UC知道求下列矩阵的逆矩阵
来源：百度知道 编辑：UC知道 时间：2024/06/01 07:17:17
1 -1 0 0 0
-1 2 -1 0 0
0 -1 2 -1 0
0 0 -1 2 -1
0 0 0 -1 1
-1 2 -1 0 0
0 -1 2 -1 0
0 0 -1 2 -1
0 0 0 -1 1
行列式为零 ，该矩阵不可逆
>> A
A =
1 -1 0 0 0
-1 2 -1 0 0
0 -1 2 -1 0
0 0 -1 2 -1
0 0 0 -1 1
>> inv(A)
Warning: Matrix is singular to working precision.
ans =
Inf Inf Inf Inf Inf
Inf Inf Inf Inf Inf
Inf Inf Inf Inf Inf
Inf Inf Inf Inf Inf
Inf Inf Inf Inf Inf
逆矩阵存在？