Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

这里是不是计算有误啊,不太理解你书本上的那一段。 #37

Open
linround opened this issue Aug 4, 2023 · 4 comments

Comments

@linround
Copy link

linround commented Aug 4, 2023

这个投影计算的方式有问题吧;

这个是书本上的内容

image

这个是我认为修改后的内容

微信图片_20230804085116

@zhongxiang117
Copy link

他用的是通用的 向量投影 公式:https://en.wikipedia.org/wiki/Vector_projection,你这样反而更麻烦,需要借助 “额外” 的 cos(theta)

@linround
Copy link
Author

他用的是通用的 向量投影 公式:https://en.wikipedia.org/wiki/Vector_projection,你这样反而更麻烦,需要借助 “额外” 的 cos(theta)

谢了,明白了

@JivinDotL
Copy link

你这个是那本书里面的?

@whxcode
Copy link

whxcode commented Sep 26, 2023

image
我在线性代数书中看见的.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

4 participants