摘要: 一、二阶矩阵的逆矩阵 $A^{-1}$的公式:$\left[\begin{array}{ll}{a} & {b} \\ {c} & {d}\end{array}\right]^{-1}=\frac{1}{a d-b c}\left[\begin{array}{rr}{d} & {-b} \\ {-c 阅读全文
posted @ 2020-02-12 16:58 1直在路上1 阅读(2007) 评论(0) 推荐(0) 编辑