modify parted matrix element

Hi i have part of specific matrix was made partition , then how we can modify all of element of this part by add or multiply or any mathematical operation??

回答(1 个)

x =magic(4)
x =
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
x(1:2,1:2)=x(1:2,1:2)-x(1:2,1:2)
x =
0 0 3 13
0 0 10 8
9 7 6 12
4 14 15 1

此问题已关闭。

提问:

2012-2-15

关闭:

2021-8-20

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