所以我稍微讲一下矩阵，这些东西都是这节课上立马要用到的。

So let me just introduce you to a little bit about matrices just enough for what we will need later on in this class.

youdao

所以我稍微讲一下矩阵，这些东西都是这节课上立马要用到的。

So let me just introduce you to a little bit about matrices just enough for what we will need later on in this class.

youdao