u4f7f\u7528\uff0c\u6216\u8005\u5728\u6700\u957f\u65f6\u95f4\u5185\u4e0d\u518d\u88ab \u8bbf\u95ee\u7684\u9875\u9762\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u6700\u4f4e\u7684\u7f3a\u9875\u7387\u3002
\u5148\u8fdb\u5148\u51fa\u7f6e\u6362\u7b97\u6cd5(FIFO):\u6bcf\u6b21\u9009\u62e9\u7684\u6dd8\u6c70\u9875\u9762\u662f\u6700\u65e9\u8fdb\u5165\u5185\u5b58\u7684\u9875\u9762
\u6700\u8fd1\u6700\u4e45\u672a\u4f7f\u7528\u7f6e\u6362\u7b97\u6cd5(LRU,least recently used):\u6bcf\u6b21\u6dd8\u6c70\u7684\u9875\u9762\u662f\u6700\u8fd1\u6700\u4e45\u672a\u4f7f\u7528\u7684\u9875\u9762
\u65f6\u949f\u7f6e\u6362\u7b97\u6cd5\u662f\u4e00\u79cd\u6027\u80fd\u548c\u5f00\u9500\u8f83\u5747\u8861\u7684\u7b97\u6cd5\uff0c\u53c8\u79f0CLOCK\u7b97\u6cd5\uff0c\u6216\u6700\u8fd1\u672a\u7528\u7b97\u6cd5(NRU,Not Recently Used)
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_33","title":"\u9875\u9762\u5206\u914d\u7b56\u7565","text":"\u9a7b\u7559\u96c6:\u8bf7\u6c42\u5206\u9875\u7ba1\u7406\u4e2d\u7ed9\u8fdb\u7a0b\u5206\u914d\u7684\u7269\u7406\u5757\u7684\u96c6\u5408
\u5de5\u4f5c\u96c6:\u67d0\u6bb5\u65f6\u95f4\u5185,\u8fdb\u7a0b\u5b9e\u9645\u8bbf\u95ee\u7684\u9875\u9762\u7684\u96c6\u5408
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/3-%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/#_34","title":"\u5185\u5b58\u6620\u5c04\u6587\u4ef6","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/","title":"\u6587\u4ef6\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_2","title":"\u6587\u4ef6\u7684\u5c5e\u6027","text":" \u6587\u4ef6\u540d:\u7528\u6237\u6700\u76f4\u89c2\u7684\u611f\u77e5 \u6807\u8bc6\u7b26:\u64cd\u4f5c\u7cfb\u7edf\u5185\u90e8\u7528\u4e8e\u533a\u5206\u5404\u4e2a\u6587\u4ef6\u7684\u6807\u5fd7,\u5bf9\u7528\u6237\u6ca1\u6709\u53ef\u8bfb\u6027 \u7c7b\u578b:txt,py.. \u4f4d\u7f6e,\u5927\u5c0f,\u521b\u5efa\u8005\u7b49\u7b49
\u6587\u4ef6\u5185\u90e8\u6570\u636e\u7ec4\u7ec7\u5f62\u5f0f
\u6d41\u5f0f\u6587\u4ef6:\u65e0\u7ed3\u6784\u6587\u4ef6,\u7531\u4e8c\u8fdb\u5236\u5b57\u7b26\u6d41\u7ec4\u6210,\u5982 txt \u6587\u4ef6
\u8bb0\u5f55\u5f0f\u6587\u4ef6:\u6709\u7ed3\u6784\u6587\u4ef6.\u5982xlsx\u6587\u4ef6
\u6587\u4ef6\u4e4b\u95f4\u7684\u903b\u8f91\u7ed3\u6784? \u64cd\u4f5c\u7cfb\u7edf\u5411\u4e0a\u63d0\u4f9b\u6587\u4ef6\u7684\u6700\u57fa\u672c\u529f\u80fd
\u521b\u5efa\u6587\u4ef6:creat \u7cfb\u7edf\u8c03\u7528 \u5220\u9664\u6587\u4ef6:delete \u7cfb\u7edf\u8c03\u7528 \u6253\u5f00\u6587\u4ef6:open \u7cfb\u7edf\u8c03\u7528 \u5173\u95ed\u6587\u4ef6:close \u7cfb\u7edf\u8c03\u7528 \u8bfb\u6587\u4ef6:read \u7cfb\u7edf\u8c03\u7528 \u5199\u6587\u4ef6:write \u7cfb\u7edf\u8c03\u7528 \u5916\u5b58\u4e2d\u6587\u4ef6\u7684\u7ec4\u7ec7\u5f62\u5f0f
\u7c7b\u4f3c\u4e8e\u5185\u5b58\u5206\u4e3a\u4e00\u4e2a\u4e2a\u201c\u5185\u5b58\u5757\u201d\uff0c\u5916\u5b58\u4f1a\u5206\u4e3a\u4e00\u4e2a\u4e2a\u201c\u5757/\u78c1\u76d8\u5757/\u7269\u7406\u5757\u201d\u3002 \u6bcf\u4e2a\u78c1\u76d8\u5757\u7684\u5927\u5c0f\u662f\u76f8\u7b49\u7684\uff0c\u6bcf\u5757\u4e00\u822c\u5305\u542b2\u7684\u6574\u6570\u5e42\u4e2a\u5730\u5740 \u540c\u6837\u7c7b\u4f3c\u7684\u662f\uff0c\u6587\u4ef6\u7684\u903b\u8f91\u5730 \u5740\u4e5f\u53ef\u4ee5\u5206\u4e3a(\u903b\u8f91\u5757\u53f7\uff0c\u5757\u5185\u5730\u5740) \u64cd\u4f5c\u7cfb\u7edf\u540c\u6837\u9700\u8981\u5c06\u903b\u8f91\u5730\u5740\u8f6c \u6362\u4e3a\u5916\u5b58\u7684\u7269\u7406\u5730\u5740(\u7269\u7406\u5757\u53f7\uff0c\u5757\u5185\u5730\u5740)\u7684\u5f62\u5f0f\u3002 \u5757\u5185\u5730\u5740\u7684\u4f4d\u6570\u53d6\u51b3\u4e8e\u78c1\u76d8\u5757\u7684\u5927\u5c0f
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_3","title":"\u6587\u4ef6\u7684\u903b\u8f91\u7ed3\u6784","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_4","title":"\u6587\u4ef6\u76ee\u5f55","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_5","title":"\u6587\u4ef6\u7684\u7269\u7406\u7ed3\u6784","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_6","title":"\u903b\u8f91\u7ed3\u6784&\u7269\u7406\u7ed3\u6784","text":" \u5b9e\u9645\u4e0a\u5c31\u662f\u64cd\u4f5c\u7cfb\u7edf\u5b58\u50a8\u4fe1\u606f\u7684\u65f6\u5019\u53ef\u80fd\u4f1a\u91c7\u7528\u94fe\u5f0f\u5b58\u50a8\u6216\u8005\u987a\u5e8f\u5b58\u50a8\u4e4b\u7c7b\u7684\u5b58\u50a8\u65b9\u5f0f,\u4ee3\u7801\u4e2d\u903b\u8f91\u4e0a\u76f8\u90bb\u7684\u6570\u636e\u4e0d\u4e00\u5b9a\u4f1a\u76f8\u90bb,\u4e0d\u76f8\u90bb\u7684\u6570\u636e\u4e5f\u4e0d\u4e00\u5b9a\u76f8\u90bb\u6216\u8005\u4e0d\u76f8\u90bb,\u8fd9\u53d6\u51b3\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7684\u5b58\u50a8\u7ba1\u7406\u65b9\u5f0f "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_7","title":"\u6587\u4ef6\u5b58\u50a8\u7a7a\u95f4\u7ba1\u7406","text":""},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_8","title":"\u6587\u4ef6\u7684\u57fa\u7840\u64cd\u4f5c","text":"\u901a\u8fc7\u76ee\u5f55\u5757\u64cd\u4f5c\n
\u521b\u5efa\u6587\u4ef6: \u8c03\u7528 creat \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u6587\u4ef6\u5927\u5c0f,\u6587\u4ef6\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d \u5220\u9664\u6587\u4ef6: delete \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d \u6253\u5f00\u6587\u4ef6: open \u7cfb\u7edf\u8c03\u7528 \u9700\u8981\u7684\u53c2\u6570:\u5b58\u653e\u8def\u5f84,\u6587\u4ef6\u540d,\u6587\u4ef6\u64cd\u4f5c(w \u5199,r \u8bfb\u4e4b\u7c7b) \u6d89\u53ca\u6743\u9650\u68c0\u67e5 \u5173\u95ed\u6587\u4ef6 close \u7cfb\u7edf\u8c03\u7528 \u5c06\u6253\u5f00\u6587\u4ef6\u8868\u76f8\u5173\u7684\u90e8\u5206\u5220\u9664,\u56de\u6536\u8d44\u6e90,\u6253\u5f00\u8ba1\u6570\u5668-1 \u8bfb\u6587\u4ef6: read \u7cfb\u7edf\u8c03\u7528 \u6307\u660e\u8bfb\u6587\u4ef6\u7684\u540d\u79f0,\u8bfb\u53d6\u7684\u5b57\u8282\u6570,\u8bfb\u53d6\u7684\u4f4d\u7f6e \u5199\u6587\u4ef6: write \u7cfb\u7edf\u8c03\u7528 \u6307\u660e\u5199\u6587\u4ef6,\u5199\u5165\u7684\u5b57\u8282\u6570,\u5199\u5165\u7684\u4f4d\u7f6e(\u5916\u5b58) "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_9","title":"\u6587\u4ef6\u5171\u4eab","text":" \u786c\u94fe\u63a5: \u8f6f\u94fe\u63a5 "},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/4-%E6%96%87%E4%BB%B6%E7%AE%A1%E7%90%86/#_10","title":"\u6587\u4ef6\u4fdd\u62a4","text":" \u53e3\u4ee4\u4fdd\u62a4 \u4e3a\u6587\u4ef6\u8bbe\u7f6e\u53e3\u4ee4,\u5176\u4ed6\u7528\u6237\u8bbf\u95ee\u65f6\u9700\u8981\u8f93\u5165\u53e3\u4ee4
\u4fdd\u5b58\u53e3\u4ee4\u7684\u5f00\u9500\u548c\u9a8c\u8bc1\u7684\u5f00\u9500\u90fd\u5c0f \u7f3a\u70b9\u662f\u53e3\u4ee4\u5b58\u653e\u5728\u7cfb\u7edf\u5185\u90e8,\u4e0d\u591f\u5b89\u5168 \u52a0\u5bc6\u4fdd\u62a4
\u7528\u5bc6\u7801(\u52a0\u5bc6\u65b9\u5f0f,\u5982\u5f02\u6216\u8fd0\u7b97)\u5bf9\u6587\u4ef6\u52a0\u5bc6(\u64cd\u4f5c\u7cfb\u7edf\u4fdd\u5b58\u4e86\u52a0\u5bc6\u6570\u636e\u800c\u4e0d\u662f\u539f\u59cb\u6570\u636e)
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\u5728\u6587\u4ef6 FCB \u4e2d\u6dfb\u52a0\u8bbf\u95ee\u63a7\u5236\u8868,\u8bb0\u5f55\u5404\u4e2a\u7528\u6237\u7684\u6743\u9650
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\u7a0b\u5e8f\u8ba1\u6570\u5668PC(Program Counter)
\u7a0b\u5e8f\u72b6\u6001\u5b57\u5bc4\u5b58\u5668PSW(Program Status Word)
\u901a\u7528\u5bc4\u5b58\u5668
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\u64cd\u4f5c\u7cfb\u7edf\u7684\u5f15\u5bfc\u7a0b\u5e8f\u4f4d\u4e8e\u78c1\u76d8\u6d3b\u52a8\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\u4e2d,\u5f15\u5bfc\u7a0b\u5e8f\u5206\u4e3a\u4e24\u79cd,\u4e00\u79cd\u662f\u4f4d\u4e8e ROM \u4e2d\u7684\u81ea\u4e3e\u7a0b\u5e8f(BIOS \u7684\u7ec4\u6210\u90e8\u5206),\u7528\u4e8e\u542f\u52a8\u5177\u4f53\u7684\u8bbe\u5907;\u53e6\u4e00\u79cd\u662f\u4f4d\u4e8e\u88c5\u6709\u64cd\u4f5c\u7cfb\u7edf\u7684\u6d3b\u52a8\u5206\u533a\u7684\u5f15\u5bfc\u6247\u533a\u4e2d\u7684\u5f15\u5bfc\u7a0b\u5e8f (\u79f0\u4e3a\u542f\u52a8\u7ba1\u7406\u5668),\u7528\u4e8e\u5f15\u5bfc\u64cd\u4f5c\u7cfb\u7edf.<\u8ba1\u7b97\u673a\u7684\u5f15\u5bfc\u7a0b\u5e8f\u4f4d\u4e8e\u786c\u76d8\u4e2d>
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter1/#_1","title":"\u8ba1\u7b97\u673a\u542f\u52a8\u8fc7\u7a0b:","text":"\u6fc0\u6d3b CPU (\u8bfb\u53d6 ROM \u4e2d\u7684 boot \u7a0b\u5e8f,\u5c06\u6307\u4ee4\u5bc4\u5b58\u5668\u8bbe\u7f6e\u4e3a BIOS \u7684\u7b2c\u4e00\u6761\u6307\u4ee4,\u4e5f\u5c31\u662f\u5f00\u59cb\u6267\u884c BIOS \u7684\u6307\u4ee4) \n-> \u786c\u4ef6\u81ea\u68c0: BIOS \u6784\u5efa\u4e2d\u65ad\u5411\u91cf\u8868,\u68c0\u67e5\u786c\u4ef6\n-> \u52a0\u8f7d\u5e26\u6709\u64cd\u4f5c\u7cfb\u7edf\u7684\u786c\u76d8:\u8bfb\u53d6 Boot Sequence ,\u5c06\u63a7\u5236\u6743\u4ea4\u7ed9\u542f\u52a8\u987a\u5e8f\u5728\u7b2c\u4e00\u4f4d\u7684\u5b58\u50a8\u8bbe\u5907\n (\u6216\u8005\u548c\u7528\u6237\u4ea4\u4e92,\u6bd4\u5982\u53cc\u7cfb\u7edf\u9009\u62e9\u8fdb\u5165 ubuntu \u8fd8\u662f Windows \u7684\u65f6\u5019\u51fa\u73b0\u7684\u754c\u9762)\n \u7136\u540eCPU \u5c06\u5b58\u50a8\u8bbe\u5907\u5f15\u5bfc\u6247\u533a\u7684\u5185\u5bb9\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\n->\u52a0\u8f7d\u4e3b\u5f15\u5bfc\u8bb0\u5f55(MBR)<\u4f5c\u7528\u662f\u544a\u8bc9 CPU \u786c\u76d8\u7684\u54ea\u4e2a\u5206\u533a\u627e\u64cd\u4f5c\u7cfb\u7edf>:\u68c0\u67e5\u5b58\u50a8\u8bbe\u5907\u662f\u4e0d\u662f\u53ef\u5f15\u5bfc\u76d8,\u4e0d\u662f\u5c31\u5230\u4e0b\u4e00\u4e2a\u5b58\u50a8\u8bbe\u5907\n->\u626b\u63cf\u786c\u76d8\u5206\u533a\u8868,\u52a0\u8f7d\u786c\u76d8\u6d3b\u52a8\u5206\u533a:\u5c06\u63a7\u5236\u6743\u4ea4\u7ed9\u6d3b\u52a8\u5206\u533a(\u64cd\u4f5c\u7cfb\u7edf\u5728\u8fd9\u91cc)\n->\u52a0\u8f7d\u5206\u533a\u5f15\u5bfc\u8bb0\u5f55(PBR):\u8fd9\u662f\u6d3b\u52a8\u5206\u533a\u7684\u7b2c\u4e00\u4e2a\u6247\u533a,\u5bfb\u627e\u5e76\u6fc0\u6d3b\u6839\u76ee\u5f55\u4e0b\u7528\u4e8e\u5f15\u5bfc\u64cd\u4f5c\u7cfb\u7edf\u7684\u7a0b\u5e8f(\u542f\u52a8\u7ba1\u7406\u5668)\n->\u52a0\u8f7d\u542f\u52a8\u7ba1\u7406\u5668\n->\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf:\u5c06\u64cd\u4f5c\u7cfb\u7edf\u7684\u521d\u59cb\u5316\u7a0b\u5e8f\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u5f00\u59cb\u6267\u884c\n
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter2/","title":"Note chapter2","text":"\u7ebf\u7a0b\u662f CPU \u8c03\u5ea6\u7684\u57fa\u672c\u5355\u4f4d,\u53ef\u4ee5\u72ec\u7acb\u7684\u6267\u884c\u7a0b\u5e8f(\u5e76\u4e0d\u662f\u4e00\u5b9a\u8981\u8bf4\u8fdb\u7a0b)
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\u6bd4\u5982\u5e76\u53d1\u8fdb\u7a0b\u5171\u4eab\u53d8\u91cf\u7684\u65f6\u5019,\u5404\u4e2a\u8fdb\u7a0b\u6267\u884c\u7684\u5148\u540e\u987a\u5e8f\u4e0d\u540c\u53d8\u91cf\u7684\u6700\u7ec8\u7ed3\u679c\u4e5f\u6709\u53ef\u80fd\u4e0d\u540c\n
\u901f\u5ea6\u6700\u5feb\u7684\u8fdb\u7a0b\u901a\u4fe1\u65b9\u5f0f\u662f\u5171\u4eab\u5185\u5b58,\u6d88\u606f\u4f20\u9012\u9700\u8981\u62f7\u8d1d\u6570\u636e,\u4f20\u9012,\u6392\u961f\u7b49\u7b49,\u7ba1\u9053\u901a\u4fe1\u540c\u7406
\u5355\u5904\u7406\u5668\u7cfb\u7edf\u5b9e\u73b0\u5e76\u53d1\u6280\u672f\u540e,\u540c\u4e00\u65f6\u95f4\u6bb5\u5185\u5404\u4e2a\u8fdb\u7a0b\u5e76\u53d1\u8fd0\u884c,cpu \u548c I/O \u8bbe\u5907\u5e76\u884c\u5de5\u4f5c
\u7ebf\u7a0b\u7684\u4f18\u70b9\u6709\u63d0\u9ad8\u7cfb\u7edf\u5e76\u53d1\u6027,\u8282\u7ea6\u7cfb\u7edf\u8d44\u6e90,\u4fbf\u4e8e\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7b49\u7b49,\u4f46\u662f\u7ebf\u7a0b\u4f1a\u964d\u4f4e\u8fdb\u7a0b\u7684\u5b89\u5168\u6027,\u56e0\u4e3a\u4e00\u65e6\u4e00\u4e2a\u7ebf\u7a0b\u51fa\u73b0\u95ee\u9898,\u6574\u4e2a\u8fdb\u7a0b\u90fd\u6709\u53ef\u80fd\u51fa\u9519
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\u8fdb\u7a0b\u5524\u9192\u7684\u6982\u5ff5\u662f\u8bf4,\u5f53\u8fdb\u7a0b\u9700\u8981\u7684\u8d44\u6e90(\u4e0d\u5305\u62ecCPU)\u53ef\u7528\u7684\u65f6\u5019,\u8fdb\u7a0b\u88ab\u5524\u9192.
\u6240\u4ee5,\u65f6\u95f4\u7247\u7528\u5b8c\u4ee5\u540e\u4e0b\u4e00\u4e2a\u8fdb\u7a0b\u4e0a\u5904\u7406\u673a\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e0d\u80fd\u8bf4\u662f\u5524\u9192,\u56e0\u4e3a\u4e8b\u5b9e\u4e0a\u8fd9\u4e2a\u8fdb\u7a0b\u7b49\u5f85\u7684\u7cfb\u7edf\u8d44\u6e90\u662f\u5904\u7406\u673a\n
\u4e34\u754c\u8d44\u6e90\u53ea\u80fd\u540c\u65f6\u88ab\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528,\u5373\u4fbf\u662f\u7236\u5b50\u8fdb\u7a0b\u4e5f\u4e0d\u80fd\u540c\u65f6\u8bbf\u95ee,\u53e6\u5916\u7236\u5b50\u8fdb\u7a0b\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\u4e0d\u662f\u5171\u4eab\u7684,\u7236\u8fdb\u7a0b\u53ea\u53ef\u4e0e\u5b50\u8fdb\u7a0b\u5171\u4eab\u4e00\u90e8\u5206\u8d44\u6e90
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FCFS\u5229\u4e8e\u957f\u4f5c\u4e1a\uff0c\u800cCPU\u578b\u7e41\u5fd9\u4f5c\u4e1a\u4e5f\u8981\u957f\u65f6\u95f4\u5360\u7528CPU\uff0c\u56e0\u6b64\u7c7b\u4f3c\u4e8e\u957f\u4f5c\u4e1a\uff0c\u4ece\u800cFCFS\u7b97\u6cd5\u4e5f\u5229\u4e8eCPU\u7e41\u5fd9\u578b\u4f5c\u4e1a
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0\u65f6\u523b\u4e0a\u5904\u7406\u673a\u4e5f\u5c5e\u4e8e\u8fdb\u7a0b\u8c03\u5ea6\uff0c\u56e0\u6b64\u5982\u679c\u9898\u76ee\u95ee\u8c03\u5ea6\u6b21\u6570\u8bb0\u5f97\u52a0\u4e0a\u6700\u5f00\u59cb\u7684\u4e00\u6b21
\u6b63\u5728\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u8fdb\u7a0b\u7531\u4e8e\u8bf7\u6c42 I/O \u88ab\u963b\u585e\u65f6,\u8fd0\u6c14\u5176\u4ed6\u8fdb\u7a0b\u4e0a\u5904\u7406\u673a\u8fd0\u884c\u4f46\u662f\u4e0d\u5f97\u8fdb\u5165\u8be5\u8fdb\u7a0b\u6240\u9501\u5b9a\u7684\u4e34\u754c\u533a
\u5171\u4eab\u6570\u636e\u548c\u4e34\u754c\u8d44\u6e90\u7684\u6700\u5927\u533a\u522b\u5c31\u662f\u662f\u5426\u5728\u540c\u4e00\u65f6\u95f4\u5185\u53ea\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u8bbf\u95ee,\u5982\u516c\u7528\u961f\u5217
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\u7528 P,V \u64cd\u4f5c\u5b9e\u73b0\u8fdb\u7a0b\u540c\u6b65,\u4fe1\u53f7\u91cf\u7684\u521d\u503c\u5c31\u662f\u8d44\u6e90\u7684\u91cf\u5316
\u7eaf\u4ee3\u7801:\u53c8\u79f0\u53ef\u91cd\u5165\u4ee3\u7801,\u5141\u8bb8\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8bbf\u95ee
\u6b7b\u9501\u7684\u60c5\u51b5
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-chapter2/#process1-px-ifyavailable-py-something-process2-py-ifxavailable-px-something","title":"process1{\n P(X);\n if(Y.available){\n P(Y);\n something;\n }\n}\n\nprocess2{\n P(Y);\n if(X.available){\n P(X);\n something;\n }\n}\n
","text":"\u53ef\u80fd\u51fa\u73b0\u8fdb\u7a0b\u5168\u90e8\u88ab\u963b\u585e\u7684\u60c5\u51b5(n \u4e2a ),\u4f46\u662f\u5982\u679c\u6ca1\u6709\u963b\u585e,\u5c31\u7eea\u961f\u5217\u6700\u591a\u6709 n-1 \u4e2a\u8fdb\u7a0b(\u603b\u5171 n \u4e2a)
"},{"location":"Notebook/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F/note-%E6%A0%B8%E5%BF%83%E6%80%81%E6%8C%87%E4%BB%A4/","title":"Note \u6838\u5fc3\u6001\u6307\u4ee4","text":"\u5927\u591a\u6570\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u5305\u62ec\u56db\u4e2a\u65b9\u9762:
1.\u65f6\u949f\u7ba1\u7406\n2.\u4e2d\u65ad\u673a\u5236\n3.\u539f\u8bed\n4.\u7cfb\u7edf\u63a7\u5236\u7684\u6570\u636e\u7ed3\u6784\u548c\u5904\u7406\n
\u5c4f\u853d\u4e2d\u65ad
\u8bbe\u7f6e\u65f6\u949f\u7684\u503c
\u505c\u673a\u6307\u4ee4
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\u6570\u5b66\u5206\u6790(\u9648\u7eaa\u4fee)\u53c2\u8003\u7b54\u6848
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e00\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e8c\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u7b2c\u4e09\u5377
\u5409\u7c73\u591a\u7ef4\u5947\u603b\u5377
\u7ea6\u5b9a:
\\(I \\subset D_f\\)\u8868\u793a\\(f\\)\u5728\\(I\\)\u4e0a\u6709\u5b9a\u4e49 \\(A\\Rightarrow B\\),\u8868\u793a\\(A\\)\u8574\u542b\\(B\\) \\(f\\in B([a,b])\\),\u8868\u793a\\(f\\)\u5728\\([a,b]\\)\u4e0a\u6709\u754c \\(f\\in C([a,b])\\),\u8868\u793a\\(f\\)\u5728\\([a,b]\\)\u4e0a\u8fde\u7eed "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/","title":"\u96c6\u5408\u4e0e\u6620\u5c04","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#111","title":"\u5b9a\u7406 1.1.1","text":" \u53ef\u5217\u4e2a\u53ef\u6570\u96c6\u4e4b\u5e76\u4e5f\u662f\u53ef\u6570\u96c6 \u8bc1\u660e:\u5bf9\u89d2\u7ebf\u6cd5\u5219
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#112","title":"\u5b9a\u7406 1.1.2","text":" \u6709\u7406\u6570\u96c6\\(Q\\)\u662f\u53ef\u5217\u96c6 \u4f9d\u5b9a\u7406 1.1.1 \u53ea\u9700\u8bc1(0,1] \u95f4\u6709\u7406\u6570\u53ef\u5217,\u4efb\u610f\\(r\\in Q\\cap (0,1],\\exists p,q\\in N^+,s.t.\\;r=\\frac{p}{q}\\), \\(q=n\\)\u7684\u65e2\u7ea6\u5206\u6570\u6700\u591a\u6709\\(n-1\\) \u4e2a,\u4ece\u800c\u5f88\u5bb9\u6613\u6392\u6210\u4e00\u5217
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"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#123","title":"\u5b9a\u4e49 1.2.3","text":" \u82e5\u5b58\u5728\u5e38\u6570\\(m,M\\),s.t.\\(\\forall x\\in A,m\\leq f(x)\\leq M\\),\u5219\u79f0\\(f\\)\u5728\\(A\\)\u4e0a\u6709\u754c,\u5e76\u79f0\\(m,M\\)\u4e3a\\(f\\)\u5728\\(A\\)\u4e0a\u7684\u4e0b\u754c\u548c\u4e0a\u754c "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#124-126","title":"\u5b9a\u4e49 1.2.4-1.2.6","text":" \u5355\u8c03\u6027,\u5947\u5076\u6027,\u5468\u671f\u6027 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#121_1","title":"\u5b9a\u7406 1.2.1","text":" \u4e09\u89d2\u4e0d\u7b49\u5f0f:\\(\\forall a,b\\in R,||a|-|b||\\leq |a+b|\\leq |a|+|b|\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/01-%E9%9B%86%E5%90%88%E4%B8%8E%E6%98%A0%E5%B0%84/#122_1","title":"\u5b9a\u7406 1.2.2","text":" \u5e73\u5747\u503c\u4e0d\u7b49\u5f0f \u8bbe\\(a_1,a_2,\\cdots,a_n\\in R,\\)\u5219\u79f0\\(\\frac{a_1+a_2+\\cdots+a_n}{n}\\)\u4e3a\u7b97\u6570\u5e73\u5747\u6570,\u79f0\\(\\sqrt[n]{a_1a_2\\cdots a_n}\\)\u4e3a\u51e0\u4f55\u5e73\u5747\u6570, \u79f0\\(n/(\\frac{1}{a_1}+\\frac{1}{a_2}+\\cdots+\\frac{1}{a_n})\\)\u4e3a\u8c03\u548c\u5e73\u5747\u6570,\u5219\u6709 \\(\\(\\frac{a_1+a_2+\\cdots+a_n}{n}\\geq \\sqrt[n]{a_1a_2\\cdots a_n}\\geq n/(\\frac{1}{a_1}+\\frac{1}{a_2}+\\cdots+\\frac{1}{a_n})\\)\\)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/","title":"\u6570\u5217\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_2","title":"\u5b9e\u6570\u7cfb\u8fde\u7eed\u6027","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#211","title":"\u5b9a\u7406 2.1.1","text":"\u786e\u754c\u5b58\u5728\u539f\u7406-\u5b9e\u6570\u7cfb\u8fde\u7eed\u6027\u5b9a\u7406
\u975e\u7a7a\u6709\u4e0a\u754c\u7684\u6570\u96c6\u5fc5\u6709\u4e0a\u786e\u754c,\u975e\u7a7a\u6709\u4e0b\u754c\u7684\u6570\u96c6\u5fc5\u6709\u4e0b\u786e\u754c "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#212","title":"\u5b9a\u7406 2.1.2","text":" \u975e\u7a7a\u6709\u754c\u6570\u96c6\u7684\u4e0a(\u4e0b)\u786e\u754c\u552f\u4e00 note:Dedekind\u5206\u5272\u539f\u7406
\u5b9a\u4e49 1:\u8bbe\u4e24\u4e2a\u975e\u7a7a\u6709\u7406\u96c6\u5408\\(A,B\\)\u6ee1\u8db3\u5982\u4e0b\u6761\u4ef6:\\(Q=A\\cup B,\\forall a\\in A,b\\in B,a<b\\),\u5219\u79f0\\(A,B\\)\u4e3a\\(Q\\)\u7684\u4e00\u4e2a\u5207\u5272,\u8bb0\u4e3a\\(A/B\\)
\u4ece\u903b\u8f91\u4e0a\u8bb2,\u4efb\u4f55\u4e00\u4e2a\u5207\u5272\u53ea\u6709\u4ee5\u4e0b\u56db\u79cd\u60c5\u51b5\n1.\u96c6\u5408 A \u6709\u6700\u5927\u6570 a,\u96c6\u5408 B \u65e0\u6700\u5c0f\u6570\n2.\u96c6\u5408 A \u65e0\u6700\u5927\u6570,\u96c6\u5408 B \u6709\u6700\u5c0f\u6570b\n3.\u96c6\u5408 A \u65e0\u6700\u5927\u6570,\u96c6\u5408 B \u65e0\u6700\u5c0f\u6570\n4.\u96c6\u5408 A \u6709\u6700\u5927\u6570a,\u96c6\u5408 B \u6709\u6700\u5c0f\u6570b\n\n\u5bf9\u4e8e\u60c5\u51b5 4 \u662f\u4e0d\u53ef\u80fd\u7684,\u5982\u679c\u4e0d\u7136(a+b)/2 \u662f\u4ecb\u4e8e a,b \u4e4b\u95f4\u7684\u6709\u7406\u6570,\u4e0e A/B \u662f\u6709\u7406\u6570\u7684\u5206\u5272\u77db\u76fe\n\u5bf9\u4e8e\u60c5\u51b5 1,2,\u4ed6\u4eec\u786e\u5b9a\u4e86\u4e24\u4e2a\u6709\u7406\u6570,\u5bf9\u4e8e\u60c5\u51b5 3,\u4ed6\u4eec\u6ca1\u6709\u786e\u5b9a\u6709\u7406\u6570,\u5f15\u8fdb\u65e0\u7406\u6570\u7684\u6982\u5ff5\n
\u5b9a\u4e49 2:\u8bbe A/B \u662f\u6709\u7406\u6570\u96c6\u7684\u4e00\u4e2a\u5207\u5272,\u82e5 A \u6ca1\u6709\u6700\u5927\u6570,B \u6ca1\u6709\u6700\u5c0f\u6570,\u90a3\u4e48\u5c31\u79f0 A/B \u786e\u5b9a\u4e86\u4e00\u4e2a\u65e0\u7406\u6570 c,c \u5927\u4e8e A \u4e2d\u4efb\u4f55\u4e00\u4e2a\u6709\u7406\u6570,\u5c0f\u4e8e B \u4e2d\u4efb\u4f55\u4e00\u4e2a\u6709\u7406\u6570
\u5b9a\u4e49 3:\u6709\u6709\u7406\u6570\u548c\u5b9a\u4e49 2 \u786e\u5b9a\u7684\u5168\u4f53\u65e0\u7406\u6570\u6784\u6210\u4e86\u5b9e\u6570\u96c6\\(R\\)
Dedekind \u5207\u5272\u5b9a\u7406:\u8bbe A/B \u662f\u5b9e\u6570\u96c6\\(R\\) \u7684\u4e00\u4e2a\u5207\u5272,\u5219\u6216\u8005 A \u6709\u6700\u5927\u6570\u6216\u8005 B \u6709\u6700\u5c0f\u6570
\u8fd9\u91cc\u662f\u5bf9 R \u5207\u5272,\u548c Q \u5207\u5272\u4e0d\u540c.\u8bc1\u660e\u53ef\u7528\u53cd\u8bc1\u6cd5,\u6ce8\u610f\u8fd9\u91cc\u7684\u6216\u8005\u662f\u6392\u4e2d\u7684\n\n\u7531 Dedekind \u5207\u5272\u5b9a\u7406\u53ef\u4ee5\u8bc1\u660e\u786e\u754c\u5b58\u5728\u5b9a\u7406: \u5bf9\u975e\u7a7a\u6709\u4e0a\u754c\u7684\u6570\u96c6 S,\u8bbe A \u662f S \u7684\u4e0a\u754c\u7ec4\u6210\u7684\u96c6\u5408,B \u662f A \u7684\u8865,\u90a3\u4e48\u6216\u8005 B \u6709\u6700\u5927\u6570,\u6216\u8005 A \u6709\u6700\u5c0f\u6570(\u786e\u754c\u5b58\u5728)\n\u8bc1\u660e B \u6ca1\u6709\u6700\u5927\u6570:\u5982\u679c\u6709b \u662f B \u7684\u6700\u5927\u6570,\u7531\u4e8e b \u4e0d\u662f S \u7684\u4e0a\u754c,\u4ece\u800c\u5b58\u5728 s\\in S, s>b,\u90a3\u4e48 s \u4e00\u5b9a\u5728 B \u4e2d,\u4e0e b \u662f B \u7684\u6700\u5927\u6570\u77db\u76fe\n
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_3","title":"\u6570\u5217\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#221","title":"\u5b9a\u4e49 2.2.1","text":" \u8bbe\\(\\{x_n\\}\\)\u662f\u4e00\u4e2a\u6570\u5217,\u5982\u679c\\(\\exists a\\in R,s.t.\\forall \\varepsilon>0,\\exists N>0,s.t.\\forall n>N\\) ,\u6709\\(|x_n-a|<\\varepsilon\\),\u90a3\u4e48\u79f0\\(a\\)\u662f\u6570\u5217\\(\\{x_n\\}\\)\u7684\u6781\u9650, \u8bb0\u4e3a\\(\\lim\\limits_{n\\to\\infty}x_n=a\\),\u6216\u8005\\(x_n\\to a(n\\to\\infty)\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_4","title":"\u5b9a\u4e49:\u65e0\u7a77\u5c0f\u91cf","text":" \u79f0\u6781\u9650\u4e3a 0\u7684\u6570\u5217\u4e3a\u65e0\u7a77\u5c0f\u91cf,,\u65e0\u7a77\u5c0f\u91cf\u662f\u4e00\u4e2a\u53d8\u91cf,\\(\\{0,0,\\cdots,0\\}\\)\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u65e0\u7a77\u5c0f\u91cf, \u7531\u5b9a\u4e49\\(\\lim\\limits_{n\\to\\infty}x_n=a\\iff \\{x_n-a\\}\\)\u662f\u65e0\u7a77\u5c0f\u91cf "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#221_1","title":"\u5b9a\u7406 2.2.1","text":" \u6536\u655b\u6570\u5217\u6781\u9650\u552f\u4e00 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#222","title":"\u5b9a\u7406 2.2.2","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#223","title":"\u5b9a\u7406 2.2.3","text":" \u8bbe\u6570\u5217\\(\\{x_n\\},\\{y_n\\}\\)\u5206\u522b\u6536\u655b\u5230\\(a,b\\),\u4e14\\(a<b\\)\u90a3\u4e48 \\(\\exists N\\in N^+,\\forall n>N:x_n<y_n\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#_5","title":"\u63a8\u8bba","text":" \u6536\u655b\u6570\u5217\u6709\u4fdd\u53f7\u6027 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#224","title":"\u5b9a\u7406 2.2.4","text":" \u4e09\u4e2a\u6570\u5217\\(\\{x_n\\},\\{y_n\\},\\{z_n\\}\\),\u5982\u679c\\(\\exists N\\in N^+,s.t.\\forall n>N,x_n\\leq y_n\\leq z_n\\),\u4e14\\(\\lim\\limits_{n\\to\\infty}x_n=\\lim\\limits_{n\\to\\infty}z_n=a\\),\u90a3\u4e48\\(\\lim\\limits_{n\\to\\infty}y_n=a\\)
\u5939\u903c\u51c6\u5219
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#225","title":"\u5b9a\u7406 2.2.5","text":" \u6570\u5217\u6781\u9650\u7684\u56db\u5219\u8fd0\u7b97
\u8bbe\\(\\lim\\limits_{n\\to\\infty}x_n=a,\\lim\\limits_{n\\to\\infty}y_n=b\\),\u5219
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\u540c\u7406\u53ef\u4ee5\u5b9a\u4e49\u5355\u8c03\u51cf\u5c11\u6570\u5217\u548c\u4e25\u683c\u5355\u8c03\u51cf\u5c11\u6570\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#233-stolz","title":"\u5b9a\u7406 2.3.3 (Stolz\u5b9a\u7406)","text":" \u5982\u679c\\(\\{y_n\\}\\)\u4e3a\u4e25\u683c\u5355\u8c03\u589e\u52a0\u7684\u6b63\u65e0\u7a77\u5927\u91cf,\u5e76\u4e14\u6709\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n-x_{n-1}}{y_n-u_{n-1}}=a\\) ,\\(a\\)\u662f\u5e38\u6570\u6216\u8005\\(\u00b1\\infty\\),\u90a3\u4e48\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n}{y_n}=a\\)
\u8fd9\u91cc\\(a\\)\u662f\u65e0\u7a77\u7684\u65f6\u5019,\u5fc5\u987b\u6307\u5b9a\u662f\u6b63\u65e0\u7a77\u8fd8\u662f\u8d1f\u65e0\u7a77,\u5982\u679c\u662f\u8df3\u8dc3\u7684\u90a3\u4e48\\(Stolz\\)\u5b9a\u7406\u4e0d\u9002\u7528
\u8003\u8651\u4f8b\u5b50:\\(x_n=(-1)^nn,y_n=n\\),\u663e\u7136\\(\\lim\\limits_{n\\to\\infty}\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}=\\lim\\limits_{n\\to\\infty}(-1)^n(2n-1)=\\infty\\),\u4f46\u662f\\(\\frac{x_n}{y_n}=(-1)^n\\)\u4e0d\u5b58\u5728 \u5982\u679c\\(\\lim\\limits\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}\\)\u6781\u9650\u4e0d\u5b58\u5728\u4e5f\u4e0d\u80fd\u8bf4\u660e\\(\\lim\\frac{x_n}{y_n}\\)\u4e0d\u5b58\u5728
\u8003\u8651\u4f8b\u5b50:\\(x_n=1-2+\\cdots+(-1)^nn,y_n=n\\),\u663e\u7136\\(\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}=\\frac{(-1)^nn}{2n-1}\\) \u6781\u9650\u4e0d\u5b58\u5728,\u4f46\u662f\\(\\frac{x_n}{y_n} =\\frac{1/4-(n/2+1/4)(-1)^{n+1}}{n^2}\\to 0\\) Stolz\u5b9a\u7406\u53ea\u80fd\u662f\u5728\u6781\u9650\\(\\lim\\frac{x_n-x_{n-1}}{y_n-y_{n-1}}\\exists\\)\u65f6\u53bb\u53cd\u63a8\\(\\lim\\frac{x_n}{y_n}\\)
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\u4e14\\(\\lim\\limits_{n\\to\\infty}(b_n-a_n)=0\\),\u90a3\u4e48\u79f0\\(\\{[a_n,b_n]\\}\\)\u4e3a\u95ed\u533a\u95f4\u5957
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\u82e5\u6539\u6210\u5f00\u533a\u95f4:\u53ea\u6709\u5728\\(\\{(a_n,b_n)\\},a_1<a_2<\\cdots<a_n<\\cdots<b_n<\\cdots <b_1\\)\u7684\u60c5\u51b5\u4e0b\u6210\u7acb,\u4e0d\u80fd\u53d6\u7b49\u53f7,\u5426\u5219\u5982\\(\\{(0,\\frac{1}{n})\\}_{n=1}^\\infty\\)\u5c31\u662f\u4e00\u4e2a\u53cd\u4f8b "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#243","title":"\u5b9a\u7406 2.4.3","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#242_1","title":"\u5b9a\u4e49 2.4.2","text":" \u8bbe\\(\\{x_n\\}\\)\u662f\u4e00\u4e2a\u6570\u5217,\u800c\\(n_1,n_2,\\cdots\\)\u662f\u4e00\u4e2a\u9012\u589e\u7684\u6b63\u6574\u6570\u6570\u5217,\u90a3\u4e48\u79f0\\(\\{x_{n_k}\\}\\)\u4e3a\\(\\{x_n\\}\\)\u7684\u4e00\u4e2a\u5b50\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#244","title":"\u5b9a\u7406 2.4.4","text":" \u8bbe\\(\\{x_n\\}\\)\u6536\u655b\u5230\\(a\\),\u90a3\u4e48\u5176\u4efb\u4e00\u5b50\u5217\\(\\{x_{n_k}\\}\\)\u4e5f\u6536\u655b\u5230\\(a\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#245bolzano-weierstrass","title":"\u5b9a\u7406 2.4.5(Bolzano-Weierstrass\u5b9a\u7406)","text":" \u6709\u754c\u6570\u5217\u5fc5\u6709\u6536\u655b\u5b50\u5217 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#246","title":"\u5b9a\u7406 2.4.6","text":" \u82e5\\(\\{x_n\\}\\)\u662f\u65e0\u754c\u6570\u5217,\u90a3\u4e48\u5b58\u5728\u5b50\u5217\\(\\{x_{n_k}\\}\\)\u4e5f\u662f\u65e0\u754c\u7684 "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#243_1","title":"\u5b9a\u4e49 2.4.3(\u57fa\u672c\u5217)","text":" \u5bf9\u6570\u5217\\(\\{x_n\\},\\)\u82e5\\(\\forall\\epsilon>0,\\exists N>0,s.t.\\forall n,m>N,|x_m-x_n|<\\epsilon\\),\u5219\u79f0\u6570\u5217\u662f\u57fa\u672c\u6570\u5217(\u57fa\u672c\u5217,Cauchy \u5217) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#247cauchy","title":"\u5b9a\u7406 2.4.7(Cauchy \u6536\u655b\u51c6\u5219)","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/02-%E6%95%B0%E5%88%97%E6%9E%81%E9%99%90/#248","title":"\u5b9a\u7406 2.4.8","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/","title":"\u51fd\u6570\u6781\u9650\u548c\u8fde\u7eed\u51fd\u6570","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#_2","title":"\u51fd\u6570\u6781\u9650","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#311","title":"\u5b9a\u4e49 3.1.1","text":" \u8bbe\u51fd\u6570 \\(f(x)\\) \u5728\u70b9 \\(x_0\\) \u7684\u67d0\u4e2a\u53bb\u5fc3\u90bb\u57df\u5185\u6709\u5b9a\u4e49\uff0c\u5982\u679c\u5b58\u5728\u5e38\u6570 \\(A\\)\uff0c\u5bf9\u4e8e\u4efb\u610f\u7ed9\u5b9a\u7684\u6b63\u6570 \\(\\varepsilon\\)\uff0c\u603b\u5b58\u5728\u6b63\u6570 \\(\\delta\\)\uff0c\u4f7f\u5f97\u5f53 \\(x\\) \u6ee1\u8db3\u4e0d\u7b49\u5f0f \\(0 < |x - x_0| < \\delta\\) \u65f6\uff0c\u5bf9\u5e94\u7684\u51fd\u6570\u503c \\(f(x)\\) \u6ee1\u8db3\u4e0d\u7b49\u5f0f \\(|f(x) - A| < \\varepsilon\\)\uff0c\u90a3\u4e48\u5e38\u6570 \\(A\\) \u662f\\(f\\)\u5728\\(x_0\\)\u5904\u7684\u6781\u9650,\u8bb0\u4f5c\\(\\lim\\limits_{x \\to x_0} f(x) = A\\) \u6216 \\(f(x) \\to A\\)(\\(x \\to x_0\\) \u65f6) \\(\\lim\\limits_{x\\to x_0}f(x)=A\\iff \\forall\\epsilon>0,\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta)\\backslash\\{x_0\\}:|f(x)-A|<\\epsilon\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#311_1","title":"\u5b9a\u7406 3.1.1","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/03-%E5%87%BD%E6%95%B0%E6%9E%81%E9%99%90%E5%92%8C%E8%BF%9E%E7%BB%AD%E5%87%BD%E6%95%B0/#312","title":"\u5b9a\u7406 3.1.2","text":" \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A,\\lim\\limits_{x\\to x_0}g(x)=B\\)\u4e14\\(A>B\\),\u5219\\(\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta):f(x)>g(x)\\)
\u5c40\u90e8\u62a5\u5e8f\u6027
\u63a8\u8bba 1: \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A\\neq 0\\)\u5219\\(\\exists\\delta>0,s.t.\\forall x\\in O(x_0,\\delta):|f(x)| > \\frac{|A|}{2}\\) \u63a8\u8bba 2: \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A,\\lim\\limits_{x\\to x_0}g(x)=B,\\)\u4e14\\(\\exists r>0,s.t.\\forall x\\in O(x_0,r):g(x)\\leq f(x)\\),\u5219:\\(\\(B\\leq A\\)\\)
\u5c31\u7b97\\(g(x)<f(x)\\),\u4e5f\u4e0d\u80fd\u63a8\u51fa\\(B<A\\),\u4f8b\u5982\\(f(x)=1,g(x)=1-x,x_0=0:A=B=1\\) \u63a8\u8bba 3(\u5c40\u90e8\u6709\u754c\u6027): \u82e5\\(\\lim\\limits_{x\\to x_0}f(x)=A\\),\u5219\\(\\exists\\delta>0,s.t.f\\) \u5728\\(O(x_0,\\delta)\\)\u4e2d\u6709\u754c
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\u5939\u903c\u6027
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\u5de6\u5bfc\u6570\u548c\u53f3\u5bfc\u6570
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F(\\varphi^{-1}(x))+C\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/06-%E4%B8%8D%E5%AE%9A%E7%A7%AF%E5%88%86/#_9","title":"\u5206\u90e8\u79ef\u5206\u6cd5","text":" \\(\\int u(x)v'(x)dx = u(x)v(x) - \\int u'(x)v(x)dx\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/06-%E4%B8%8D%E5%AE%9A%E7%A7%AF%E5%88%86/#_10","title":"\u57fa\u672c\u79ef\u5206\u8868","text":"\\(\\begin{aligned} & \\int x^\\alpha \\mathrm{d} x = \\begin{cases} \\frac{1}{\\alpha+1} x^{\\alpha+1}+C, & \\alpha \\neq -1, \\\\ \\ln |x|+C, & \\alpha=-1 ; \\end{cases} & \\int \\ln x \\mathrm{~d} x = x(\\ln x-1)+C ; \\\\ & \\int a^x \\mathrm{~d} x = \\frac{a^x}{\\ln a}+C, \\text{ \u7279\u522b\u5730 } \\int \\mathrm{e}^x \\mathrm{~d} x = \\mathrm{e}^x+C ; & \\int \\sin x \\mathrm{~d} x = -\\cos x+C ; \\\\ & \\int \\cos x \\mathrm{~d} x = \\sin x+C \\text{;} & \\int \\tan x \\mathrm{~d} x = -\\ln |\\cos x|+C ;\\\\ & \\int \\cot x \\mathrm{~d} x = \\ln |\\sin x|+C \\text{;} & \\int \\sec x \\mathrm{~d} x = \\ln |\\sec x+\\tan x|+C ; \\\\ & \\int \\csc x \\mathrm{~d} x = \\ln |\\csc x-\\cot x|+C ; & \\int \\operatorname{sh} x \\mathrm{~d} x = \\operatorname{ch} x+C ; \\\\ & \\int \\operatorname{ch} x \\mathrm{~d} x = \\operatorname{sh} x+C ; & \\int \\frac{\\mathrm{d} x}{\\sqrt{a^2-x^2}} = \\arcsin \\frac{x}{a}+C ; \\\\ & \\int \\frac{\\mathrm{d} x}{\\sqrt{x^2 \\pm a^2}} = \\ln \\left|x+\\sqrt{x^2 \\pm a^2}\\right|+C ; & \\int \\frac{\\mathrm{d} x}{x^2-a^2} = \\frac{1}{2 a} \\ln \\left|\\frac{x-a}{x+a}\\right|+C ; \\\\ & \\int \\frac{\\mathrm{d} x}{x^2+a^2} = \\frac{1}{a} \\arctan \\frac{x}{a}+C ; & \\int \\sqrt{a^2-x^2} \\mathrm{~d} x = \\frac{1}{2} x \\sqrt{a^2-x^2}+\\frac{a^2}{2} \\arcsin \\frac{x}{a}+C ; \\\\ & \\int \\sqrt{x^2 \\pm a^2} \\mathrm{~d} x = \\frac{1}{2}\\left(x \\sqrt{x^2 \\pm a^2} \\pm a^2 \\ln \\left|x+\\sqrt{x^2 \\pm a^2}\\right|\\right)+C . \\end{aligned}\\)
\u4e00\u4e9b\u8bc1\u660e: \\(\\int \\sec(x)dx = \\int \\frac{1}{\\cos(x)}dx = \\int \\frac{1}{\\cos^2(x)}d\\sin(x) \\overset{t=\\sin(x)}{=} \\int \\frac{1}{2}\\ln(|\\frac{t+1}{t-1}|) = \\ln(|\\frac{1+\\sin(x)}{\\cos(x)}|) = \\ln(|\\sec(x)+\\tan(x)|) +C\\) \\(\\int \\frac{dx}{\\sqrt{a^2-x^2}} = \\int \\frac{dx}{\\sqrt{a^2(1-\\frac{x^2}{a^2})}} = \\int \\frac{dx}{a\\sqrt{1-(\\frac{x}{a})^2}} \\overset{t=\\frac{x}{a}}{=} \\int \\frac{dt}{\\sqrt{1-t^2}} = \\arcsin(t)+C = \\arcsin(\\frac{x}{a}) + C\\) \\(\\int\\frac{dx}{\\sqrt{x^2\\pm a^2}} = \\int\\frac{dx}{\\sqrt{a^2(1\\pm\\frac{x^2}{a^2})}} = \\int\\frac{dx}{a\\sqrt{1\\pm(\\frac{x}{a})^2}} \\overset{t=\\frac{x}{a}}{=} \\int\\frac{dt}{\\sqrt{1\\pm t^2}} = \\ln(|t+\\sqrt{1+t^2}|) = \\ln(|\\frac{x}{a}+\\sqrt{1+(\\frac{x}{a})^2}|) + C = \\ln(|x+\\sqrt{x^2\\pm a^2}|) + C\\) \\(\\int\\sqrt{a^2-x^2}dx\\overset{x = a\\cos(\\theta)}{=} -\\int |a^2\\sin^2(\\theta)d\\theta = -a^2\\int \\frac{1-2\\cos(2\\theta)}{2}d\\theta = -\\frac{1}{2}a^2\\theta+\\frac{1}{2}\\sin(\\theta)\\cos(\\theta)+C = -\\frac{1}{2}a^2\\cos(\\frac{x}{a})+\\frac{1}{2}\\frac{x}{a}\\sin(\\frac{x}{a}) + C= \\frac{1}{2}x\\sqrt{a^2-x^2}+\\frac{a^2}{2}\\arcsin(\\frac{x}{a})+C\\)
\\(\\begin{aligned} & \\sqrt{x^2-a^2}=a \\tan t, \\Rightarrow d x=a \\sec t \\tan t d t , \\\\ & \\int \\sqrt{x^2-a^2} d x=a^2 \\int \\sec t \\tan ^2 t d t=a^2 \\int \\sec t\\left(\\sec ^2 t-1\\right) d t \\\\ & =a^2 \\int \\sec ^3 t d t-a^2 \\int \\sec t d t \\\\ & =a^2 \\int \\sec ^3 t d t-a^2 \\ln |\\sec t+\\tan t|+C_1 \\\\ & \\int \\sec ^3 t=\\int \\frac{d(\\sin t)}{\\left(1-\\sin ^2 t\\right)^2}=\\frac{1}{4} \\int\\left(\\frac{1}{1+\\sin t}+\\frac{1}{1-\\sin t}\\right)^2 d(\\sin t) \\\\ & =\\frac{1}{4} \\int \\frac{d(1+\\sin t)}{(1+\\sin t)^2}-\\frac{1}{4} \\int \\frac{d(1-\\sin t)}{(1-\\sin t)^2}+\\frac{1}{2} \\int \\frac{d(\\sin t)}{1-\\sin ^2 t} \\\\ & =\\frac{1}{4}\\left(\\frac{1}{1-\\sin t}-\\frac{1}{1+\\sin t}\\right)+\\frac{1}{4} \\ln \\left(\\frac{1+\\sin t}{1-\\sin t}\\right)+C_2 \\\\ & =\\frac{1}{2} \\tan t \\sec t+\\frac{1}{2} \\ln (\\sec t+\\tan t)+C_2 \\\\ & \\int \\sqrt{x^2-a^2} d x=\\frac{a^2}{2} \\tan t \\sec t+\\frac{a^2}{2} \\ln |\\sec t+\\tan t|-a^2 \\ln |\\sec t+\\tan t|+C \\\\ & =\\frac{a^2}{2} \\tan t \\sec t-\\frac{a^2}{2} \\ln |\\sec t+\\tan t|+C \\\\ & =\\frac{x}{2} \\sqrt{x^2-a^2}-\\frac{a^2}{2} \\ln \\left|\\frac{x}{a}+\\frac{\\sqrt{x^2-a^2}}{a}\\right|+C \\end{aligned}\\)
\\(\\int\\sqrt{x^2+a^2}dx\\)\u540c\u7406
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%88%86%E6%9E%90/06-%E4%B8%8D%E5%AE%9A%E7%A7%AF%E5%88%86/#_11","title":"\u6709\u7406\u51fd\u6570\u7684\u4e0d\u5b9a\u79ef\u5206\u53ca\u5176\u5e94\u7528","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/","title":"\u6570\u5b66\u5efa\u6a21","text":"\u8c08\u4e4b\u5955
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/01-%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1%E6%A6%82%E8%AE%BA/","title":"\u6982\u8bba","text":"\u6ca1\u4ec0\u4e48\u597d\u8bf4\u7684\uff0c\u5c31\u662f\u6570\u5b66\u5efa\u6a21\u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u8fd9\u91cc\u5c31\u4e0d\u518d\u8d58\u8ff0\u4e86\u3002
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/","title":"PageRank","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_1","title":"\u4e92\u8054\u7f51\u4e2d\u7684\u7f51\u9875\u901a\u8fc7\u8d85\u94fe\u63a5\u8fde\u63a5","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_2","title":"\u7f51\u9875\u91cd\u8981\u5ea6","text":"\u4e00\u4e2a\u7f51\u9875\u91cd\u8981,\u662f\u56e0\u4e3a\u6709\u91cd\u8981\u7684\u7f51\u9875\u94fe\u63a5\u5230\u5b83
\u5bf9\u6bcf\u4e00\u4e2a\u7f51\u9875,\u5b9a\u4e49\u4e00\u4e2a\u91cd\u8981\u5ea6,\u4f5c\u4e3a\u7f51\u9875\u6392\u5e8f\u7684\u89c4\u5219\n\u94fe\u63a5\u5230\u7f51\u9875\u7684\u7f51\u9875\u5bf9\u8fd9\u4e2a\u7f51\u9875\u7684\u91cd\u8981\u90fd\u90fd\u6709\u8d21\u732e,\u8d21\u732e\u7684\u5927\u5c0f\u548c\u81ea\u8eab\u7684\u91cd\u8981\u5ea6\u6709\u5173\n\n\u2022(\u4f20\u9012\u6027)\u91cd\u8981\u5ea6\u5927\u7684\u7f51\u9875\u94fe\u63a5\u5230\u7f51\u9875A\u65f6\u5bf9\u7f51\u9875A\u7684\u91cd\u8981\u5ea6\u7684\u8d21\u732e\u6bd4\u91cd\u8981\u5ea6\u5c0f\u7684\u7f51\u9875\u94fe\u63a5\u5230\u7f51\u9875A\u65f6\u5bf9\u7f51\u9875A\u7684\u91cd\u8981\u5ea6\u7684\u8d21\u732e\u5927\n\n \u2022\u67d0\u7f51\u9875\u5bf9\u5176\u5b83\u7f51\u9875\u91cd\u8981\u5ea6\u7684\u8d21\u732e\u4e4b\u548c\u7b49\u4e8e\u5b83\u7684\u91cd\u8981\u5ea6\n\n\u2022(\u7b49\u6548\u6027)\u7f51\u9875\u5bf9\u5b83\u6240\u94fe\u63a5\u7684\u6bcf\u4e2a\u7f51\u9875\u7684\u91cd\u8981\u5ea6\u7684\u8d21\u732e\u76f8\u7b49\n\n \u2022 \u67d0\u7f51\u9875\u5bf9\u5176\u5b83\u7f51\u9875\u7684\u91cd\u8981\u5ea6\u8d21\u732e\u4e0e\u5b83\u6240\u94fe\u63a5\u7684\u7f51\u9875\u6570\u91cf\u5448\u53cd\u6bd4\n\n\u2022(\u53e0\u52a0\u6027)\u94fe\u63a5\u5230\u7f51\u9875A\u7684\u7f51\u9875\u8d8a\u591a\uff0c\u7f51\u9875A\u8d8a\u91cd\u8981\n\n \u2022 \u7f51\u9875A\u7684\u91cd\u8981\u5ea6\u662f\u6240\u6709\u94fe\u63a5\u5230A\u7684\u7f51\u9875\u5bf9\u7f51\u9875A\u7684\u91cd\u8981\u5ea6\u7684\u8d21\u732e\u4e4b\u548c\n\n\u2022(\u65e0\u5173\u6027)\u7f51\u9875\u94fe\u63a5\u5176\u5b83\u7f51\u9875\u7684\u591a\u5c11\uff0c\u4e0e\u5176\u672c\u8eab\u7684\u91cd\u8981\u5ea6\u65e0\u5173\n
\u5b9e\u9645\u4e0a\u8fd9\u5c31\u662f\u4e00\u4e2a\u6709\u5411\u8d4b\u6743\u56fe
\u5982\u4f55\u8ba1\u7b97\u5462\uff1f $$ x_j=\\frac{x_{j_1}}{q_{j_1}} + \\frac{x_{j_2}}{q_{j_2}} + \\cdots + \\frac{x_{j_k}}{q_{j_k}}=\\sum_{i=1}^{n}p_{i,j}x_i\\ X=\\begin{bmatrix} x_1 \\ x_2 \\ \\vdots \\ x_n \\end{bmatrix}\\ \\ p_{i,j}=\\begin{cases} \\frac{1}{q_j} & \\text{\u5982\u679c\u7f51\u9875j\u94fe\u63a5\u5230\u7f51\u9875i} \\ 0 & \\text{\u5176\u4ed6} \\end{cases} then:X=PX $$
\u4e00\u5b9a\u6709\u975e\u96f6\u89e3\u5417\uff1f
\u6ce8\u610f\u5230\\(P\\)\u7684\u6bcf\u4e00\u5217\u5143\u7d20\u4e4b\u548c\u4e3a1,\u6240\u4ee5 P \u662f\u5217\u968f\u673a\u77e9\u9635
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_3","title":"\u968f\u673a\u77e9\u9635","text":"\u5404\u884c\uff08\u5217\uff09\u5143\u7d20\u4e4b\u548c\u5747\u4e3a1\u7684\u975e\u8d1f\u65b9\u9635\u79f0\u4e3a\u884c(\u5217)\u968f\u673a\u77e9\u9635(row(column) stochastic matrix)
\u5404\u884c\u4e0e\u5404\u5217\u5143\u7d20\u4e4b\u548c\u5747\u4e3a1\u7684\u975e\u8d1f\u65b9\u9635\u79f0\u4e3a\u53cc\u968f\u673a\u77e9\u9635(doubly stochastic matrix)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#1","title":"\u4efb\u610f\u968f\u673a\u77e9\u9635\u7684\u6a21\u6700\u5927\u7279\u5f81\u503c\u662f1","text":"\u8bbe\\(\\lambda\\)\u662f\u77e9\u9635\\(P\\)\u7684\u7279\u5f81\u503c,\u975e\u96f6\u5411\u91cf\\(X\\)\u662f\u5bf9\u5e94\u7684\u7279\u5f81\u5411\u91cf,\u8bbe\\(|x_s|=\\max |x_i|\\),\u5219
\\[ \\lambda X=PX\\Rightarrow\\lambda x_s = \\sum_{i=1}^{n}p_{i,s}x_i\\Rightarrow \\lambda x_s = \\sum_{i=1}^{n}p_{i,s}x_i\\\\ then:|\\lambda|| x_s| = |\\sum_{i=1}^{n}p_{i,s}x_i|\\leq \\sum_{i=1}^{n}|p_{i,s}||x_i|\\leq |x_s|\\sum_{i=1}^{n}|p_{i,s}|=|x_s|\\\\ then:|\\lambda|\\leq 1 \\]"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_4","title":"\u94fe\u63a5\u77e9\u9635\u7684\u4fee\u6b63","text":"\u60ac\u6302\u7f51\u9875:\u6ca1\u6709\u94fe\u63a5\u51fa\u53bb\u7684\u7f51\u9875,\u4e5f\u5c31\u662f\u4e0d\u94fe\u63a5\u4efb\u4f55\u7f51\u9875\u7684\u7f51\u9875\n
\u7f51\u9875\u56e2,\u76f8\u5f53\u4e8e\u4e00\u90e8\u5206\u7f51\u9875\u4e92\u76f8\u94fe\u63a5,\u4f46\u662f\u4e0d\u94fe\u63a5\u5230\u5916\u90e8\n\u6bd4\u5982\u6296\u97f3\u548c\u5feb\u624b\u76f8\u4e92\u94fe\u63a5,YouTube \u548c Facebook \u76f8\u4e92\u94fe\u63a5\n
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/02-PageRank/#_5","title":"\u73b0\u5728\u53ef\u4ee5\u6c42\u89e3\u91cd\u8981\u5ea6","text":"\u89e3\u51b3\u552f\u4e00\u6027:\u5b8c\u5168\u6b63,\u5217\u968f\u673a\u77e9\u9635\u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf\u662f\u552f\u4e00\u7684
\u5148\u8bc1\u660e\u5176\u7279\u5f81\u5411\u91cf\u7684\u5206\u91cf\u548c\u4e0d\u4e3a 0
\u8bbe\\(\\mathbf{X}=\\left(x_1, \\cdots, x_n\\right)^{\\top}\\) \u4e3a\u5b8c\u5168\u6b63,\u5217\u968f\u673a\u77e9\u9635\\(\\mathbf{P}\\) \u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf\uff0c\u5219 \\(x_i=\\sum\\limits_{j=1}^n p_{i j} x_j\\)
\u8fd9\u91cc\u662f\u4e25\u683c\u5c0f,\u56e0\u4e3a\u6709\u8d1f\u6570 - \u82e5\\(\\sum\\limits_{i=1}^n x_i=0\\),\u5219\\(\\mathbf{X}\\) \u7684\u5206\u91cf\u6709\u6b63\u6709\u8d1f\uff0c\u6545\\(\\left|x_i\\right|=\\left|\\sum\\limits_{j=1}^n p_{i j} x_j\\right|<\\sum_{j=1}^n p_{i j}\\left|x_j\\right|, i=1, \\cdots, n\\) - \\(\\sum\\limits_{i=1}^n\\left|x_i\\right|<\\sum\\limits_{i=1}^n \\sum\\limits_{j=1}^n p_{i j}\\left|x_j\\right|=\\sum\\limits_{j=1}^n\\left|x_j\\right|\\left(\\sum\\limits_{i=1}^n p_{i j}\\right)=\\sum\\limits_{j=1}^n\\left|x_j\\right| \\quad\\) \u77db\u76fe
\u518d\u8bc1\u660e\u552f\u4e00\u6027,\u8fd9\u91cc\u5982\u679c v \u548c w \u662f\u4e00\u6837\u7684\u6309\u5b9a\u4e49 x \u5c31\u662f\u96f6\u5411\u91cf
\u8bbe \\(\\mathbf{v}=\\left(v_1, \\cdots, v_n\\right)^{\\mathrm{T}}\\) \u548c \\(\\mathbf{w}=\\left(w_1, \\cdots, w_n\\right)^{\\mathrm{T}}\\) \u662f\u5b8c\u5168\u6b63\u3001\u5217\u968f\u673a\u77e9\u9635 \\(\\mathbf{P}\\) \u7684\u4e24\u4e2a\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7ebf\u6027\u65e0\u5173\u7684\u7279\u5f81\u5411\u91cf\u3002\u4ee4 \\(x_i=-\\frac{W}{V} v_i+w_i, i=1, \\cdots, n\\) \uff0c\u5176\u4e2d \\(V=\\sum\\limits_{k=1}^n v_k \\neq 0 \uff0c W=\\sum_{k=1}^n w_k\\) \u7531 \\(\\mathbf{v}\\) \u548c \\(\\mathbf{w}\\) \u7ebf\u6027\u65e0\u5173\uff0c\u4e0e \\(\\sum\\limits_{j=1}^n p_{i j} x_j=\\sum\\limits_{j=1}^n p_{i j}\\left(-\\frac{W}{V} v_j+w_j\\right)=-\\frac{W}{V} \\sum\\limits_{j=1}^n p_{i j} v_j+\\sum_{j=1}^{k=1} p_{i j} w_j=-\\frac{W}{V} v_i+w_i=x_i\\) \uff0c\u53ef\u77e5 \\(\\mathbf{x}=\\left(x_1, \\cdots, x_n\\right)\\) \u4e3a \\(\\mathbf{P}\\) \u7684\u5c5e\u4e8e\u7279\u5f81\u503c 1 \u7684\u7279\u5f81\u5411\u91cf \\(\\sum\\limits_{i=1}^n x_i=\\sum_{i=1}^n\\left(-\\frac{W}{V} v_i+w_i\\right)=-\\frac{W}{V} \\sum\\limits_{i=1}^n v_i+\\sum\\limits_{i=1}^n w_i=0 \\quad\\) \u77db\u76fe
\u8fd9\u6837\u5c31\u6c42\u51fa\u4e86\u7f51\u9875\u7684\u91cd\u8981\u5ea6
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/","title":"Nim \u6e38\u620f","text":"\u4e00\u5171\u6709 n \u5806\u786c\u5e01,\u6ca1\u5806\u6570\u91cf\u4e00\u5b9a,\u4e24\u4e2a\u4eba\u4f9d\u6b21\u53d6\u786c\u5e01,\u6bcf\u6b21\u4ece\u4e00\u5806\u4e2d\u53d6,\u6bcf\u6b21\u81f3\u5c11\u53d6\u4e00\u679a,\u53d6\u5230\u6700\u540e\u4e00\u679a\u786c\u5e01\u7684\u4eba\u83b7\u80dc
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_1","title":"\u5206\u6790","text":"\u7528\u5411\u91cf(i,j,k)\u8868\u793a\u5806\u548c\u5806\u6570
\\((1,1)\\) \u540e\u624b\u5fc5\u80dc
\\((1,i)\\) \u5148\u624b\u5fc5\u80dc
\u53ea\u9700\u53d6 \\((0,i-1)\\) \u4e2a\u8f6c\u5316\u6210\u7b2c\u4e00\u79cd\u60c5\u51b5,\u8fd9\u6837\u540e\u624b\u5fc5\u8d25
\\((i,i)\\) \u540e\u624b\u5fc5\u80dc
\u5982\u679c\u5148\u624b\u53d6\u5b8c\u67d0\u4e00\u5806\u5219\u76f4\u63a5\u80dc\u5229,\u5426\u5219\u82e5\u5148\u624b\u53d6\\((j,0)\\),\u540e\u624b\u53d6\\((0,j)\\),\u76f4\u5230\u6700\u540e\u53d8\u6210\\((1,1)\\),\u6216\u8005\\((0,k)\\)
\\((i,j)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((0,j-i)\\),(\u5047\u5b9a\\(j>i\\))\u8f6c\u5316\u6210\u7b2c\u4e09\u79cd\u60c5\u51b5,\u540e\u624b\u5fc5\u8d25
\u4e09\u4e2a\u5806\u7684\u60c5\u51b5:
\\((1,1,1)\\) \u5148\u624b\u5fc5\u80dc
\\((1,1,i)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((0,0,i)\\)\u5373\u53ef
\\((1,i,i)\\) \u5148\u624b\u5fc5\u80dc
\u53d6\\((1,0,0)\\)\u5373\u53ef,\u8f6c\u5316\u6210\u540e\u624b\u5fc5\u80dc\u7684\\((i,i)\\) \u60c5\u51b5
\\((i,i,j)\\) \u5148\u624b\u5fc5\u80dc
\u540c\u7406,\u76f4\u63a5\u628a j \u53d6\u6389
\\((i,j,k)\\) \u4e0d\u786e\u5b9a\u4e86
\u90a3\u4e48\u5982\u4f55\u5fc5\u80dc\u5462(\u53ef\u4ee5\u5417?)?
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_2","title":"\u5b89\u5168\u72b6\u6001","text":" \u5bf9\u5df1\u65b9\u53d6\u540e\u5f62\u6210\u7684\u67d0\u4e2a\u72b6\u6001
\u2022\u82e5\u65e0\u8bba\u5bf9\u65b9\u5982\u4f55\u53d6\u5747\u4e0d\u4f1a\u83b7\u80dc\uff0c\u72b6\u6001\uff08\u5bf9\u5df1\u65b9\uff09\u4e3a\u5b89\u5168\u7684
\u81f3\u5c11\u6709\u4e24\u5806\u786c\u5e01\u7684\u72b6\u6001\u662f\u5b89\u5168\u7684\n
\u2022\u82e5\u5bf9\u65b9\u81f3\u5c11\u5b58\u5728\u4e00\u79cd\u83b7\u80dc\u7684\u53d6\u6cd5\uff0c\u72b6\u6001\uff08\u5bf9\u5df1\u65b9\uff09\u4e3a\u4e0d\u5b89\u5168\u7684
\u53ea\u6709\u4e00\u5806\u786c\u5e01\u7684\u72b6\u6001\u662f\u4e0d\u5b89\u5168\u7684\n
\u2022\u4e0d\u8bba\u5bf9\u65b9\u5982\u4f55\u53d6\uff0c\u5df1\u65b9\u4e0b\u4e00\u6b21\u53d6\u540e\u5747\u53ef\u53d8\u4e3a\u4e00\u4e2a\u5b89\u5168\u72b6\u6001\u7684\u72b6\u6001\u4e5f\u662f\u5b89\u5168\u7684
\u2022\u82e5\u5bf9\u65b9\u81f3\u5c11\u5b58\u5728\u4e00\u79cd\u53d6\u6cd5\uff0c\u5df1\u65b9\u4e0b\u4e00\u6b21\u53d6\u65e0\u6cd5\u53d8\u4e3a\u4e00\u4e2a\u5b89\u5168\u72b6\u6001\u7684\u72b6\u6001\u4e5f\u662f\u4e0d\u5b89\u5168\u7684
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/03-NIM%E6%B8%B8%E6%88%8F/#_3","title":"\u5982\u4f55\u53d6\u80dc","text":"\u8ba9\u81ea\u5df1\u53d6\u5b8c\u4ee5\u540e\u53d8\u6210\u5b89\u5168\u72b6\u6001
\u5c06\u6bcf\u4e00\u5806\u786c\u5e01\u7684\u6570\u91cf\u8f6c\u5316\u6210\u4e8c\u8fdb\u5236,\u7136\u540e\u5bf9\u6bcf\u4e00\u4f4d\u6c42\u548c\uff0c\u79f0\u5176\u5c3e\u6570\u4e3a\u4f4d\u548c
\u53ea\u6709\u4e00\u5806\u786c\u5e01\u65f6\uff0c\u4f4d\u548c\u4e0d\u53ef\u80fd\u5168\u662f0\n\u6bcf\u6b21\u53d6\u786c\u5e01\u65f6\uff0c\u81f3\u5c11\u6709\u4e00\u4e2a\u4f4d\u548c\u53d1\u751f\u53d8\u5316\n
\u82e5\u6240\u6709\u4f4d\u548c\u90fd\u662f 0\uff0c\u5219\u72b6\u6001\u662f\u5b89\u5168\u7684\uff0c\u5426\u5219\u4e0d\u5b89\u5168
\u5982\u679c\u5f53\u524d\u72b6\u6001\u5b89\u5168\uff0c\u65e0\u8bba\u600e\u4e48\u53d6\u90fd\u4f1a\u4e0d\u5b89\u5168 \u5982\u679c\u5f53\u524d\u72b6\u6001\u4e0d\u5b89\u5168\uff0c\u90a3\u4e48\u5b58\u5728\u4e00\u79cd\u53d6\u6cd5\u4f7f\u5f97\u4e0b\u4e00\u72b6\u6001\u5b89\u5168
\u4ece\u5de6\u5230\u53f3\u786e\u5b9a\u7b2c\u4e00\u4e2a\u4f4d\u548c\u4e3a 1 \u7684\u4f4d\uff0c\u7136\u540e\u627e\u8be5\u4f4d\u6570\u5b57\u4e3a 1 \u7684\u5806\uff0c\u4ece\u4e2d\u53d6\u8d70\u4e00\u4e9b\u786c\u5e01\u4f7f\u5f97\u72b6\u6001\u53d8\u6210\u5b89\u5168\u72b6\u6001
python\u5b9e\u73b0
\u5728\u7ebf\u8fd0\u884c
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/04-%E4%BC%AA%E5%B8%81%E8%BE%A8%E8%AF%86/","title":"\u4f2a\u5e01\u8fa8\u8bc6","text":"\u540e\u4e00\u6b21\u79f0\u91cf\u4f9d\u8d56\u4e8e\u4e4b\u524d\u7684\u79f0\u91cf\u7ed3\u679c\u7684\u65b9\u6848\u79f0\u4e3a\u81ea\u9002\u5e94\u7684,\u5426\u5219\u79f0\u4e3a\u975e\u81ea\u9002\u5e94\u7684
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/04-%E4%BC%AA%E5%B8%81%E8%BE%A8%E8%AF%86/#12","title":"12 \u4e2a\u786c\u5e01\u4e2d\u6709\u4e00\u4e2a\u5047\u5e01,\u4e0d\u77e5\u8f7b\u91cd,\u7528\u4e09\u6b21\u79f0\u91cf\u627e\u51fa\u8fd9\u4e2a\u5047\u5e01","text":"\u5bf9\u4efb\u610f\u6574\u6570\\(w>2\\):\u82e5\\(3\\leq n \\leq\\frac{3^w-3}{2}\\),\u5219\u5b58\u5728\u975e\u81ea\u9002\u5e94\u7684\u79f0\u91cf\u65b9\u6848,\u4f7f\u7528 w \u6b21\u79f0\u91cf\u53ef\u4ee5\u4ece n \u679a\u786c\u5e01\u4e2d\u786e\u5b9a\u4f2a\u5e01\u5e76\u5224\u5b9a\u8f7b\u91cd,\u4e0d\u7136\u5219\u4e0d\u5b58\u5728
\u901a\u8fc7\u6784\u9020 Dyson \u96c6\u6765\u786e\u5b9a\u6bcf\u4e2a\u786c\u5e01\u5728\u6bcf\u6b21\u79f0\u91cf\u4e2d\u7684\u4f4d\u7f6e
RESOURES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/","title":"\u79d8\u5bc6\u5171\u4eab","text":""},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#shamir","title":"Shamir\u95e8\u9650\u673a\u5236","text":"\u5f88\u7b80\u5355,\u5b9e\u9645\u4e0a\u5c31\u662f\u6c42\u89e3\u7ebf\u6027\u65b9\u7a0b\u7ec4
\u5047\u8bbe\u6709\\(n\\)\u4e2a\u4eba,\u5e0c\u671b\\(t,(t<n)\\)\u4e2a\u4eba\u63d0\u4f9b\u4fe1\u606f\u7684\u65f6\u5019\u80fd\u5f97\u5230\u79d8\u5bc6,\u90a3\u5c31\u6784\u9020\u4e00\u4e2a\u6709\\(t\\)\u4e2a\u672a\u77e5\u6570\u7684\u591a\u9879\u5f0f, \u7136\u540e\u7ed9\u6bcf\u4e2a\u4eba\u4e00\u4e2a\u591a\u9879\u5f0f\u4e0a\u7684\u70b9,\u8fd9\u6837\u63d0\u4f9b\u4fe1\u606f\u7684\u4eba\u6570\u5927\u4e8et\u7684\u65f6\u5019,\u5c31\u53ef\u4ee5\u6c42\u89e3\u51fa\u591a\u9879\u5f0f,\u4ece\u800c\u5f97\u5230\u79d8\u5bc6.
\\(K\\)\u662f\u79d8\u5bc6,\\(t\\)\u662f\u95e8\u9650,\\(n\\)\u662f\u4eba\u6570,\u90a3\u4e48\u9009\u53d6 \\(t-1\\)\u4e2a\u6570\\(a_1,a_2,\\cdots,a_{t-1}\\),\u6784\u9020\u591a\u9879\u5f0f
\\[f(x)=K+a_1x+a_2x^2+\\cdots+a_{t-1}x^{t-1}\\] \u4fe1\u606f\u9009\u53d6\u4e3a\\((x_i,f(x_i))\\mod p\\),\u5176\u4e2d\\(p\\)\u662f\u7d20\u6570,\\(x_i\\)\u662f\u968f\u673a\u6570
(\u6216\u8005\u522b\u7684\u4e5f\u884c,1,2,3,\u9009\u62e9\u968f\u673a\u6570\u4e3b\u8981\u662f\u4e3a\u4e86\u8ba9\u89c4\u5f8b\u4e0d\u90a3\u4e48\u660e\u663e,\u53d6\u6a21\u611f\u89c9\u662f\u4e3a\u4e86\u8ba9\u6570\u5b57\u5c0f\u4e00\u70b9,\u4e0d\u53d6\u4e5f\u662f\u53ef\u4ee5\u7684)\n
\u8fd9\u6837\u628a\\(n\\)\u4e2a\u4e0d\u540c\u7684\u4fe1\u606f\u7ed9\u5230\\(n\\)\u4e2a\u4eba,\u7136\u540e\\(t\\)\u4e2a\u4eba\u63d0\u4f9b\u4fe1\u606f\u7684\u65f6\u5019,\u5c31\u53ef\u4ee5\u6c42\u89e3\u51fa\u591a\u9879\u5f0f,\u4ece\u800c\u5f97\u5230\u79d8\u5bc6.
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#_2","title":"\u4e2d\u56fd\u5269\u4f59\u5b9a\u7406","text":"\u7ed9\u4e00\u4e9b\u5b9a\u4e49:
\u6574\u9664: \\(a|b\\)\u8868\u793a\\(a\\)\u6574\u9664\\(b\\),\u5373\\(\\exists k\\in Z,s.t.\\;b=ak\\)
\u6700\u5927\u516c\u7ea6\u6570: \\(\\gcd(a,b)\\)\u8868\u793a\\(a\\)\u548c\\(b\\)\u7684\u6700\u5927\u516c\u7ea6\u6570
\u540c\u4f59: \\(a\\equiv b \\mod p\\)\u8868\u793a\\(a\\)\u548c\\(b\\)\u9664\u4ee5\\(p\\)\u7684\u4f59\u6570\u76f8\u7b49
\u9006\u5143: \u82e5\\(\\exists b\\in Z,s.t.\\;a\\cdot b\\equiv 1 \\mod p\\),\u79f0\\(a\\)\u6a21\\(p\\)\u53ef\u9006,\u5e76\u79f0\\(b\\)\u662f\\(a\\)\u6a21\\(p\\)\u7684\u9006\u5143,\u8bb0\u4e3a\\(a^{-1}\\)
\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b:\\(ax\\equiv b \\mod p\\)\u79f0\u4e3a\u6a21p\u7684\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b
\u65b9\u7a0b\u6709\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f:\\(\\gcd(a,p)|b\\) \u5f53\\(\\gcd(a,p)=1\\),\u65b9\u7a0b\u7684\u89e3\u662f\\(a^{-1}b\\),\u4e14\u5c0f\u4e8e\\(p\\)\u7684\u975e\u8d1f\u6574\u6570\u89e3\u662f\u552f\u4e00\u7684 \u4e2d\u56fd\u5269\u4f59\u5b9a\u7406
\u4e00\u6b21\u540c\u4f59\u65b9\u7a0b\u7ec4 \\(x\\equiv a_j\\mod p_j,1\\leq j\\leq k\\)\u5c0f\u4e8e\\(p\\)\u7684\u89e3\u662f\u552f\u4e00\u7684: \\[ x = N_1N_1^{-1}a_1+\\cdots+N_kN_k^{-1}a_k \\] \u5176\u4e2d \\(p = p_1p_2\\cdots p_k,N_j = \\frac{p}{p_j},N_j^{-1}\\)\u662f\\(N_j\\)\u6a21\\(p_j\\)\u7684\u9006
\\(\\forall l\\in Z,x+lp\\)\u4e5f\u662f\u65b9\u7a0b\u7684\u89e3
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/05-%E7%A7%98%E5%AF%86%E5%85%B1%E4%BA%AB/#asmuth-bloom","title":"Asmuth-Bloom\u95e8\u9650\u673a\u5236","text":"\u53c2\u8003\u8fd9\u4e2a\u8bba\u6587
\u592a\u590d\u6742\u4e86,\u5bf9\u7740\u770b\u5427
RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/","title":"\u5b89\u5168\u89c2\u6f14","text":" \u5e7f\u573a\u67d0\u5904\u6b63\u5728\u8fdb\u884c\u4e00\u573a\u9732\u5929\u8868\u6f14\uff0c\u82e5\u5e72\u4eba\u5148\u540e\u5230\u8fbe\u9644\u8fd1 \u5e76\u9009\u62e9\u4e00\u4e2a\u5730\u70b9\u89c2\u770b\u8868\u6f14
\u89c2\u4f17\u9009\u62e9\u5730\u70b9\u7684\u8981\u6c42
\u4e0e\u821e\u53f0\u4e2d\u5fc3\u7684\u8ddd\u79bb\u4e0d\u5c0f\u4e8eL \u4e0e\u4e4b\u524d\u5230\u8fbe\u7684\u4efb\u4e00\u89c2\u4f17\u7684\u8ddd\u79bb\u4e0d\u5c0f\u4e8eY \u5728\u6ee1\u8db3\u4e0a\u8ff0\u8981\u6c42\u7684\u60c5\u51b5\u4e0b\uff0c\u89c2\u4f17\u9009\u62e9\u4e0e\u821e\u53f0\u4e2d\u5fc3\u8ddd\u79bb\u6700\u8fd1\u7684\u67d0\u4e2a\u70b9
\u6c42\u7b2cn\u4e2a\u5230\u8fbe\u7684\u89c2\u4f17\u4e0e\u821e\u53f0\u4e2d\u5fc3\u7684\u8ddd\u79bb\\(d_n\\)\u7684\u4f30\u8ba1
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/#_2","title":"\u4e0a\u754c\u4f30\u8ba1","text":"\u7b2c n \u4e2a\u4eba\u65e0\u6cd5\u9009\u5230\u5c0f\u4e8e\\(d_n\\)\u7684\u8ddd\u79bb:
\u4ee5 O \u4e3a\u5706\u5fc3,\u534a\u5f84\u4e3a\\(d_n\\)\u7684\u5706\u7684\u6240\u6709\u70b9\u5728\\(C,C_1\\cdots,c_{n-1}\\)\u5185
\\(\\pi d_n^2\\leq (n-1)\\pi r^2+\\pi L^2\\Rightarrow d_n\\leq\\sqrt{(n-1)r^2+L^2}\\)
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/06-%E5%AE%89%E5%85%A8%E8%A7%82%E6%BC%94/#_3","title":"\u4e0b\u754c\u4f30\u8ba1","text":" \u8bb0\u4ee5 \\(P_i\\) \u4e3a\u5706\u5fc3, \\(\\frac{r}{2}\\) \u4e3a\u534a\u5f84\u7684\u5706\u8bb0\u4e3a \\(Q_i\\) \u5706 \\(Q_1, Q_2, \\cdots, Q_n\\) \u4e24\u4e24\u4e92\u4e0d\u76f8\u4ea4 \u5706 \\(Q_1, Q_2, \\cdots, Q_n\\) \u5747\u5728\u4ee5 \\(O\\) \u4e3a\u5706\u5fc3\uff0c\u534a\u5f84\u4e3a \\(d_n+\\frac{r}{2}\\)\u7684\u5706\u5185 \\(\\(\\begin{aligned} & \\pi\\left(d_n+\\frac{r}{2}\\right)^2 \\geq n \\cdot \\pi\\left(\\frac{r}{2}\\right)^2 \\Rightarrow d_n \\geq\\left(\\frac{\\sqrt{n}}{2}-\\frac{1}{2}\\right) r \\\\ & L=10, r=1, n=1000 \\quad 15.31 \\leq d_n \\leq 33.15 \\end{aligned}\\)\\) RESOURCES
"},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/08-%E6%8B%9B%E8%81%98%E9%97%AE%E9%A2%98/","title":"\u62db\u8058\u95ee\u9898","text":"n\u4e2a\u6c42\u804c\u8005\u5e94\u8058.\u6309\u7167\u987a\u5e8f\u4f9d\u6b21\u9762\u8bd5,\u6bcf\u4e2a\u4eba\u9762\u8bd5\u7ed3\u675f\u540e\u9762\u8bd5\u5b98\u5fc5\u987b\u7acb\u9a6c\u51b3\u5b9a\u662f\u5426\u5f55\u7528\n\u4e00\u65e6\u5f55\u53d6\u4e00\u4e2a\u6c42\u804c\u8005,\u9762\u8bd5\u7acb\u9a6c\u7ed3\u675f\n\u73b0\u6c42\u4e00\u4e2a\u6700\u597d\u7684\u7b56\u7565.\u4f7f\u5f97\u5f55\u53d6\u6700\u597d\u7684\u6c42\u804c\u8005\u7684\u6982\u7387\u6700\u5927\n
\u6bd5\u5bfc\u79d1\u666e \u767e\u5ea6\u767e\u79d1
\u6570\u5b66\u63cf\u8ff0
\u53e4\u5178\u6982\u578b
\\(p_n(s):\\)\u91c7\u7528\u7b56\u7565\\(s\\)\u5f55\u7528\u5230\u7b2c\u4e00\u540d\u7684\u6982\u5ff5
\\(p_n(1)=p(A_1=1)=\\frac{1}{n}\\) \\(p_n^k(s):\\)\u91c7\u7528\u7b56\u7565\\(s\\)\u5f55\u7528\\(A_k\\),\u4e14\\(A_k\\)\u4e3a\u7b2c\u4e00\u540d\u7684\u6982\u7387
\u6700\u4f18\u7b56\u7565:\u4f7f\u5f97\\(p_n(s)=\\sum\\limits_{k=s}^np_n^k(s)=\\frac{s-1}{n}\\sum\\limits_{k=s-1}^{n-1}\\frac{1}{k}\\)\u5c3d\u53ef\u80fd\u5927
\\(s^*=\\min\\{s|\\sum\\limits_{k=s}^{n-1}\\frac{1}{k}<1\\}\\)
\\(s^*\\)\u7684\u4f30\u8ba1\u548c\u6e10\u8fdb\u6027\u8d28
\\(p_n\\left(s^*\\right)\\) \u7684\u503c\u4e0e\u6e10\u8fd1\u6027\u8d28
\\(p_n\\left(s^*\\right)=\\frac{s^*-1}{n} \\sum_{k=s^*-1}^{n-1} \\frac{1}{k}\\) \\(\\ln \\frac{n}{s^*-1}=\\int_{s^*-1}^n \\frac{1}{x} d x \\leq \\sum_{k=s^*-1}^{n-1} \\frac{1}{k} \\leq \\int_{s^*-\\frac{1}{2}}^{n-\\frac{1}{2}} \\frac{1}{x} d x=\\ln \\frac{2 n-1}{2 s^*-1}\\) \\(\\lim\\limits_{n \\rightarrow \\infty} p_n\\left(s^*\\right)=\\frac{1}{e}\\) "},{"location":"Notebook/%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1/08-%E6%8B%9B%E8%81%98%E9%97%AE%E9%A2%98/#-","title":"-","text":""},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/","title":"\u738b\u9053\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5","text":""},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/","title":"\u7ebf\u6027\u8868","text":"def\uff1a\u7ebf\u6027\u8868\u662f\u5177\u6709\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684n\u4e2a\u6570\u636e\u5143\u7d20\u7684\u6709\u9650\u5e8f\u5217\uff0cn\u4e3a\u8868\u957f\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_2","title":"\u7ebf\u6027\u8868\u7684\u987a\u5e8f\u5b58\u50a8\u53c8\u53eb\u987a\u5e8f\u8868","text":"i def\uff1a\u7528\u4e00\u7ec4\u5730\u5740\u8fde\u7eed\u7684\u5b58\u50a8\u5355\u5143\u4f9d\u6b21\u5b58\u50a8\u7ebf\u6027\u8868\u4e2d\u7684\u6570\u636e\u5143\u7d20
note:\u987a\u5e8f\u8868\u7684\u5143\u7d20\u5728\u903b\u8f91\u548c\u7269\u7406\u4e0a\u90fd\u662f\u76f8\u90bb\u7684(\u903b\u8f91\u987a\u5e8f\u548c\u5b58\u50a8\u7684\u7269\u7406\u987a\u5e8f\u76f8\u540c)
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_3","title":"\u4f18\u70b9","text":"1.\u53ef\u8fdb\u884c\u968f\u673a\u8bbf\u95ee\uff0c\u53ef\u4ee5\u5728O(1)\u7684\u65f6\u95f4\u4e2d\u627e\u5230\u5143\u7d20\n2.\u5b58\u50a8\u5bc6\u5ea6\u9ad8,\u6bcf\u4e2a\u7ed3\u70b9\u53ea\u5b58\u50a8\u6570\u636e\u5143\u7d20(\u611f\u89c9\u662f\u4e0e\u94fe\u8868\u8fdb\u884c\u6bd4\u5bf9,\u94fe\u8868\u8fd8\u9700\u8981\u6307\u9488\u57df)\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_4","title":"\u7f3a\u70b9","text":"1.\u5143\u7d20\u7684\u63d2\u5165\u548c\u5220\u9664\u9700\u8981\u79fb\u52a8\u5927\u91cf\u7684\u5143\u7d20,\u5e73\u5747O(n/2) 2.\u9700\u8981\u4e00\u6bb5\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4,\u4e0d\u591f\u7075\u6d3b
note:\u987a\u5e8f\u8868\u4e00\u5b9a\u8981\u8fde\u7eed\u5b58\u50a8,\u4f46\u662f\u6570\u7ec4\u4e0d\u4e00\u5b9a
\u53ef\u4ee5\u53d1\u73b0,\u6570\u7ec4\u5143\u7d20\u90fd\u88ab\u521d\u59cb\u5316\u4e3a 1,\u4f46\u662f\u5982\u679c index1-index2 \u4e24\u4e2a\u5730\u65b9\u7684\u5143\u7d20\u88ab\u4fee\u6539,\u90a3\u4e48\u4e2d\u95f4\u7684\u5143\u7d20\u4e5f\u4f1a\u88ab\u968f\u673a\u6539\u53d8
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_5","title":"\u94fe\u8868:\u7ebf\u6027\u8868\u7684\u94fe\u5f0f\u8868\u793a","text":"\u5355\u94fe\u8868
//single node\nstruct Node{\n Comparable value;\n Node* next;\n}\n
\u53cc\u94fe\u8868 // double node\nstruct Node{\n Comparable value;\n Node* prior,* next;\n}\n
"},{"location":"Notebook/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E7%AE%97%E6%B3%95/%E8%A1%A8/#_6","title":"\u987a\u5e8f\u8868\u548c\u94fe\u8868\u7684\u6bd4\u8f83:","text":"1.\u5b58\u53d6(\u8bfb\u5199\u65b9\u6cd5):\n \u987a\u5e8f\u8868\u53ef\u4ee5\u987a\u5e8f\u5b58\u53d6\u4e5f\u53ef\u4ee5\u968f\u673a\u5b58\u53d6,\u94fe\u8868\u53ea\u80fd\u987a\u5e8f\u5b58\u53d6\n 2.\u903b\u8f91\u7ed3\u6784\u548c\u7269\u7406\u7ed3\u6784\n \u987a\u5e8f\u8868\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7269\u7406\u7ed3\u6784\u662f\u7edf\u4e00\u7684,\u94fe\u8868\u5219\u4e0d\u662f,\u903b\u8f91\u76f8\u90bb\u7684\u5143\u7d20\u7269\u7406\u4e0a\u4e0d\u4e00\u5b9a\u76f8\u90bb\n 3.\u67e5\u627e,\u63d2\u5165\u548c\u5220\u9664\n \u6309\u503c\u67e5\u627e:\u5982\u679c\u5143\u7d20\u65e0\u5e8f\u4e24\u8005\u90fd\u662fO(n),\u6709\u5e8f\u987a\u5e8f\u8868\u53ef\u5230 O(logn)\n \u6309\u5e8f\u67e5\u627e:\u987a\u5e8f\u8868O(1),\u94fe\u8868O(n)\n \u63d2\u5165\u5220\u9664:\u987a\u5e8f\u8868\u9700\u8981\u79fb\u52a8\u5e73\u5747 \u4e00\u822c\u5143\u7d20,\u94fe\u8868\u53ea\u9700\u66f4\u6539\u6307\u9488\n 4.\u94fe\u8868\u66f4\u4e3a\u7075\u6d3b,\u4f46\u662f\u5b58\u50a8\u5bc6\u5ea6\u66f4\u4f4e(\u8fd8\u9700\u8981\u5b58\u50a8\u6307\u9488)\n
"},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/","title":"\u673a\u5668\u5b66\u4e60","text":" \u5434\u6069\u8fbe\u673a\u5668\u5b66\u4e60
\u9ec4\u6d77\u5e7f\u4e2d\u6587\u7b14\u8bb0github
blibli \u89c6\u9891\u5730\u5740
"},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/","title":"\u5f15\u8a00(introduction)","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#_1","title":"\u4ec0\u4e48\u662f\u673a\u5668\u5b66\u4e60","text":" \u5728\u8fdb\u884c\u7279\u5b9a\u7f16\u7a0b\u7684\u60c5\u51b5\u4e0b\uff0c\u7ed9\u4e88\u8ba1\u7b97\u673a\u5b66\u4e60\u80fd\u529b\u7684\u9886\u57df "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#_2","title":"\u7b97\u6cd5\u7c7b\u578b","text":" \u76d1\u7763\u5b66\u4e60 \u76d1\u7763\u5b66\u4e60\u6307\u7684\u5c31\u662f\u6211\u4eec\u7ed9\u5b66\u4e60\u7b97\u6cd5\u4e00\u4e2a\u6570\u636e\u96c6\u3002\u8fd9\u4e2a\u6570\u636e\u96c6\u7531\u201c\u6b63\u786e\u7b54\u6848\u201d\u7ec4\u6210\u3002 \u65e0\u76d1\u7763\u5b66\u4e60 \u53ea\u63d0\u4f9b\u6570\u636e\u96c6,\u4f46\u662f\u6570\u636e\u96c6\u6ca1\u6709\u6807\u7b7e \u6bd4\u5982\u901a\u8fc7\u524d\u51e0\u5e74\u7684\u623f\u4ef7\u53bb\u9884\u6d4b\u660e\u5e74\u7684\u623f\u4ef7,\u6211\u4eec\u5e76\u4e0d\u77e5\u9053\u660e\u5e74\u623f\u4ef7\u5230\u5e95\u662f\u591a\u5c11 \u805a\u96c6\u7b97\u6cd5:\u628a\u6570\u636e\u96c6\u5224\u5b9a\u4e3a\u591a\u4e2a\u6570\u636e\u65cf\u7684\u5e76 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/01-%E5%BC%95%E8%A8%80/#note","title":"note","text":" \u56de\u5f52\u95ee\u9898:\u63a8\u6d4b\u8fde\u7eed\u7a7a\u95f4\u4e2d\u7684\u7ed3\u679c \u6bd4\u5982\u56de\u5f52\u5206\u6790 \u5206\u7c7b\u95ee\u9898:\u63a8\u6d4b\u79bb\u6563\u7a7a\u95f4\u4e2d\u7684\u7ed3\u679c \u6bd4\u5982\u80cc\u5305\u95ee\u9898 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/","title":"\u5355\u53d8\u91cf\u7ebf\u6027\u56de\u5f52","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_2","title":"\u6a21\u578b\u8868\u793a","text":" \\(m\\)\u8868\u793a\u8bad\u7ec3\u96c6\u7684\u5927\u5c0f \\(x\\)\u8868\u793a\u7279\u5f81/\u8f93\u5165\u53d8\u91cf \\(y\\)\u8868\u793a\u76ee\u6807\u53d8\u91cf/\u8f93\u51fa\u53d8\u91cf \\((x,y)\\)\u8868\u793a\u8bad\u7ec3\u96c6\u7684\u4e00\u4e2a\u5b9e\u4f8b \\((x^{(i)},y^{(i)})\\)\u8868\u793a\u7b2c\\(i\\)\u4e2a\u89c2\u5bdf\u5b9e\u4f8b \\(h\\)\u4ee3\u8868\u7b97\u6cd5\u7684\u89e3\u51b3\u65b9\u6848\u6216\u8005\u8bf4\u662f\u8bad\u7ec3\u7ed3\u679c \u8003\u8651\\(h(x)=\\theta_0+\\theta_1x\\) \u53ea\u6709\u4e00\u4e2a\u8f93\u5165\u53d8\u91cf,\u56e0\u6b64\u8fd9\u662f\u4e00\u4e2a\u5355\u53d8\u91cf\u7ebf\u6027\u56de\u5f52 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_3","title":"\u4ee3\u4ef7\u51fd\u6570","text":" \u5efa\u6a21\u8bef\u5dee: \\(h(x^{(i)})-y^{(i)}\\) \\(J(\\theta_0,\\theta_1)=\\frac{1}{2m}\\sum\\limits_{i=1}^{m}(h(x^{(i)})-y^{(i)})^2\\) \u4ee3\u4ef7\u51fd\u6570\u7684\u76ee\u6807\u662f\u4f7f\u5f97\\(J(\\theta_0,\\theta_1)\\)\u6700\u5c0f \u4ee3\u4ef7\u51fd\u6570\u4e5f\u88ab\u79f0\u4f5c\u5e73\u65b9\u8bef\u5dee\u51fd\u6570,\u6216\u8005\u5e73\u65b9\u4ee3\u4ef7\u8bef\u5dee\u51fd\u6570 \u4ee3\u4ef7\u51fd\u6570\u662f\u4e00\u4e2a\u51f8\u51fd\u6570,\u56e0\u6b64\u53ea\u6709\u4e00\u4e2a\u6700\u5c0f\u503c "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_4","title":"\u68af\u5ea6\u4e0b\u964d","text":" \u68af\u5ea6\u4e0b\u964d\u662f\u4e00\u4e2a\u6c42\u51fd\u6570\u6700\u5c0f\u503c\u7684\u529e\u6cd5 \u5f53\u7136\u4e5f\u53ef\u4ee5\u6c42\u6700\u5927\u503c,\u53ea\u8981\u4ee4\\(g=-f\\) \u601d\u60f3:\u5c31\u662f\u51fd\u6570\u6cbf\u7740\u68af\u5ea6\u7684\u53cd\u65b9\u5411\u8d70\u662f\u4e0b\u964d\u6700\u5feb\u7684,\u5728\u6570\u5b66\u5206\u6790\u4e2d\u6211\u4eec\u5b9a\u4e49\\(grad(f)=\\nabla f=\\frac{\\partial f}{\\partial x_1}\\hat{i}+\\frac{\\partial f}{\\partial x_2}\\hat{j}+\\frac{\\partial f}{\\partial x_3}\\hat{k}\\) \u53ef\u80fd\u9677\u5165\u5c40\u90e8\u6700\u4f18 \u6279\u91cf\u68af\u5ea6\u4e0b\u964d\u7b97\u6cd5(batch gradint descent) \\(\\theta_j:=\\theta_j-\\alpha\\frac{\\partial}{\\partial\\theta_j}J(\\theta_0,\\theta_1)\\),\u5176\u4e2d\\(\\alpha\\)\u662f\u5b66\u4e60\u7387,\u63a7\u5236\u68af\u5ea6\u4e0b\u964d\u7684\u901f\u5ea6. \u8fd9\u91cc\u53ef\u4ee5\u7528 Euler \u6298\u7ebf\u7684\u601d\u60f3\u7406\u89e3,\u5b9e\u9645\u4e0a\u5c31\u662f\u5f80\u5bfc\u6570\u65b9\u5411\u8d70\u4e86\u4e00\u6b65,\u6b65\u957f\u7531\\(\\alpha\\)\u51b3\u5b9a \u6240\u6709\u7684\u53c2\u6570\u9700\u8981\u540c\u6b65\u66f4\u65b0 "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/02-%E5%8D%95%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_5","title":"\u68af\u5ea6\u4e0b\u964d\u7684\u7ebf\u6027\u56de\u5f52","text":" \\(\\theta_0:=\\theta_0-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^{m}(h(x^{(i)})-y^{(i)})\\) \\(\\theta_1:=\\theta_1-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^{m}((h(x^{(i)})-y^{(i)})x^{(i)})\\) "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/03-%E7%BA%BF%E6%80%A7%E4%BB%A3%E6%95%B0%E5%9B%9E%E9%A1%BE/","title":"\u7ebf\u6027\u4ee3\u6570\u56de\u987e","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/","title":"\u591a\u53d8\u91cf\u7ebf\u6027\u56de\u5f52","text":""},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_2","title":"\u591a\u7ef4\u7279\u5f81","text":" \\(X=(x_1,x_2,...,x_n)\\) \\(n\\) \u4ee3\u8868\u7279\u5f81\u7684\u6570\u76ee \\(x^{(i)}\\) \u4ee3\u8868\u7b2c \\(i\\) \u4e2a\u8bad\u7ec3\u6837\u672c,\u4e5f\u5c31\u662f\u7279\u5f81\u77e9\u9635\u7684\u7b2c \\(i\\) \u884c \\(x_j^{(i)}\\) \u4ee3\u8868\u7b2c \\(i\\) \u4e2a\u8bad\u7ec3\u6837\u672c\u7684\u7b2c \\(j\\) \u4e2a\u7279\u5f81\u503c \u5047\u8bbe\\(h_\\theta(x)=\\theta_0+\\theta_1x_1+\\theta_2x_2+...+\\theta_nx_n\\),\u5f15\u5165\\(x_0=1\\):\u5219\\(h\\)\u53ef\u4ee5\u8868\u793a\u4e3a\\(h_\\theta(x)=\\theta^TX\\) "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_3","title":"\u591a\u53d8\u91cf\u68af\u5ea6\u4e0b\u964d","text":" \u4ee3\u4ef7\u51fd\u6570\\(J(\\theta_0,\\theta_1,\\cdots,\\theta_n)=\\frac{1}{2m}\\sum\\limits_{i=1}^{m}(h_\\theta(x^{(i)})-y^{(i)})^2\\) \u5176\u4e2d\\(h_\\theta= \\theta^TX=\\theta_0x_0+\\theta_1x_1+\\cdots+\\theta_nx_n\\) \u7b97\u6cd5:\\(\\theta_j =\\theta_j-\\alpha\\frac{\\partial}{\\partial \\theta_j}J(\\Theta)\\) \u5373:\\(\\theta_j = \\theta_j-\\alpha\\frac{\\partial}{\\partial\\theta_j}\\frac{1}{2m}\\sum\\limits_{i=1}^m(h_\\theta(x^{(i)})-y^{(i)})^2=\\theta_j-\\alpha\\frac{1}{m}\\sum\\limits_{i=1}^m(h_\\theta(x^{(i)})-y^{(i)})x_j^{(i)}\\) "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_4","title":"\u7279\u5f81\u7f29\u653e","text":" \u5728\u9762\u5bf9\u591a\u7ef4\u7684\u95ee\u9898\u7684\u65f6\u5019,\u4e3a\u4e86\u4fdd\u8bc1\u5404\u4e2a\u7279\u5f81\u7684\u6e38\u52a8\u6743\u91cd\u76f8\u540c,\u9700\u8981\u5bf9\u7279\u5f81\u8fdb\u884c\u7f29\u653e \u4e00\u822c\u7684\u53ef\u4ee5\u53d6\\(x_j = \\frac{x_j-\\mu_j}{s_j}\\),\u5176\u4e2d\\(\\mu_j\\)\u662f\u5e73\u5747\u503c,\\(s_j\\)\u662f\u6807\u51c6\u5dee "},{"location":"Notebook/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/04-%E5%A4%9A%E5%8F%98%E9%87%8F%E7%BA%BF%E6%80%A7%E5%9B%9E%E5%BD%92/#_5","title":"\u5b66\u4e60\u7387","text":" \u5b66\u4e60\u7387\u592a\u5927\u53ef\u80fd\u4f1a\u65e0\u6cd5\u6536\u655b,\u5b66\u4e60\u7387\u592a\u5c0f\u4f1a\u5bfc\u81f4\u6536\u655b\u901f\u5ea6\u8fc7\u6162
\u753b\u51fa\\(J(\\theta)\\)\u968f\u7740\u8fed\u4ee3\u6b21\u6570\u7684\u53d8\u5316,\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u9009\u62e9\u5408\u9002\u7684\u5b66\u4e60\u7387
"},{"location":"Notebook/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BB%84%E6%88%90%E5%8E%9F%E7%90%86/","title":"\u738b\u9053\u8ba1\u7b97\u673a\u7ec4\u6210","text":""},{"location":"Notebook/%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BB%84%E6%88%90%E5%8E%9F%E7%90%86/1-%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%B3%BB%E7%BB%9F%E6%A6%82%E8%BF%B0/","title":"\u8ba1\u7b97\u673a\u7cfb\u7edf\u6982\u8ff0","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/","title":"\u968f\u673a\u8fc7\u7a0b","text":"\u82cf\u4e2d\u6839
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/01-%E5%88%9D%E7%AD%89%E6%A6%82%E7%8E%87%E8%AE%BA/","title":"\u521d\u7b49\u6982\u7387\u8bba","text":"Bernoulli\u5206\u5e03,Poisson\u5206\u5e03,\u6b63\u6001\u5206\u5e03\u53ef\u52a0\u6027
1.\\(X\\sim B(n,p),Y\\sim V(m,p)\\Rightarrow X+Y\\sim B(m+n,p)\\)
2.\\(X\\sim P(\\lambda),Y\\sim P(\\mu)\\Rightarrow X+Y\\sim P(\\lambda+\\mu)\\)
3.\\(X\\sim N(\\mu_1,\\sigma_1^2),Y\\sim N(\\mu_2,\\sigma_2^2)\\Rightarrow X+Y\\sim N(\\mu_1+\\mu_2,\\sigma_1^2+\\sigma_2^2)\\)
\u5047\u8bbe\\((X,Y)\\sim N(\\mu_1,\\mu_2,\\sigma_1^2,\\sigma_2^2,\\rho)\\)
1.\\(X\\sim N(\\mu_1,\\sigma_1^2),Y\\sim N(\\mu_2,\\sigma_2^2)\\)
2.\u7ed9\u5b9a\\(X=x\\),\u5219\\(Y\\sim N(\\mu_2+\\rho\\frac{\\sigma_2}{\\sigma_1}(x-\\mu_1),\\sigma_2^2(1-\\rho^2))\\)
3.X,Y\u72ec\u7acb\\(\\Leftrightarrow \\rho=0\\)
4.\u7ed9\u5b9a\\(a,b\\in R,aX+bY\\sim N(\\mu,\\sigma^2)\\)
\\(\\Rightarrow \\mu = a\\mu_1+b\\mu_2,\\sigma^2=a^2\\sigma_1^2+b^2\\sigma_2^2+2ab\\rho\\sigma_1\\sigma_2\\)
k\u9636\u77e9
\\(EX^k<\\infty\\Rightarrow EX^k\\)\u7684\\(X\\)\u7684\\(k\\)\u9636\u77e9
\\(X\\sim P(\\lambda)\\) \\(\\Rightarrow\\) \\(EX=\\lambda,EX^2=\\lambda+\\lambda^2\\)
\\(EX(X-1)\\cdots(X-k+1)=\\lambda^k\\)
\u7531\u6b64\u53ef\u4ee5\u6c42\u51fa\\(P(\\lambda)\\)\u7684\u5404\u9636\u77e9
\\(X\\sim N(0,\\sigma^2)\\) \\(\\Rightarrow\\) \\(m_{2k}=(zk-1)!!\\sigma^{2k},m_{2k-1}=0\\)
\u77e9\u6bcd\u51fd\u6570 \\(iG_X(t)=Ee^{tX},|t|<|t_0|:Ee^{tX}<\\infty,|t|<t_0\\)
\\(X\\sim P(\\lambda)\\) \\(\\Rightarrow\\) \\(G_X(t)=e^{\\lambda(e^t-1)}\\)
\\(X\\sim N(0,\\sigma^2)\\) \\(\\Rightarrow\\) \\(G_X(t)=e^{\\frac{1}{2}\\sigma^2t^2}\\)
Chebyshev\u4e0d\u7b49\u5f0f
\\(P(|X-\\mu|\\geq \\varepsilon)\\leq \\frac{\\sigma^2}{\\varepsilon^2}\\)
\u63a8\u5e7f\u4e3a:\\(f:R\\to R^+\\)\u4e3a\u975e\u8d1f\u5355\u8c03\u4e0d\u51cf\u51fd\u6570,\\(Ef(X)<\\infty\\),\u90a3\u4e48\\(P(X>\\epsilon)\\leq \\frac{Ef(X)}{f(\\epsilon)}\\))
\u534f\u65b9\u5dee\u548c\u76f8\u5173\u7cfb\u6570
\\(Cov(X,Y)=E(X-\\mu_X)(Y-\\mu_Y)\\)
\\(\\rho(X,Y)=\\frac{Cov(X,Y)}{\\sigma_X\\sigma_Y}\\)=\\(\\frac{Cov(X,Y)}{\\sqrt{Var(X)Var(Y)}}\\)
\\((X,Y)\\)\u7684\u6570\u5b57\u7279\u5f81\u5305\u62ec\u5747\u503c\u5411\u91cf\u548c\u534f\u65b9\u5dee\u77e9\u9635
\\(\\mu=(EX,EY)\\),\\(\\Sigma=\\begin{pmatrix}Var(X)&Cov(X,Y)\\\\Cov(Y,X)&Var(Y)\\end{pmatrix}\\)
\u7279\u5f81\u51fd\u6570
\\(\\phi_X(t)=Ee^{itX}\\)=\\(\\int_{-\\infty}^{\\infty}e^{itx}dF_X(x),t\\in R\\)
\u5bc6\u5ea6\u51fd\u6570\\(f_X(x)=\\frac{1}{2\\pi}\\int_{-\\infty}^{\\infty}e^{-itx}\\phi_X(t)dt\\)
\u5404\u79cd\u6536\u655b
\u6781\u9650\u5b9a\u7406 1
\\(\\{\\xi_n\\}\\)\u72ec\u7acb\u540c\u5206\u5e03,\\(P(\\xi_n=1)=p,P(\\xi_n=0)=1-p\\),\u4ee4\\(S_n=\\sum\\limits_{i=1}^n\\xi_i\\)\u90a3\u4e48:
1.\\((Bernoulli):\\frac{S_n}{n}\\overset{p}\\to p\\)
2.\\((De Moivre-Laplace):\\frac{S_n-np}{\\sqrt{np(1-p)}}\\overset{d}\\to N(0,1)\\)
3.\\((Borel):\\frac{S_n}{n}\\to p,s.e.\\)
Poisson\u6781\u9650\u5b9a\u7406
\\(\\forall n,\\{\\xi_{n,k}\\}_{k=1}^n\\)\u72ec\u7acb\u540c\u5206\u5e03,\\(P(\\xi_{n,k}=1)=p_n,P(\\xi_{n,k}=0)=1-p_n,1\\leq k\\leq n\\), \u82e5:\\(n\\to\\infty\\)\u65f6,\\(p_n\\to\\infty,np_n\\to\\lambda\\in R^+\\),\u4ee4\\(S_n=\\sum\\limits_{k=1}^n\\xi_{n,k}\\),\u90a3\u4e48:
\\[S_n\\overset{d}\\to \\mathcal{P}(\\lambda)\\] \\(\\{\\xi_n\\}\\)\u72ec\u7acb\u540c\u5206\u5e03,\u4ee4\\(S_n=\\sum\\limits_{i=1}^n\\xi_i\\)\u90a3\u4e48:
1.\\((Khintchine):\\frac{S_n}{n}\\overset{p}\\to \\mu,a.e.\\) \\(\\iff\\) \\(E|\\xi_1|<\\infty,E\\xi=\\mu\\)
2.\\((Feller-Levy):\\frac{S_n}{\\sqrt{n\\sigma^2}}\\overset{d}\\to N(0,1)\\) \\(\\iff\\) \\(E\\xi_n=0,Var\\xi_n=E\\xi_n^2=\\sigma^2\\)
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/","title":"\u968f\u673a\u8fc7\u7a0b\u7684\u57fa\u672c\u6982\u5ff5","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_2","title":"\u968f\u673a\u8fc7\u7a0b\u7684\u5b9a\u4e49","text":"\u6982\u7387\u7a7a\u95f4\\((\\Omega,\\mathcal{A},P)\\)\u4e0a\u7684\u968f\u673a\u8fc7\u7a0b\u662f\u4e00\u65cf\u968f\u673a\u53d8\u91cf\\(X(\\omega,t):\\Omega\\to\\epsilon,t\\in T\\)\uff0c\u5176\u4e2d\\(T\\)\u79f0\u4e3a\u65f6\u95f4\u53c2\u6570\u7a7a\u95f4,\\(\\epsilon\\) \u79f0\u4e3a\u72b6\u6001\u7a7a\u95f4
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_3","title":"\u5747\u503c\u51fd\u6570","text":"\u82e5\\(\\forall t \\in T,E|X(t)|<\\infty\\)\uff0c\u5219\u79f0\\(\\mu_X(t)=EX(t),t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u7684\u5747\u503c\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_4","title":"\u81ea\u534f\u65b9\u5dee\u51fd\u6570","text":"\u82e5\\(\\forall t\\in T,E|X(t)|<\\infty\\)\uff0c\u5219\u79f0\\(\\sigma_X^2(t)=Var(X(t)),t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u7684\u65b9\u5dee\u51fd\u6570
\\(r_X(s,t)=E(X(t)X(s)),s,t\\in T\\)\u4e3a X \u7684\u81ea\u76f8\u5173\u51fd\u6570
\\(Cov(X(t),X(s))=E(X(t)X(s))-EX(t)EX(s)=r_X(s,t)-\\mu_X(s)\\mu_X(t)\\)\u4e3a\u81ea\u534f\u65b9\u5dee\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_5","title":"\u4e92\u76f8\u5173\u51fd\u6570","text":"\\(r_{X,Y}(s,t)=E(Y(t)X(s)),s,t\\in T\\)\u4e3a\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u548c\\(Y(t)\\)\u7684\u4e92\u76f8\u5173\u51fd\u6570
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_6","title":"\u5bbd\u5e73\u7a33\u8fc7\u7a0b(\u5f31\u5e73\u7a33\u8fc7\u7a0b)","text":"\u82e5\\(\\forall t\\in T,E(X(t))^2<\\infty\\)
\\(\\mu_X(t)=\\mu,\\forall t\\in T\\)
\\(r_X(s,t)=\\tau_X(s-t)\\;,\\forall s,t\\in T\\),\u5176\u4e2d\\(\\tau_X:R\\to R\\)
\u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u5bbd\u5e73\u7a33\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_7","title":"\u4e25\u5e73\u7a33\u8fc7\u7a0b","text":"\u82e5\\(\\forall k\\geq 1,t_1,t_2,\\cdots,t_k\\in T,t\\in T\\)
\\[(X(t_1+t),X(t_2+t),\\cdots,X(t_k+t))\\overset{d}{=}(X(t_1),X(t_2),\\cdots,X(t_k))\\] \u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u4e25\u5e73\u7a33\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/02-%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5/#_8","title":"\u72ec\u7acb\u589e\u91cf\u8fc7\u7a0b","text":"\u82e5\\(\\forall t_1<t_2<\\cdots<t_n\\),\u968f\u673a\u53d8\u91cf\\(X(t_1),X(t_2)-X(t_1),\\cdots,X(t_n)-X(t_{n-1})\\)\u76f8\u4e92\u72ec\u7acb\uff0c\u5219\u79f0\u968f\u673a\u8fc7\u7a0b\\(X(t)\\)\u4e3a\u72ec\u7acb\u589e\u91cf\u8fc7\u7a0b
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/","title":"Poisson \u8fc7\u7a0b","text":" \u7528\\(N(t)\\)\u8868\u793a\u65f6\u95f4(0,t]\u4e2d\u4e8b\u4ef6\u53d1\u751f\u7684\u6b21\u6570,\\(\\lambda\\)\u662f\u5355\u4f4d\u65f6\u95f4\u53d1\u751f\u7684\u4e8b\u4ef6\u6570,\\(S_i\\)\u8868\u793a\u7b2ci\u6b21\u4e8b\u4ef6\u53d1\u751f\u7684\u65f6\u95f4 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_1","title":"Poisson\u5206\u5e03","text":" \\[\\forall t>0,P(N(t)=k)=\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t},k\\in N\\] "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_1","title":"\u7279\u6027","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#1entlambda-t","title":"1.\\(E(N(t))=\\lambda t\\)","text":"\u8bc1\u660e\u5f88\u7b80\u5355\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#2varntlambda-t","title":"2.\\(Var(N(t))=\\lambda t\\)","text":"\u8bc1\u660e\u4e5f\u5f88\u7b80\u5355\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#3","title":"3.\u81ea\u76f8\u5173\u51fd\u6570","text":" \\[r_N(s,t)=E(N(s)N(t))=\\lambda^2st+\\lambda s\\] <\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u5173\u4e8e s,t \u4e0d\u5bf9\u79f0?> "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#4","title":"4.\u81ea\u534f\u65b9\u5dee\u51fd\u6570","text":" \\[Cov(s,t)=E(N(s)N(t))-E(N(s))E(N(t))=\\lambda s\\] <\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u5173\u4e8e s,t \u4e0d\u5bf9\u79f0?>
\u4e8b\u5b9e\u4e0a\u8fd9\u4e5f\u53ef\u4ee5\u770b\u505a\u4e00\u79cd\u5bf9\u79f0,min{s,t} = min{t,s} = s
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_2","title":"Poisson\u6d41","text":" \\(N(t)\\sim \\mathcal{P}(\\lambda t)\\),\u5219\\(N(t)\\)\u662f\u4e00\u4e2aPoisson\u6d41
\u8003\u5bdf\u65f6\u95f4\u53d1\u751f\u7684\u65f6\u95f4\u7684\u5206\u5e03,\u4e5f\u5c31\u662f\\(S_i\\)\u7684\u5206\u5e03
\\(\\forall t>0,S_>t\\iff N(t)=0\\),\u90a3\u4e48 \\(P(S_1>t)=P(N(t)=0)=e^{-\\lambda t}\\),\u4ece\u800c\\(S_1\\sim \\mathcal{E}(\\lambda)\\) \u7b2c\u4e00\u4e2a\u5230\u8fbe\u7684\u65f6\u523b\u670d\u4ece\u53c2\u6570\u4e3a\\(\\lambda\\)\u7684\u6307\u6570\u5206\u5e03
\u5bf9\u4e8e\\(n\\geq 1\\),\\(S_n>t\\iff N(t)\\leq n-1\\),\u90a3\u4e48\\(P(S_n>t)=P(N(t)\\leq n-1)=\\sum\\limits_{k=0}^{n-1}\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t},\\)
\u4ece\u800c\u6709\\(P(S_n\\leq t)=1-\\sum\\limits_{k=0}^{n-1}\\frac{(\\lambda t)^k}{k!}e^{-\\lambda t}\\)
\\(P_{S_n}=\\frac{\\lambda^nt^{n-1}}{(n-1)!}e^{-\\lambda t},t>0\\) (gamma \u5206\u5e03) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_2","title":"\u65f6\u95f4\u95f4\u9694","text":" \u82e5\u5b9a\u4e49\\(X_i=S_i-S_{i-1}\\),\u5219\\(X_i\\)\u662f\u72ec\u7acb\u540c\u5206\u5e03\u7684\u6307\u6570\u5206\u5e03,\u53c2\u6570\u4e3a\\(\\lambda\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_3","title":"Poisson \u53ef\u52a0\u6027(\u6309\u6982\u5ff5\u53ef\u5206)","text":" \\(N_1(t)\\sim \\mathcal{P}(\\lambda t),N_2(t)\\sim \\mathcal{P}(\\mu t)\\),\u4e14\\(N_1(t),N_2(t)\\)\u76f8\u4e92\u72ec\u7acb,\u5219\\(N_1(t)+N_2(t)\\sim \\mathcal{P}((\\lambda+\\mu)t)\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_3","title":"\u5230\u8fbe\u65f6\u523b\u7684\u6761\u4ef6\u5206\u5e03","text":" \u89e3\u51b3\u7684\u95ee\u9898\u662f,\u5df2\u77e5\\(N(t)=n\\),\u6c42\\(S_1,S_2,\\cdots,S_n\\)\u7684\u8054\u5408\u5206\u5e03
1.\\(N(t)=0\\)\u7684\u60c5\u51b5\u662f\u5e73\u51e1\u7684,\\(N(t)=1\\)\u65f6,\\(S_1\\)\u53ef\u4ee5\u5728\\((0,t]\\)\u4e2d\u4efb\u610f\u53d6\u503c,\u6240\u4ee5\\(S_1\\)\u7684\u5206\u5e03\u662f\u5747\u5300\u5206\u5e03
2.\\(N(t)=2\\) \u7684\u60c5\u51b5\u4e0b,\\(S_,S_2\\) \u4e5f\u76f8\u4e92\u72ec\u7acb(\u82e5\u4e0d\u7ea0\u7ed3\u987a\u5e8f,\u4e5f\u5c31\u662f\u4e8b\u4ef6 1,2\u53d1\u751f\u7684\u65f6\u95f4),\u56e0\u6b64\u968f\u673a\u53d6\u503c,\u4f46\u662f(\u4e8b\u5b9e\u4e0a\u6211\u4eec\u8003\u8651\u7684\\(S_1,S_2\\)\u6709\u5148\u540e\u987a\u5e8f,)\\(S_1\\)\u603b\u662f\u4f18\u5148\u4e8e\\(S_2\\)\u5230\u8fbe.\u56e0\u6b64\u4e0d\u59a8\u628a\\(S_1,S_2\\) \u7406\u89e3\u4e3a\u65f6\u95f4\u6bb5\u5185\u4e24\u4e2a\u72ec\u7acb\u540c\u5206\u5e03\u7684\u5747\u5300\u968f\u673a\u53d8\u91cf\u7684\u6700\u5927\u6700\u5c0f\u503c
3.\u66f4\u4e00\u822c\u7684,\u53ef\u4ee5\u8ba4\u4e3a n \u4e2a \\(S_i\\)\u7684\u5206\u5e03\u4e5f\u662f n \u4e2a\u72ec\u7acb\u540c\u5206\u5e03\u7684\u968f\u673a\u53d8\u91cf\u7684\u6b21\u5e8f\u6392\u5217,\u6362\u53e5\u8bdd\u8bf4
\\[(S_1,S_2,\\cdots,S_n|N(t)=n)\\overset{d}{=}(U'_1,U'_2,\\cdots,U'_n)\\] \u5176\u4e2d\\(\\{U'_i\\}_{i=1}^n\\)\u662f n \u4e2a\u5747\u5300\u5206\u5e03\u968f\u673a\u53d8\u91cf\\(\\{U_i\\}_{i=1}^n\\)\u7684\u6b21\u5e8f\u7edf\u8ba1\u91cf \u6709:
\\[P_{S_1,S_2,\\cdots,S_n|N(t)}(x_1,x_2,\\cdots,x_n|n)=\\frac{n!}{t^n},0<x_1<\\cdots<x_n\\] \u5176\u4f59\u60c5\u51b5\u662f\u53d6\u503c\u4e3a 0,\u5982\u679c\u4e0d\u662f\u6b21\u5e8f\u7edf\u8ba1\u91cf\u90a3\u4e48\u663e\u7136\u6ca1\u6709\\(n!\\),\u5728 n \u4e2a \\(x_i\\)\u7684\u968f\u673a\u6392\u5217\u4e2d\u53ea\u6709\u4e00\u79cd\u662f\u7b26\u5408\u6b21\u5e8f\u7684, \u56e0\u6b64\u5bf9\u5e94\u7684\u6837\u672c\u7a7a\u95f4(\u975e0)\u88ab\u7f29\u5c0f\u4e86\u5230\u539f\u6765\u76841/n!,\u76f8\u5e94\u7684\u6982\u5ff5\u5bc6\u5ea6\u4e5f\u5c31\u6269\u5927\u4e86n!\u500d
\u6700\u540e\u6709:
\\[E(\\sum\\limits_{i=1}^nf(S_i)|N(t)=n)=E(\\sum_{i=1}^nf(U_i))=n\\int_0^tf(x)dx\\] "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#_4","title":"\u6b21\u5e8f\u7edf\u8ba1\u91cf","text":" \u8bbe\\(X_1,X_2,\\cdots,X_n\\)\u72ec\u7acb\u540c\u5206\u5e03,\u5206\u5e03\u51fd\u6570\u4e3aF,\u5bc6\u5ea6\u51fd\u6570\u4e3af,\u4e14\\(X_{(1)},X_{(2)},\\cdots,X_{(n)}\\)\u662f\\(X_1,X_2,\\cdots,X_n\\)\u7684\u6b21\u5e8f\u7edf\u8ba1\u91cf,\u90a3\u4e48\u6709
\\[ P(X_{(k)}\\leq x)=\\sum\\limits_{j=k}^nC_n^jF(x)^j[1-F(x)]^{n-j} \\] \u4e5f\u5c31\u662f\u8bf4\u5927\u4e8e x \u7684\u968f\u673a\u53d8\u91cf\u4e2a\u6570\u81f3\u5c11\u6709 k \u4e2a \\[ p_k(x)=C_n^1p(x)C_{n-1}^{k-1}F(x)^{k-1}[1-F(x)]^{n-k}=\\frac{n!}{(k-1)!(n-k)!}F(x)^{k-1}p(x)[1-F(x)]^{n-k} \\] \u5148\u9009\u4e00\u4e2a\u7b49\u4e8e x \u7684,\u7136\u540e k-1 \u4e2a\u5c0f\u96e8 x \u7684,\u5269\u4e0b\u7684\u5927\u4e8e x
\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u5728\u8003\u8651\u6b21\u5e8f\u7edf\u8ba1\u91cf\u7684\u65f6\u5019,\u8981\u901a\u8fc7\u5206\u6790\u539f\u59cb\u968f\u673a\u53d8\u91cf\u6765\u95f4\u63a5\u8003\u5bdf
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_4","title":"\u590d\u5408 Poisson \u8fc7\u7a0b","text":" \u8fd9\u4e00\u8282\u4e3b\u8981\u7814\u7a76\\(Z(t)=\\sum\\limits_{i=1}^{N(t)}\\xi_i\\)\u5176\u4e2d\\(N(t)\\sim P(\\lambda t)\\) ,\\(\\xi_i\\)\u72ec\u7acb\u540c\u5206\u5e03,\u4e14\\(E\\xi_i=\\mu,Var\\xi_i=\\sigma^2\\)
\\(EZ(t)=\\mu\\lambda t\\)
\\(EZ(t) = E\\sum\\limits_{i=1}^{N(t)}\\xi_i= \\sum\\limits_{n=0}^\\infty E(\\sum\\limits_{i=1}^{N(t)}\\xi_i|N(t)=n)P(N(t)=n) \\\\\\qquad =\\sum\\limits_{n=0}^\\infty E\\sum\\limits_{i=1}^n\\xi_i P(N(t)=n)= \\sum\\limits_{n=0}^\\infty n\\mu P(N(t)=n)\\\\\\qquad =\\mu EN(t)=\\mu\\lambda t\\) \\(VarZ(t)=(\\sigma^2+\\mu^2)\\lambda t\\)
\\(E(Z(t)^2) = E(\\sum\\limits_{i=1}^{N(t)}\\xi_i)^2=\\sum\\limits_{n=0}^\\infty E((\\sum\\limits_{i=1}^{N(t)}\\xi_i)^2|N(t)=n)P(N(t)=n)\\\\ \\qquad=\\sum\\limits_{n=0}^\\infty E(\\sum\\limits_{i=1}^n\\xi_i)^2P(N(t)=n)=\\sum\\limits_{n=0}^\\infty (n\\sigma^2+\\mu^2n^2)P(N(t)=n)\\\\ \\qquad=\\sigma^2EN(t)+\\mu^2E(N(t))^2=(\\mu^2+\\sigma^2)\\lambda t+\\mu^2\\lambda^2 t^2\\)
\\(VarZ(t)=E(Z(t)^2)-(EZ(t))^2=(\\sigma^2+\\mu^2)\\lambda t\\)
\u8fd9\u91cc\\(E(\\sum\\limits_{i=1}^n\\xi_i)^2=nE\\xi_i^2+(n^2-n)E\\xi_i\\xi_j,\\quad i\\neq j\\) \u72ec\u7acb\u5e73\u7a33\u589e\u91cf\u6027
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_5","title":"\u975e\u9f50\u6b21 Poisson \u8fc7\u7a0b","text":"\u4e4b\u524d\u5b66\u4e60\u7684 Poisson \u8fc7\u7a0b\u53ea\u548c\u65f6\u95f4\u6bb5\u6709\u5173,\u6362\u53e5\u8bdd\u8bf4\u7cfb\u7edf\u5728\u5404\u4e2a\u65f6\u523b\u7684\u7e41\u5fd9\u7a0b\u5ea6\u662f\u4e00\u6837\u7684\n\u4f46\u662f\u6bd4\u5982\u98df\u5802\u5c31\u9910,\u5f88\u660e\u663e\u5403\u996d\u65f6\u95f4\u4eba\u66f4\u591a,\u8fd9\u5c31\u662f\u975e\u9f50\u6b21\u7684\u60c5\u51b5\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/03-Poisson%E8%BF%87%E7%A8%8B/#poisson_6","title":"\u591a\u7ef4Poisson\u70b9\u8fc7\u7a0b","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/","title":"Markov Chain","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#markov-chain_1","title":"Markov Chain\u7684\u57fa\u672c\u6027\u8d28","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_1","title":"\u5b9a\u4e49","text":" Markov Chain\u662f\u4e00\u7c7b\u7279\u6b8a\u7684\u968f\u673a\u8fc7\u7a0b,\u65f6\u95f4\u53c2\u6570\u7a7a\u95f4\u4e3a\u8fde\u7eed\u6216\u8005\u79bb\u6563\u96c6,\u4f46\u662f\u72b6\u6001\u7a7a\u95f4\u81f3\u591a\u662f\u53ef\u6570\u96c6
\\(X=(X_n,n\\geq 1)\\)\u662f\\(Markov-Chain \\iff,\\forall n\\geq 0,\\forall i,j,\\forall i_0,i_1\\cdots,i_{n-1}:P(X_{n+1}=j|X_n=i,X_{n-1}=i_{n-1},\\cdots,X_0=i_0)=P(X_{n+1}=j|X_n=i)\\)
\u4ee4\\(p_{n;ij}=P(X_{n+1}=j|X_n=i)\\),\u5219\\(p_{n;ij}\\)\u4e3aMarkov Chain\u5728 n \u65f6\u523b\u5b58\u72b6\u6001 i \u8f6c\u5316\u5230\u72b6\u6001 j \u7684\u6982\u7387,\u7279\u522b\u7684\u5982\u679c\\(p_{n;ij}\\)\u4e0e n \u65e0\u5173,\u90a3\u4e48\u79f0X \u662f(\u65f6\u95f4)\u9f50\u6b21\u9a6c\u5c14\u79d1\u592b\u94fe
\\(P=(p_{ij})_{n\\times n}\\)\u4e3a\u72b6\u6001\u8f6c\u79fb\u77e9\u9635
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#markov-chain_2","title":"Markov-Chain\u7684\u5206\u5e03","text":" \u5b9a\u4e49:\\(P_k(i)=P(X_k=i)\\),\\(i.e.P_k(i)\\)\u4e3aMarkov Chain\u5728 \\(k\\) \u65f6\u523b\u72b6\u6001\u4e3a \\(i\\) \u7684\u6982\u7387 \\(p_k=(P_k(1),P_k(2),\\cdots,P_k(n))\\)\u4e3aMarkov Chain\u5728 \\(k\\) \u65f6\u523b\u7684\u5206\u5e03
\\(p_0=(P_0(1),P_0(2),\\cdots,P_0(n))\\)\u4e3a\u521d\u59cb\u5206\u5e03,\u521d\u59cb\u5206\u5e03\u548c\u72b6\u6001\u8f6c\u79fb\u77e9\u9635\u5b8c\u5168\u51b3\u5b9a\u4e86Markov Chain\u7684\u5206\u5e03
\u5bb9\u6613\u5f97\u5230\\(p_n=p_0P^n\\)
\\(P(X_0=i_0,X_1=i_1,\\cdots,X_n=i_n)=P(X_0=i_0)P(X_1=i_1|X_0=i_0)\\cdots P(X_n=i_n|X_{n-1}=i_{n-1})=p_0(i_0)p_{i_0i_1}p_{i_1i_2}\\cdots p_{i_{n-1}i_n}\\)
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#m-","title":"m-\u6b65\u8f6c\u79fb\u6982\u7387","text":""},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_2","title":"\u72b6\u6001\u7a7a\u95f4\u5206\u89e3","text":"\u7c7b\u4f3c\u7fa4\u4f5c\u7528\u7684\u8f68\u9053\n
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_3","title":"\u4e92\u901a\u7c7b","text":" \u79f0\u72b6\u6001\\(i\\)\u53ef\u5230\u8fbe\u72b6\u6001\\(j\\),\u5982\u679c\u5b58\u5728\\(n\\geq 0\\)\u4f7f\u5f97\\(p_{ij}^{(n)}>0\\),\u8bb0\u4f5c\\(i\\rightarrow j\\) \u7ea6\u5b9a\\(p_{ii}^{(0)}=1,p_{ij}^{(0)}=0,i\\neq j\\)
\u5b9a\u4e49:\u72b6\u6001\\(i\\)\u548c\u72b6\u6001\\(j\\)\u4e92\u901a,\u5982\u679c\\(i\\rightarrow j\\)\u4e14\\(j\\rightarrow i\\),\u8bb0\u4f5c\\(i\\leftrightarrow j\\)
\u4e92\u901a\u662f\u7b49\u4ef7\u5173\u7cfb,\u5c06\u72b6\u6001\u7a7a\u95f4\u5206\u89e3\u4e3a\u4e92\u901a\u7c7b.\u6ee1\u8db3:
\u5bf9\u79f0\u6027:\\(i\\leftrightarrow j\\Rightarrow j\\leftrightarrow i\\) \u4f20\u9012\u6027:\\(i\\leftrightarrow j,j\\leftrightarrow k\\Rightarrow i\\leftrightarrow k\\) \u81ea\u53cd\u6027:\\(i\\leftrightarrow i\\) \u72b6\u6001\u7a7a\u95f4\u4e2d\u7684\u4e92\u901a\u7c7b\u662f\u4e0d\u76f8\u4ea4\u7684,\u4e14\u4e92\u901a\u7c7b\u7684\u5e76\u662f\u6574\u4e2a\u72b6\u6001\u7a7a\u95f4
\u5982\u679c\u521d\u59cb\u72b6\u6001\u5728\u67d0\u4e2a\u4e92\u901a\u7c7b\u4e2d,\u90a3\u4e48\u4ee5\u540e\u7684\u72b6\u6001\u90fd\u5728\u8fd9\u4e2a\u4e92\u901a\u7c7b\u4e2d "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_4","title":"\u5468\u671f","text":" \\(d_i=\\gcd\\{n\\geq 1:p_{ii}^{(n)}>0\\}\\)\u79f0\u4e3a\u72b6\u6001i\u7684\u5468\u671f,\u5982\u679c\\(d_i=1\\),\u5219\u79f0\u72b6\u6001i\u662f\u975e\u5468\u671f\u7684,\u5426\u5219\u79f0\u72b6\u6001i\u662f\u5468\u671f\u7684
\\(p_{ii}^{(n)}>0\\)\u8868\u793a\u72b6\u6001i\u5728n\u6b65\u4e4b\u540e\u53c8\u56de\u5230\u4e86\u72b6\u6001 i "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#41","title":"\u5b9a\u7406 4.1","text":" \u5982\u679c\\(i \\leftrightarrow j\\),\u90a3\u4e48\\(d_i=d_j\\) "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_5","title":"\u72b6\u6001\u7a7a\u95f4\u5206\u89e3","text":" \u7ed9\u5b9a\u72b6\u6001\\(j\\),\u4ee4\\(T_j=\\inf\\{n\\geq 1:X_n=j\\}\\),\u5373\\(T_j\\)\u662fMarkov Chain\u7b2c\u4e00\u6b21\u5230\u8fbe\u72b6\u6001j\u7684\u65f6\u523b
\u7ea6\u5b9a:\\(\\inf\\emptyset=+\\infty\\),\u5373\u5982\u679cMarkov Chain\u6c38\u8fdc\u4e0d\u4f1a\u5230\u8fbe\u72b6\u6001j,\u90a3\u4e48\\(T_j=+\\infty\\) \u5f53\\(X_0=j\\)\u65f6,\\(T_j\\)\u8868\u793a\u9996\u6b21\u56de\u5230\u72b6\u6001j\u7684\u65f6\u523b,\u4e0d\u7136\u8868\u793a\u9996\u6b21\u5230\u8fbe\u72b6\u6001j\u7684\u65f6\u523b \u5982\u679c\\(P(T_j<\\infty |X_0=j)=1\\),\u4e5f\u5c31\u662f\u8bf4\u5728\u6709\u9650\u7684\u65f6\u95f4\u5185\u4e00\u5b9a\u4f1a\u56de\u5230\u72b6\u6001\\(j\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u5e38\u8fd4\u72b6\u6001
\u5982\u679c\\(E(T_j|X_0=j)<\\infty\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001 \u5982\u679c\\(E(T_j|X_0=j)=\\infty\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u96f6\u5e38\u8fd4\u72b6\u6001 \u5982\u679c\\(P(T_j<\\infty |X_0=j)<1\\),\u90a3\u4e48\u79f0\\(j\\)\u662f\u77ac\u65f6\u72b6\u6001 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#42","title":"\u5b9a\u7406 4.2","text":" \u5982\u679c\\(i\\leftrightarrow j\\),\u90a3\u4e48:
\\(i\\)\u662f\u77ac\u65f6\u72b6\u6001\\(\\iff j\\)\u662f\u77ac\u65f6\u72b6\u6001 \\(i\\)\u662f\u5e38\u8fd4\u72b6\u6001\\(\\iff j\\)\u662f\u5e38\u8fd4\u72b6\u6001 \\(i\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001\\(\\iff j\\)\u662f\u6b63\u5e38\u8fd4\u72b6\u6001 \u8fd9\u8868\u660e\u5e38\u8fd4\u6027\u548c\u77ac\u65f6\u6027\u90fd\u662f\"\u7c7b\u6027\u8d28\"
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#43","title":"\u5b9a\u7406 4.3","text":" \\(i\\)\u662f\u5e38\u8fd4\u7684,\u90a3\u4e48\\(C_i=\\{j:i\\leftrightarrow j\\}\\)\u662f\u95ed\u96c6 "},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#44","title":"\u5b9a\u7406 4.4(\u72b6\u6001\u7a7a\u95f4\u7684\u5206\u89e3)","text":" \\(\\varepsilon = C_1+\\cdots+C_m+\\mathcal{N}\\),\u5176\u4e2d\\(C_1,\\cdots,C_m\\)\u662f\u5e38\u8fd4\u7c7b,\\(\\mathcal{N}\\)\u662f\u77ac\u65f6\u72b6\u6001\u5168\u4f53,\\(m\\)\u53ef\u4ee5\u53d6\u65e0\u7a77
\u4e0d\u540c\u5e38\u8fd4\u72b6\u6001\u7b49\u4ef7\u7c7b\u662f\u4e0d\u76f8\u4ea4\u4e4b\u95ed
"},{"location":"Notebook/%E9%9A%8F%E6%9C%BA%E8%BF%87%E7%A8%8B/04-Markov%E8%BF%87%E7%A8%8B/#_6","title":"\u5e38\u8fd4\u6027\u4e0e\u77ac\u65f6\u6027","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/","title":"\u9ad8\u7b49\u4ee3\u6570","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/","title":"\u7ebf\u6027\u65b9\u7a0b\u7ec4","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#11","title":"1.1 \u89e3\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u77e9\u9635\u6d88\u5143\u6cd5","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_2","title":"\u7814\u7a76\u95ee\u9898:","text":" \u7ebf\u6027\u65b9\u7a0b\u7ec4\u65f6\u5019\u4e00\u5b9a\u6709\u89e3,\u6709\u89e3\u65f6\u6709\u591a\u5c11\u89e3 \u5982\u4f55\u6c42\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u89e3 \u6709\u89e3\u65f6,\u662f\u5426\u6bcf\u4e00\u4e2a\u89e3\u90fd\u6ee1\u8db3\u5b9e\u9645\u9700? \u591a\u4e2a\u89e3\u4e4b\u95f4\u7684\u5173\u7cfb\u5982\u4f55? "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_3","title":"\u7ebf\u6027\u65b9\u7a0b\u7ec4\u7684\u521d\u7b49\u53d8\u6362","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1","title":"\u5b9a\u4e49 1","text":" \u7531\\(s\\cdot m\\)\u4e2a\u6570\u6392\u6210\\(s\\)\u884c\\(m\\)\u5217\u7684\u6570\u8868\u79f0\u4e3a\\(s\\times m\\)\u77e9\u9635,\u5176\u4e2d\u7684\u6bcf\u4e00\u4e2a\u6570\u79f0\u4e3a\u77e9\u9635\u7684\u5143\u7d20,\u7b2c\\(i\\)\u884c\u7b2c\\(j\\)\u5217\u7684\u5143\u7d20\u8bb0\u4e3a\u77e9\u9635\u7684\\((i,j)\\)\u5143 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#_4","title":"\u77e9\u9635\u7684\u884c\u521d\u7b49\u53d8\u6362","text":" \u628a\u4e00\u884c\u7684\u500d\u6570\u52a0\u5230\u53e6\u4e00\u884c \u4ea4\u6362\u4e24\u884c \u4ee5\u975e\u96f6\u6570\u4e58\u4e00\u884c "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_1","title":"\u5b9a\u7406 1","text":" \u4efb\u4e00\u77e9\u9635\u53ef\u4ee5\u7ecf\u8fc7\u4e00\u7cfb\u5217\u521d\u7b49\u884c\u53d8\u6362\u5316\u6210\u9636\u68af\u578b\u77e9\u9635,\u5e76\u4e14\u8fdb\u4e00\u6b65\u80fd\u5316\u6210\u7b80\u5316\u884c\u9636\u68af\u578b\u77e9\u9635 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#12","title":"1.2 \u7ebf\u6027\u65b9\u7a0b\u7ec4\u89e3\u7684\u60c5\u51b5\u53ca\u5176\u5224\u522b\u51c6\u5219","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_2","title":"\u5b9a\u7406 1","text":" \u7cfb\u6570\u548c\u5e38\u6570\u9879\u4e3a\u6709\u7406\u6570(\u5b9e\u6570,\u590d\u6570)\u7684\\(n\\)\u5143\u7ebf\u6027\u65b9\u7a0b\u7ec4\u89e3\u7684\u60c5\u51b5\u6709\u4e09\u79cd: \u9636\u68af\u578b\u65b9\u7a0b\u7ec4\u6709\"\\(0=d\\neq 0\\)\"\u7684\u5f62\u5f0f,\u5219\u65b9\u7a0b\u7ec4\u65e0\u89e3 \u5426\u5219,\u82e5\u975e\u96f6\u884c\u6570\u76ee\\(r=n\\),\u5219\u65b9\u7a0b\u7ec4\u6709\u552f\u4e00\u89e3 \u4e0d\u7136\\((r<n)\\)\u65b9\u7a0b\u7ec4\u6709\u65e0\u7a77\u591a\u89e3
\u63a8\u8bba1:\\(n\\)\u5143\u9f50\u6b21\u7ebf\u6027\u65b9\u7a0b\u7ec4\u6709\u975e\u96f6\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f\u4ed6\u7684\u7cfb\u6570\u77e9\u9635\u7ecf\u8fc7\u521d\u7b49\u53d8\u6362\u5316\u6210\u7684\u9636\u68af\u578b\u77e9\u9635\u4e2d\\(r<n\\)
\u63a8\u8bba2:\u82e5\\(n\\)\u5143\u9f50\u6b21\u7ebf\u6027\u65b9\u7a0b\u7ec4\u65b9\u7a0b\u7684\u6570\u76ee\u5c0f\u4e8e\u672a\u77e5\u6570\u7684\u6570\u76ee\u90a3\u4e48\u65b9\u7a0b\u4e00\u5b9a\u6709\u975e\u96f6\u89e3 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#13","title":"1.3 \u6570\u57df","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_3","title":"\u5b9a\u4e49 1","text":" \\(K\\subset C\\)\u5982\u679c\u6ee1\u8db3: \\(0,1\\in K\\) \\(a,b\\in K\\Rightarrow a\\pm b\\in K\\)\u82e5\\(b\\neq 0\\),\u5219\\(a\\cdot b,\\frac{a}{b}\\in K\\) \u90a3\u4e48\u79f0\\(K\\)\u4e3a\u4e00\u4e2a\u6570\u57df
\u8fd9\u91cc 0,1\u5b9e\u9645\u4e0a\u8868\u793a\u7684\u52a0\u6cd5\u5355\u4f4d\u5143\u548c\u4e58\u6cd5\u7684\u5355\u4f4d\u5143(\u4ee5\u540e\u4f1a\u62bd\u8c61\u7684\u8ba8\u8bba) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/01-%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84/#1_4","title":"\u547d\u9898 1","text":" \u4efb\u4e00\u6570\u57df\u5305\u542b\u6709\u7406\u6570\u57df(\u5373\u6709\u7406\u6570\u57df\u662f\u6700\u5c0f\u7684\u6570\u57df) \u590d\u6570\u57df\u662f\u6700\u5927\u7684\u6570\u57df "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/","title":"\u884c\u5217\u5f0f","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#21-n","title":"2.1 \\(n\\)\u5143\u6392\u5217","text":" \u987a\u5e8f:\\(ij,s.t.j<j\\) \u9006\u5e8f:\\(ij,s.t.i>j\\) \u9006\u5e8f\u6570:\u6392\u5217\u4e2d\u9006\u5e8f\u7684\u4e2a\u6570,\u8bb0\u4f5c\\(\\tau(\\sigma)\\) \u9006\u5e8f\u6570\u4e3a\u5947\u6570\u7684\u6392\u5217\u79f0\u4e3a\u5947\u6392\u5217,\u4e3a\u5076\u6570\u7684\u6392\u5217\u79f0\u4e3a\u5076\u6392\u5217 \u5bf9\u6362,\u4ea4\u6362\\(\\sigma_i,\\sigma_j\\)\u7684\u4f4d\u7f6e,\u8bb0\u4f5c\\((\\sigma_i,\\sigma_j)\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1","title":"\u5b9a\u7406 1","text":" \u5bf9\u6362\u6539\u53d8\\(n\\)\u5143\u6392\u5217\u7684\u5947\u5076\u6027 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#2","title":"\u5b9a\u7406 2","text":" \u4efb\u4e00\\(n\\)\u5143\u6392\u5217\u53ef\u4ee5\u7ecf\u8fc7\u4e00\u7cfb\u5217\u5bf9\u6362\u53d8\u6210\u6392\u5217\\((1,2,3,\\cdots,n)\\),\u6240\u505a\u7684\u5bf9\u6362\u6b21\u6570\u4e0e\u539f\u6392\u5217\u7684\u5947\u5076\u6027\u76f8\u540c
\u5728\u5168\u90e8\\(n!\\)\u4e2a\u6392\u5217\u4e2d,\u5947\u6392\u5217\u548c\u5076\u6392\u5217\u5404\u5360\u4e00\u534a
"},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#22","title":"2.2 \u884c\u5217\u5f0f\u7684\u5b9a\u4e49","text":" \\(n\\)\u7ea7\u77e9\u9635\\(A=(a_{i,j})_{n\\times n}\\)\u7684\u884c\u5217\u5f0f\u4e3a:\\(\\det(A)=\\sum\\limits_{j_1j_2\\cdots j_n}(-1)^{\\tau(j_1j_2\\cdots j_n)}a_{1,j_1}a_{2,j_2}\\cdots a_{n,j_n}\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1_1","title":"\u547d\u9898 1","text":" \u4e0a\u4e09\u89d2\u884c\u5217\u5f0f\u7684\u503c\u7b49\u4e8e\u4e3b\u5bf9\u89d2\u7ebf\u5143\u7d20\u7684\u4e58\u79ef "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#23","title":"2.3 \u884c\u5217\u5f0f\u7684\u6027\u8d28","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#_2","title":"\u6027\u8d28","text":" \\(\\det(A^T)=\\det(A)\\),\u5373\u884c\u5217\u4e92\u6362,\u884c\u5217\u5f0f\u7684\u503c\u4e0d\u53d8 \u884c\u5217\u5f0f\u4e00\u884c\u7684\u516c\u56e0\u5b50\u53ef\u4ee5\u63d0\u51fa\u53bb \u4ece\u800c\u5982\u679c\u6709\u4e00\u884c\u5168\u4e3a0,\u5219\u884c\u5217\u5f0f\u4e3a0 \u82e5\u884c\u5217\u5f0f\u4e2d\u4e00\u884c\u662f\u4e24\u7ec4\u6570\u7684\u548c,\u5219\u6b64\u884c\u5217\u5f0f\u7b49\u4e8e\u4e24\u4e2a\u884c\u5217\u5f0f\u7684\u548c,\u8fd9\u4e24\u4e2a\u884c\u5217\u5f0f\u5bf9\u5e94\u7684\u8fd9\u4e00\u884c\u5206\u522b\u662f\u7b2c\u4e00\u7ec4\u6570\u548c\u7b2c\u4e8c\u7ec4\u6570,\u5176\u4f59\u7684\u884c\u4e0e\u539f\u884c\u5217\u5f0f\u76f8\u540c \u4e24\u884c\u4e92\u6362,\u884c\u5217\u5f0f\u53cd\u53f7 \u4e24\u884c\u76f8\u540c,\u884c\u5217\u5f0f\u7684\u503c\u4e3a 0 \u4e24\u884c\u6210\u6bd4\u4f8b,\u884c\u5217\u5f0f\u7684\u503c\u4e3a 0 \u628a\u4e00\u884c\u7684\u500d\u6570\u52a0\u5230\u53e6\u4e00\u884c\u4e0a,\u884c\u5217\u5f0f\u7684\u503c\u4e0d\u53d8 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#24","title":"2.4 \u884c\u5217\u5f0f\u6309\u884c(\u5217)\u5c55\u5f00","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1_2","title":"\u5b9a\u4e49 1","text":" \u4ee3\u6570\u4f59\u5b50\u5f0f:\\(A_{i,j}=(-1)^{i+j}M_{i,j}\\),\u5176\u4e2d\\(M_{i,j}\\)\u662f\\(A\\)\u53bb\u6389\u7b2c\\(i\\)\u884c\u7b2c\\(j\\)\u5217\u540e\u7684\\(n-1\\)\u9636\u884c\u5217\u5f0f "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1_3","title":"\u5b9a\u7406 1","text":" \\(n\\)\u7ea7\u77e9\u9635\\(A\\)\u7684\u884c\u5217\u5f0f\u7b49\u4e8e\u4efb\u4e00\u884c\u7684\u5404\u5143\u7d20\u4e0e\u5176\u5bf9\u5e94\u7684\u4ee3\u6570\u4f59\u5b50\u5f0f\u4e4b\u548c:\\(\\det(A)=a_{i,1}A_{i,1}+a_{i,2}A_{i,2}+\\cdots+a_{i,n}A_{i,n}=\\sum\\limits_{j=1}^n a_{i,j}A_{i,j}\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#2_1","title":"\u5b9a\u7406 2","text":" \u5b9a\u7406 1 \u6539\u4e3a\u5217\u4e5f\u6210\u7acb "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#3","title":"\u5b9a\u7406 3","text":" \\(n\\)\u9636\u77e9\u9635\\(A\\)\u7684\u884c\u5217\u5f0f\u7684\u7b2c\\(i\\)\u884c\u5143\u7d20\u548c\u7b2c\\(j\\)\u884c\u5143\u7d20\u5bf9\u5e94\u7684\u4ee3\u6570\u4f59\u5b50\u5f0f\u7684\u4e58\u79ef\u548c\u4e3a 0,\u5373\\(\\sum\\limits_{j=1}^n a_{i,j}A_{k,j}=0\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#4","title":"\u5b9a\u7406 4","text":" \u5b9a\u7406 3\u6539\u4e3a\u5217\u4e5f\u6210\u7acb "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#vandermoode","title":"Vandermoode \u884c\u5217\u5f0f","text":" \\(\\begin{vmatrix}1 & 1 & \\cdots & 1\\\\ x_1 & x_2 & \\cdots & x_n \\\\\\vdots & \\vdots & \\cdots & \\vdots \\\\x_1^{n-1} & x_2^{n-1} & \\cdots & x_n^{n-1} \\end{vmatrix}=\\prod\\limits_{1\\leq i<j\\leq n}(x_j-x_i)\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#25-cramer","title":"2.5 Cramer \u6cd5\u5219","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1_4","title":"\u5b9a\u7406 1","text":" \u6570\u57df\\(K\\)\u4e0a\u7684\\(n\\)\u4e2a\u65b9\u7a0b\\(n\\)\u4e2a\u672a\u77e5\u6570\u7684\u7ebf\u6027\u65b9\u7a0b\u7ec4\\(AX=B\\)\u6709\u552f\u4e00\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f\\(\\det(A)\\neq 0\\) \u63a8\u8bba 1:\\(n\\)\u5143\u9f50\u6b21\u7ebf\u6027\u65b9\u7a0b\u7ec4\u6709\u975e\u96f6\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f\\(\\det(A)=0\\),\u53ea\u6709\u96f6\u89e3\u7684\u5145\u8981\u6761\u4ef6\u662f\\(\\det(A)\\neq 0\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#2_2","title":"\u5b9a\u7406 2","text":" \\(AX=B\\)\u7684\u89e3\\(x_i=\\frac{\\det(A_i)}{\\det(A)}\\),\u5176\u4e2d\\(A_i\\)\u662f\\(A\\)\u7684\u7b2c\\(i\\)\u5217\u5143\u7d20\u6362\u6210\\(B\\)\u7684\u5143\u7d20\u540e\u5f97\u5230\u7684\u77e9\u9635 \u5b9a\u7406 1\u7684\u5145\u5206\u6027\u548c\u5b9a\u7406 2 \u5408\u8d77\u6765\u79f0\u4e3a Cramer \u6cd5\u5219 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#26-k","title":"2.6 \u884c\u5217\u5f0f\u6309 k \u884c\u5c55\u5f00","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1_5","title":"\u5b9a\u4e49 1","text":" \\(n\\)\u7ea7\u77e9\u9635\\(A\\)\u4e2d\u4efb\u53d6\\(k\\)\u884c,\\(k\\)\u5217,\u4f4d\u4e8e\u8fd9\u4e9b\u884c\u548c\u5217\u7684\u4ea4\u70b9\u5904\u7684\\(k^2\\)\u4e2a\u5143\u7d20\u6309\u539f\u6765\u7684\u6392\u5217\u65b9\u6cd5\u6784\u6210\\(A\\)\u7684\u4e00\u4e2a\\(k\\)\u7ea7\u5b50\u5f0f,\u8bb0\u4f5c\\(A\\left(\\begin{matrix} i_1i_2\\cdots i_k\\\\ j_1j_2\\cdots j_k \\end{matrix}\\right)\\),\u5212\u53bb\u8fd9\\(k\\)\u884c\\(k\\)\u5217\u540e\u5f97\u5230\u7684\\(n-k\\)\u7ea7\u77e9\u9635\u7684\u884c\u5217\u5f0f\u79f0\u4e3a\u5176\u4f59\u5b50\u5f0f,\u5728\u4f59\u5b50\u5f0f\u524d\u9762\u4e58\u4ee5\\((-1)^{i_1+i_2+\\cdots+i_k+j_1+\\cdots+j_k }\\)\u5f97\u5230\u4ee3\u6570\u4f59\u5b50\u5f0f,\u8bb0\u4f5c\\(A\\left(\\begin{matrix} i'_1i'_2\\cdots i'_{n-k}\\\\ j'_1j'_2\\cdots j'_{n-k} \\end{matrix}\\right)\\),\u5176\u4e2d\\((i'_1i'_2\\cdots i'_{n-k})=(1,2,\\cdots,n)-(i_1i_2\\cdots i_k)\\),\\((j'_1j'_2\\cdots j'_{n-k})=(1,2,\\cdots,n)-(j_1j_2\\cdots j_k)\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/02-%E8%A1%8C%E5%88%97%E5%BC%8F/#1laplace","title":"\u5b9a\u7406 1(Laplace\u5b9a\u7406)","text":" \u5728\\(n\\)\u9636\u77e9\u9635\\(A\\)\u4e2d\u53d6\u5b9a\\(i_1,i_2,\\cdots,i_k\\)\u884c,\u5219\u8fd9\\(k\\)\u884c\u5143\u7d20\u5f62\u6210\u7684\u6240\u6709\\(k\\)\u9636\u5b50\u5f0f\u4e0e\u5b83\u4eec\u7684\u4ee3\u6570\u4f59\u5b50\u5f0f\u4e4b\u548c\u7b49\u4e8e\\(\\det(A)\\) \u63a8\u8bba:\u5206\u5757\u77e9\u9635\u884c\u5217\u5f0f\\(\\begin{vmatrix}A & B\\\\ 0 & C\\end{vmatrix}=\\det(A)\\det(C)\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/","title":"n\u7ef4\u5ea6\u91cf\u7ebf\u6027\u7a7a\u95f4","text":" \u5411\u91cf\u7a7a\u95f4\\(K^n\\): \u6570\u57df\\(K\\),\\(n\\in N^*\\),\u4ee4\\(K^n=\\{(x_1,x_2,\\cdots,x_n)|x_i\\in K,i=1,2,\\cdots,n\\}\\),\u79f0\u4e3a\\(n\\)\u7ef4\u5411\u91cf\u7a7a\u95f4 \u5728\\(K^n\\)\u4e2d\u5b9a\u4e49\u52a0\u6cd5\u548c\u6570\u4e58\u8fd0\u7b97 \u52a0\u6cd5:\\((x_1,x_2,\\cdots,x_n)+(y_1,y_2,\\cdots,y_n)=(x_1+y_1,x_2+y_2,\\cdots,x_n+y_n)\\) \u6570\u4e58:\\(k(x_1,x_2,\\cdots,x_n)=(kx_1,kx_2,\\cdots,kx_n)\\) \u8fd0\u7b97\u6cd5\u5219 \u52a0\u6cd5\u4ea4\u6362\u5f8b:\\(\\alpha+\\beta=\\beta+\\alpha\\) \u52a0\u6cd5\u7ed3\u5408\u5f8b:\\((\\alpha+\\beta)+\\gamma=\\alpha+(\\beta+\\gamma)\\) \u52a0\u6cd5\u5355\u4f4d\u5143:\\(\\exists 0\\in K^n,\\forall \\alpha\\in K^n,\\alpha+0=\\alpha\\) \u52a0\u6cd5\u9006\u5143:\\(\\forall \\alpha\\in K^n,\\exists -\\alpha\\in K^n,\\alpha+(-\\alpha)=0\\) \u4e58\u6cd5\u5355\u4f4d\u5143:\\(1\\alpha=\\alpha\\) \u6570\u4e58\u7ed3\u5408\u5f8b:\\((kl)\\alpha=k(l\\alpha)\\) \u6570\u4e58\u5206\u914d\u5f8b:\\(k(\\alpha+\\beta)=k\\alpha+k\\beta\\) \u6570\u4e58\u5206\u914d\u5f8b:\\((k+l)\\alpha=k\\alpha+l\\alpha\\) \u4ee5\u4e0a\u5b9a\u4e49\u7684\u6709\u5ea6\u91cf\u7684\u7ebf\u6027\u7a7a\u95f4\u5b9e\u9645\u4e0a\u662f\u57fa\u4e8e\u6570\u7684,\u6570\u7684\u52a0\u6cd5\u548c\u6570\u4e58\u5c31\u662f\u6309\u901a\u5e38\u6240\u8ba4\u4e3a\u7684\u5b9a\u4e49\u7684,\u4f46\u662f\u5b9e\u9645\u4e0a\u7ebf\u6027\u7a7a\u95f4\u4e2d\u7684\u5143\u7d20\u4e0d\u4e00\u5b9a\u662f\u6570,\u4ee5\u4e0b\u7ed9\u51fa\u6700\u57fa\u672c\u7684\u5b9a\u4e49:
\u6620\u5c04:\u8bbe\\(X\\)\u548c\\(Y\\)\u662f\u4e24\u4e2a\u96c6\u5408,\u5982\u679c\u5b58\u5728\u4e00\u4e2a\u89c4\u5219\\(f\\),\u4f7f\u5f97\u5bf9\u4e8e\\(X\\)\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\\(x\\),\u90fd\u6709\u552f\u4e00\u7684\u5143\u7d20\\(y\\)\u4e0e\u4e4b\u5bf9\u5e94,\u5219\u79f0\\(f\\)\u662f\u4ece\\(X\\)\u5230\\(Y\\)\u7684\u6620\u5c04,\u8bb0\u4f5c\\(f:X\\to Y\\) \u5355\u5c04:\u5982\u679c\u5bf9\u4e8e\\(X\\)\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\\(x\\),\u90fd\u6709\u552f\u4e00\u7684\u5143\u7d20\\(y\\)\u4e0e\u4e4b\u5bf9\u5e94,\u5219\u79f0\\(f\\)\u662f\u4ece\\(X\\)\u5230\\(Y\\)\u7684\u5355\u5c04 \u6ee1\u5c04:\u5982\u679c\u5bf9\u4e8e\\(Y\\)\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\\(y\\),\u90fd\u6709\u552f\u4e00\u7684\u5143\u7d20\\(x\\)\u4e0e\u4e4b\u5bf9\u5e94,\u5219\u79f0\\(f\\)\u662f\u4ece\\(X\\)\u5230\\(Y\\)\u7684\u6ee1\u5c04 \u53cc\u5c04:\u5982\u679c\\(f\\)\u662f\u5355\u5c04\u548c\u6ee1\u5c04,\u5219\u79f0\\(f\\)\u662f\u4ece\\(X\\)\u5230\\(Y\\)\u7684\u53cc\u5c04 \u5b9a\u4e49 1 : \u975e\u7a7a\u96c6\u5408\\(S\\)\u4e0a\u7684\u4e00\u4e2a\u4ee3\u6570\u8fd0\u7b97\u662f\u6307\\(S\\times S\\to S\\)\u7684\u4e00\u4e2a\u4ee3\u6570\u8fd0\u7b97 \u7ebf\u6027\u7a7a\u95f4:\u8bbe\\(V\\)\u662f\u4e00\u4e2a\u975e\u7a7a\u96c6\u5408,\\(K\\)\u662f\u4e00\u4e2a\u6570\u57df,\u5982\u679c\u5728\\(V\\)\u4e0a\u6709\u4e00\u4e2a\u79f0\u4e3a\u52a0\u6cd5\u7684\u8fd0\u7b97\\(\\(V\\times V\\to V:(\\alpha,\\beta)\\to \\alpha+\\beta\\),\\)K,V\\(\u4e4b\u95f4\u6709\u4e00\u4e2a\u79f0\u4e3a\u6570\u4e58\u7684\u8fd0\u7b97:\\)K\\times V\\to V:(k,\\alpha)\\to k\\alpha$,\u5e76\u4e14\u6ee1\u8db3\u4ee5\u4e0b\u516b\u6761\u8fd0\u7b97\u6cd5\u5219:
\u52a0\u6cd5\u4ea4\u6362\u5f8b:\\(\\alpha+\\beta=\\beta+\\alpha\\) \u52a0\u6cd5\u7ed3\u5408\u5f8b:\\((\\alpha+\\beta)+\\gamma=\\alpha+(\\beta+\\gamma)\\) \u52a0\u6cd5\u5355\u4f4d\u5143:\\(\\exists \\vec{0}\\in V,\\forall \\alpha\\in V,\\alpha+\\vec{0}=\\alpha\\) \u52a0\u6cd5\u9006\u5143:\\(\\forall \\alpha\\in V,\\exists -\\alpha\\in V,s.t.\\;\\alpha+(-\\alpha)=\\vec{0}\\) \u4e58\u6cd5\u5355\u4f4d\u5143:\\(1\\alpha=\\alpha\\) \u6570\u4e58\u7ed3\u5408\u5f8b:\\((kl)\\alpha=k(l\\alpha)\\) \u6570\u4e58\u5206\u914d\u5f8b:\\(k(\\alpha+\\beta)=k\\alpha+k\\beta\\) \u6570\u4e58\u5206\u914d\u5f8b:\\((k+l)\\alpha=k\\alpha+l\\alpha\\) \u90a3\u4e48\\(V\\)\u79f0\u4e3a\u6570\u57df\\(K\\)\u4e0a\u7684\u7ebf\u6027\u7a7a\u95f4,\u7b80\u79f0\u7ebf\u6027\u7a7a\u95f4(\u6ce8\u610f\u52a0\u6cd5\u5355\u4f4d\u5143\u53d6\u81ea\u4e8e\\(V\\),\u4e58\u6cd5\u5355\u4f4d\u5143\u53d6\u81ea\u4e8e\\(K\\)) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#n_1","title":"n \u7ef4\u5411\u91cf\u7a7a\u95f4","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#1","title":"\u5b9a\u4e49 1","text":" \u5982\u4e0a\u5b9a\u4e49,\u7ebf\u6027\u7a7a\u95f4\u662f\u4e00\u4e2a\u96c6\u5408,\u5728\u8fd9\u4e2a\u96c6\u5408\u4e2d\u6709\u4e24\u79cd\u8fd0\u7b97,\u4e00\u79cd\u662f\u52a0\u6cd5,\u4e00\u79cd\u662f\u6570\u4e58,\u8fd9\u4e24\u79cd\u8fd0\u7b97\u6ee1\u8db3\u516b\u6761\u8fd0\u7b97\u6cd5\u5219,\u8fd9\u4e2a\u96c6\u5408\u5c31\u662f\u7ebf\u6027\u7a7a\u95f4 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#ex","title":"ex:\u7ebf\u6027\u7a7a\u95f4\u7684\u4f8b\u5b50","text":" \u51e0\u4f55\u7a7a\u95f4\\(R^3\\):\u4ee5\\(O\\)\u4e3a\u8d77\u70b9\u7684\u5411\u91cf \\(K^n=\\{(x_1,x_2,\\cdots,x_n)|x_i\\in K,i=1,2,\\cdots,n\\}\\) \u975e\u7a7a\u96c6\u5408\\(X\\)\u5230\u5b9e\u6570\u96c6\\(R\\)\u4e0a\u7684\u6240\u6709\u5b9e\u503c\u51fd\u6570\u7684\u96c6\u5408\u6784\u6210\u7ebf\u6027\u7a7a\u95f4: \\(f,g\\in X\\to R\\),\u5b9a\u4e49\u52a0\u6cd5\u548c\u6570\u4e58\u8fd0\u7b97\u5982\u4e0b: \\((f+g)(x)=f(x)+g(x)\\) \\((kf)(x)=kf(x)\\) \u4e14\u5b9a\u4e49\\(0\\)\u5143\u4e3a\\(0(x)=0\\) \u4e58\u6cd5\u5355\u4f4d\u5143\u4e3a\\(1(x)=1\\) \u90a3\u4e48\\(X\\)\u662f\u6570\u57df\\(R\\)\u4e0a\u7684\u4e00\u4e2a\u7ebf\u6027\u7a7a\u95f4 "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#_1","title":"\u7ebf\u6027\u7a7a\u95f4\u7684\u6027\u8d28","text":" \\(V\\)\u662f\u6570\u57df\\(K\\)\u4e0a\u7684\u7ebf\u6027\u7a7a\u95f4,\u5219: \u52a0\u6cd5\u5355\u4f4d\u5143\u552f\u4e00 \u6bcf\u4e2a\\(\\alpha\\in V\\)\u7684\u8d1f\u5143\u552f\u4e00 \\(0\\alpha=\\vec{0},\\forall \\alpha\\in V\\) \\(k\\vec{0}=\\vec{0},\\forall k\\in K\\) \u82e5\\(k\\alpha=\\vec{0}\\),\u5219\\(k=0\\)\u6216\\(\\alpha=\\vec{0}\\) \\((-1)\\alpha=-\\alpha\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#_2","title":"\u7ebf\u6027\u5b50\u7a7a\u95f4","text":""},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#1_1","title":"\u5b9a\u4e49 1","text":" \u8bbe\\(V\\)\u662f\u6570\u57df\\(K\\)\u4e0a\u7684\u7ebf\u6027\u7a7a\u95f4,\\(U\\subset V\\),\u5982\u679c\\(U\\)\u5bf9\u4e8e\\(V\\)\u4e2d\u5b9a\u4e49\u7684\u52a0\u6cd5\u548c\u6570\u4e58\u4e5f\u6784\u6210\u7ebf\u6027\u7a7a\u95f4,\u5219\u79f0\\(U\\)\u662f\\(V\\)\u7684\u7ebf\u6027\u5b50\u7a7a\u95f4,\u7b80\u79f0\u5b50\u7a7a\u95f4 ex:\u8fc7\u539f\u70b9\u7684\u5e73\u9762\u662f\\(R^3\\)\u7684\u5b50\u7a7a\u95f4,\u4e0d\u8fc7\u4e0d\u8fc7\u539f\u70b9\u7684\u5e73\u9762\u4e0d\u662f\\(R^3\\)\u7684\u5b50\u7a7a\u95f4 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V,i=1,2,\\cdots,s\\}\\),\u79f0\\(W\\)\u662f\u5411\u91cf\u7ec4\\(\\alpha_1,\\alpha_2,\\cdots,\\alpha_s\\)\u7684\u7ebf\u6027\u7ec4\u5408,\u5219\\(W\\)\u662f\\(V\\)\u7684\u5b50\u7a7a\u95f4,\u79f0\u4e3a\u7531\u5411\u91cf\u7ec4\\(\\alpha_1,\\alpha_2,\\cdots,\\alpha_s\\)\u751f\u6210\u7684\u5b50\u7a7a\u95f4,\u8bb0\u4f5c\\(W=Span(\\alpha_1,\\alpha_2,\\cdots,\\alpha_s)\\)\u6216\u8005\\(<\\alpha_1,\\alpha_2,\\cdots,\\alpha_s>\\) "},{"location":"Notebook/%E9%AB%98%E7%AD%89%E4%BB%A3%E6%95%B0/03-%E7%BA%BF%E6%80%A7%E7%A9%BA%E9%97%B4/#_4","title":"\u7ebf\u6027\u8868\u51fa","text":" \\(\\beta\\in W\\iff\\exists k_1,k_2,\\cdots,k_s\\in K,s.t.\\;\\beta=k_1\\alpha_1+k_2\\alpha_2+\\cdots+k_n\\alpha_s\\)\u79f0\\(\\beta\\)\u53ef\u4ee5\u7531\u5411\u91cf\u7ec4\\(\\alpha_1,\\alpha_2,\\cdots,\\alpha_s\\)\u7ebf\u6027\u8868\u51fa 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vimium-c
\u5728github\u4e0a\u7981\u7528\u4e86\"/\",\u907f\u514d\u548cgithub\u641c\u7d22\u51b2\u7a81
\u914d\u7f6e
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pdf-viwer
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\u4ee3\u66ff bing AI \u7684\u5de5\u5177 "},{"location":"Tools/vscode/","title":"Vscode","text":" plugins: One dark pro Bookmarks cmd+m \u521b\u5efa\u4e66\u7b7e cmd+n \u8df3\u8f6c\u4e0b\u4e00\u4e2a\u4e66\u7b7e cmd+N \u8df3\u8f6c\u4e0a\u4e00\u4e2a\u4e66\u7b7e \u8fd9\u91cc\u6cbf\u7528\u4e86 nvim \u4f7f\u7528 n,N \u8df3\u8f6c\u641c\u7d22\u7684\u5feb\u6377\u952e C/C++ Center Editor Window \u5c06\u5f53\u524d\u6587\u4ef6\u5c45\u4e2d Chinese (Simplified) CodeSnap \u53ef\u4ee5\u4e0d\u7528\u4f46\u662f\u4e0d\u80fd\u6ca1\u6709 Error Lens \u63d0\u793a\u9519\u8bef\u4fe1\u606f,\u975e\u5e38\u667a\u80fd Git History GitHub Copilot Image Preview markdown \u4e2d\u56fe\u7247\u9884\u89c8 Jupyter \u4ee5\u53ca\u4e00\u5806 jupyter \u81ea\u52a8\u5b89\u88c5\u7684\u63d2\u4ef6 Latex Snippets Markdown All in One Markdown Preview Enhanced Material Icon Theme Path Intellisense \u81ea\u52a8\u8865\u5168\u8def\u5f84 Pylance Python Python Debugger Rainbow CSV \u8ba9 csv \u6587\u4ef6\u66f4\u597d\u770b Remote - SSH \u8fdc\u7a0b\u8fde\u63a5,\u8fd8\u80fd\u8fde\u63a5 WSL vscode-pdf
\u9884\u89c8 pdf \u6587\u4ef6
my config file
"}]}
\ No newline at end of file
diff --git a/sitemap.xml b/sitemap.xml
index a5b137f7..1337cd4c 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -2,242 +2,247 @@
https://ljxpage.github.io/
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+ 2024-04-05
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\ No newline at end of file
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