matlab矩阵元素从大到小
时间: 2023-09-14 14:06:24 浏览: 135
你可以使用MATLAB中的sort函数来按降序对矩阵元素进行排序。默认情况下,sort函数按升序排序,但是可以通过指定第二个输入参数来将其改为降序排序。下面是一个例子:
```matlab
A = [3 2 1; 6 5 4; 9 8 7];
sorted_A = sort(A(:), 'descend');
B = reshape(sorted_A, size(A))
```
在这个例子中,我们首先将矩阵A转换为一个向量,然后使用sort函数将其降序排序。最后,我们使用reshape函数将向量转换回原始的矩阵形状。
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