This is a note on matrix derivatives and described my own experience in detail. The expected readers are machine learning students who wants to use matrix derivatives as a tool, not math students who seek a rigid proof.

这是一份关于矩阵求导的笔记，主要介绍了个人的使用经验。 本文期望的读者是打算将矩阵求导作为工具使用的学生，而非追寻严谨证明的数学学生。