My code works and notes to the online course "Neural Networks and Deep Learning" by Michael Nielsen.
English version of the course: http://neuralnetworksanddeeplearning.com/index.html
中文版：https://www.gitbook.com/book/hit-scir/neural-networks-and-deep-learning-zh_cn
*.md格式的笔记需要使用支持 MathJax 的 markdown 查看器打开。Github上直接打开不支持公式渲染。