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Jan 1, 2020
beginners
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Jun 28, 2020 - PHP
我发现一些有疑问的地方
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Hacktoberfest 2019
Hacktoberfest is approaching, and so are your chances to get a free tee from Digital Ocean and DEV!
Start contributing to Open-Source by making your first Pull Request at https://www.gitstart.tech
P.S.: To win an official limited edition Hacktoberfest shirt, you must sign up on the Hacktoberfest site: https://hacktoberfest.digitalocean.com and make **four pull requests (PRs) on
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Add more templates
Add a template to build a simple portfolio using HTML, CSS and JavaScript
Create a folder YOUR_NAME inside the template folder and add your files there.
PS - This issue is opened mainly for beginners. Fork this repo, make changes and raise the PR.
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31页,第一行


应改成
35 页, 正定矩阵的定义 (公式 2-15)
标准正定矩阵的定义,应该没有 “对称矩阵” 这一条件吧? 只是您在本书大多讨论的是“对称”正定矩阵,所以加上了 “对称” 这一条件?
38页, 奇异值分解定义(公式 2-16)
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