小白求教
一个5X6阶矩阵,
A=[0,5,0,0,0,0;
0,0,5,5,5,0;
0,0,0,0,0,0;
0,0,0,0,0,0;
0,0,0,0,0,5];
for i=1:5%
for j=1:6%
if A(i,j)>0
M(i)=A(i,j);
end
end
end
想得到M=【5,5,5,5,5】
但是得到M=[5,5,0,0,5],请问哪里出了问题,怎么修改?谢谢

 Accepted Answer

yfgersch
yfgersch on 25 May 2023

0 votes

A=[0,5,0,0,0,0;
0,0,5,5,5,0;
0,0,0,0,0,0;
0,0,0,0,0,0;
0,0,0,0,0,5];
for i=1:5%
for j=1:6%
if A(i,j)>0
M(j*i)=A(i,j);会遍历矩阵A所有元素
end
end
end
M(M==0)=[]
最简单的方式如下
A=[0,5,0,0,0,0;
0,0,5,5,5,0;
0,0,0,0,0,0;
0,0,0,0,0,0;
0,0,0,0,0,5];
M = A(A==5)'

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on 25 May 2023

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on 25 May 2023

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