行列式展开定理证明的一点注记

Note on the Proof of Determinantal Expansion Theorem

针对行列式计算中常用的按行(列)展开定理,对部分线性代数教材所给证明提出一点质疑,并给出两种不同的证明方法。

For the proof of determinantal expansion theorem, the paper gives a note and proposes two different proof methods.