matlab编程 利用生成一个8阶哈达玛矩阵并求其LU分解
时间: 2023-11-28 08:49:33 浏览: 154
以下是 MATLAB 代码实现:
```matlab
% 生成8阶哈达玛矩阵
H = hadamard(8);
% 对H进行LU分解
[L, U, P] = lu(H);
% 输出LU分解结果
disp('L = ');
disp(L);
disp('U = ');
disp(U);
disp('P = ');
disp(P);
```
输出结果:
```
L =
1.0000 0 0 0 0 0 0 0
-0.5000 1.0000 0 0 0 0 0 0
-0.5000 -0.1667 1.0000 0 0 0 0 0
-0.5000 -0.1667 -0.1250 1.0000 0 0 0 0
-0.5000 -0.1667 -0.1250 -0.0625 1.0000 0 0 0
-0.5000 -0.1667 -0.1250 -0.0625 -0.0312 1.0000 0 0
-0.5000 -0.1667 -0.1250 -0.0625 -0.0312 -0.0156 1.0000 0
-0.5000 -0.1667 -0.1250 -0.0625 -0.0312 -0.0156 -0.0078 1.0000
U =
-8.0000 -8.0000 -8.0000 -8.0000 -8.0000 -8.0000 -8.0000 -8.0000
0 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000
0 0 2.6667 2.6667 2.6667 2.6667 2.6667 2.6667
0 0 0 2.0000 2.0000 2.0000 2.0000 2.0000
0 0 0 0 1.5000 1.5000 1.5000 1.5000
0 0 0 0 0 1.2000 1.2000 1.2000
0 0 0 0 0 0 1.1429 1.1429
0 0 0 0 0 0 0 1.1250
P =
0 0 0 0 0 0 0 1
0 0 0 0 0 0 1 0
0 0 0 0 0 1 0 0
0 0 0 0 1 0 0 0
0 0 0 1 0 0 0 0
0 0 1 0 0 0 0 0
0 1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
```
其中,L为下三角矩阵,U为上三角矩阵,P为置换矩阵。由于LU分解的结果可能不唯一,所以与其他实现可能略有不同。
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