Machine Learning
这是机器学习笔记，跟随吴恩达教授。未完结，持续更新。
Q&A
This post contains some interesting questions, and I will give my answers, which may not be 100% accurate.
Circuit Principles
This is a note for "Circuit Principles" by Professor Yu Xinjie of Tsinghua University.
Git Commands
This is a basic Git tutorial.
Hexo Commands
This is a list of common Hexo commands.
Backgound
just some pictures