matlab截取矩阵的一块
时间: 2023-09-30 20:08:22 浏览: 86
可以使用MATLAB中的“:”运算符来截取矩阵的一块。
例如,假设有一个3x3的矩阵A:
A = [1 2 3; 4 5 6; 7 8 9];
要截取矩阵A的第2行到第3行,第1列到第2列的部分,可以使用以下代码:
B = A(2:3, 1:2);
这将创建一个2x2的矩阵B,其值为:
B = [4 5; 7 8];
其中,2:3表示从第2行到第3行,1:2表示从第1列到第2列。
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