From 5d2130684125809c7555f311f73ce502518fedff Mon Sep 17 00:00:00 2001
From: shataowei <taowei.sha@ymm56.com>
Date: Tue, 26 Nov 2019 14:42:53 +0800
Subject: [PATCH] =?UTF-8?q?=E7=89=9B=E9=A1=BF=E8=BF=AD=E4=BB=A3=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .idea/workspace.xml                           | 81 +++++++++++++------
 README.md                                     |  2 +
 ...02\345\271\263\346\226\271\346\240\271.md" | 17 ++++
 3 files changed, 76 insertions(+), 24 deletions(-)
 create mode 100644 "\346\225\260\345\255\246/\347\211\233\351\241\277\346\263\225/\347\211\233\351\241\277\350\277\255\344\273\243\346\263\225\346\261\202\345\271\263\346\226\271\346\240\271.md"

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index f867cfb..1b35001 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,7 +2,9 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="be5bf74e-ad1c-4197-8a1f-ac93566d8aa7" name="Default" comment="init">
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/自然语言处理/LDA.md" afterPath="$PROJECT_DIR$/自然语言处理/LDA.md" />
+      <change type="NEW" beforePath="" afterPath="$PROJECT_DIR$/数学/牛顿法/牛顿迭代法求平方根.md" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/README.md" afterPath="$PROJECT_DIR$/README.md" />
     </list>
     <ignored path="Reflection_Summary.iws" />
     <ignored path=".idea/workspace.xml" />
@@ -38,8 +40,8 @@
           </provider>
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="354">
-                <caret line="318" column="35" selection-start-line="318" selection-start-column="35" selection-end-line="318" selection-end-column="35" />
+              <first_editor relative-caret-position="195">
+                <caret line="65" column="10" selection-start-line="65" selection-start-column="10" selection-end-line="65" selection-end-column="10" />
                 <folding />
               </first_editor>
               <second_editor />
@@ -47,8 +49,8 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="LDA.md" pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/自然语言处理/LDA.md">
+      <file leaf-file-name="牛顿迭代法求平方根.md" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/数学/牛顿法/牛顿迭代法求平方根.md">
           <provider editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
             <state split_layout="SPLIT">
               <first_editor relative-caret-position="0">
@@ -62,8 +64,8 @@
           </provider>
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="210">
-                <caret line="14" column="0" selection-start-line="14" selection-start-column="0" selection-end-line="14" selection-end-column="0" />
+              <first_editor relative-caret-position="45">
+                <caret line="3" column="73" selection-start-line="3" selection-start-column="73" selection-end-line="3" selection-end-column="73" />
                 <folding />
               </first_editor>
               <second_editor />
@@ -118,8 +120,9 @@
         <option value="$PROJECT_DIR$/自然语言处理/GloVe.md" />
         <option value="$PROJECT_DIR$/自然语言处理/Word2Vec.md" />
         <option value="$PROJECT_DIR$/自然语言处理/CRF.md" />
-        <option value="$PROJECT_DIR$/README.md" />
         <option value="$PROJECT_DIR$/自然语言处理/LDA.md" />
+        <option value="$PROJECT_DIR$/README.md" />
+        <option value="$PROJECT_DIR$/数学/牛顿法/牛顿迭代法求平方根.md" />
       </list>
     </option>
   </component>
@@ -225,7 +228,25 @@
               <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode" />
             </PATH_ELEMENT>
             <PATH_ELEMENT>
-              <option name="myItemId" value="自然语言处理" />
+              <option name="myItemId" value="数学" />
+              <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode" />
+            </PATH_ELEMENT>
+          </PATH>
+          <PATH>
+            <PATH_ELEMENT>
+              <option name="myItemId" value="Reflection_Summary" />
+              <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.ProjectViewProjectNode" />
+            </PATH_ELEMENT>
+            <PATH_ELEMENT>
+              <option name="myItemId" value="Reflection_Summary" />
+              <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode" />
+            </PATH_ELEMENT>
+            <PATH_ELEMENT>
+              <option name="myItemId" value="数学" />
+              <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode" />
+            </PATH_ELEMENT>
+            <PATH_ELEMENT>
+              <option name="myItemId" value="牛顿法" />
               <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode" />
             </PATH_ELEMENT>
           </PATH>
@@ -599,16 +620,6 @@
     <watches-manager />
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/机器学习/逻辑回归/lr.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="400">
-            <caret line="83" column="0" selection-start-line="83" selection-start-column="0" selection-end-line="83" selection-end-column="0" />
-          </first_editor>
-          <second_editor />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/数据预处理/特征提取/数据变换.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
@@ -1194,6 +1205,28 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/自然语言处理/LDA.md">
+      <provider editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
+        <state split_layout="SPLIT">
+          <first_editor relative-caret-position="0">
+            <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+            <folding />
+          </first_editor>
+          <second_editor>
+            <js_state />
+          </second_editor>
+        </state>
+      </provider>
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+        <state split_layout="SPLIT">
+          <first_editor relative-caret-position="360">
+            <caret line="24" column="0" selection-start-line="24" selection-start-column="0" selection-end-line="24" selection-end-column="0" />
+            <folding />
+          </first_editor>
+          <second_editor />
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/README.md">
       <provider editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
         <state split_layout="SPLIT">
@@ -1208,15 +1241,15 @@
       </provider>
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="354">
-            <caret line="318" column="35" selection-start-line="318" selection-start-column="35" selection-end-line="318" selection-end-column="35" />
+          <first_editor relative-caret-position="195">
+            <caret line="65" column="10" selection-start-line="65" selection-start-column="10" selection-end-line="65" selection-end-column="10" />
             <folding />
           </first_editor>
           <second_editor />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/自然语言处理/LDA.md">
+    <entry file="file://$PROJECT_DIR$/数学/牛顿法/牛顿迭代法求平方根.md">
       <provider editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
         <state split_layout="SPLIT">
           <first_editor relative-caret-position="0">
@@ -1230,8 +1263,8 @@
       </provider>
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="210">
-            <caret line="14" column="0" selection-start-line="14" selection-start-column="0" selection-end-line="14" selection-end-column="0" />
+          <first_editor relative-caret-position="45">
+            <caret line="3" column="73" selection-start-line="3" selection-start-column="73" selection-end-line="3" selection-end-column="73" />
             <folding />
           </first_editor>
           <second_editor />
diff --git a/README.md b/README.md
index cebb18c..8c95081 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,8 @@
     - [辗转相除法](数学/最大公约数问题/gcd.md#L1)
     - [其他方法](数学/最大公约数问题/gcd.md#L1)
 - 牛顿法
+    - [迭代公式推导](数学/牛顿法/牛顿迭代法求平方根.md#L1)
+    - [实现它](数学/牛顿法/牛顿迭代法求平方根.md#L1)
 - 拟牛顿法
 - 概率密度分布
     - [均匀分布](数学/概率密度分布/概率密度分布.md#L1)
diff --git "a/\346\225\260\345\255\246/\347\211\233\351\241\277\346\263\225/\347\211\233\351\241\277\350\277\255\344\273\243\346\263\225\346\261\202\345\271\263\346\226\271\346\240\271.md" "b/\346\225\260\345\255\246/\347\211\233\351\241\277\346\263\225/\347\211\233\351\241\277\350\277\255\344\273\243\346\263\225\346\261\202\345\271\263\346\226\271\346\240\271.md"
new file mode 100644
index 0000000..095aaf5
--- /dev/null
+++ "b/\346\225\260\345\255\246/\347\211\233\351\241\277\346\263\225/\347\211\233\351\241\277\350\277\255\344\273\243\346\263\225\346\261\202\345\271\263\346\226\271\346\240\271.md"
@@ -0,0 +1,17 @@
+# 迭代公式推导
+- ![](https://tva1.sinaimg.cn/large/006y8mN6gy1g9bfple4x4j303x00i742.jpg)
+- ![](https://tva1.sinaimg.cn/large/006y8mN6gy1g9bfr2t8flj306l00mmwz.jpg)
+- ![](https://tva1.sinaimg.cn/large/006y8mN6gy1g9bfruh1klj3043015wea.jpg)
+
+# 实现它
+```
+def get_ans(nums,count=10000):
+    ans = nums
+    if not ans:
+        return ans
+    Times = 0
+    while Times<count:
+        ans = 0.5*(ans+nums/ans)
+        Times+=1
+    return ans
+```
\ No newline at end of file