矩阵
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 21:50:28
矩阵
矩阵
矩阵
(A,E) =
1 2 0 0 1 0 0 0
0 1 0 2 0 1 0 0
0 0 1 0 0 0 1 0
0 0 2 1 0 0 0 1
r4-2r3
1 2 0 0 1 0 0 0
0 1 0 2 0 1 0 0
0 0 1 0 0 0 1 0
0 0 0 1 0 0 -2 1
r2-2r4
1 2 0 0 1 0 0 0
0 1 0 0 0 1 4 -2
0 0 1 0 0 0 1 0
0 0 0 1 0 0 -2 1
r1-2r2
1 0 0 0 1 -2 -8 4
0 1 0 0 0 1 4 -2
0 0 1 0 0 0 1 0
0 0 0 1 0 0 -2 1
A^-1 =
1 -2 -8 4
0 1 4 -2
0 0 1 0
0 0 -2 1