In particular, on the exam, you will need to know how to invert a matrix by hand.

尤其是，在考试里，你们要知道怎么手算逆矩阵。

youdao

In particular, on the exam, you will need to know how to invert a matrix by hand.

尤其是，在考试里，你们要知道怎么手算逆矩阵。

youdao