利用矩阵的初等变换求一类矩阵的乘积

Solving a Kind of Multiplication of Matrix by Elementary Operation

利用矩阵的初等变换,讨论了形如A-1B或BA-1的计算问题,并给出了较为简便的计算方法。

Using elementary operation of matrix,the calculation problem like A-1B or BA-1is discussed and a simple calculating method is also given in this paper.