Subtraction of a constant from a matrix column

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Filip Davidovic
Filip Davidovic 2017-10-5
回答： SUJEET KUMAR 2023-9-15
Hi all, I'm trying to subtract a constant from every element in a matrix column, as the title suggests. The code I have is the following, however it does not work:
ver(:,1) = ver(:,1)-X;
Example. If we take ver = [1 2 3 ; 4 5 6], and X=3. So what I want to get by this subtraction is ver = [-2 2 3 ; 1 5 6].
Any help is appreciated. Thanks in advance! Cheers!

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回答（2 个）

KL
KL 2017-10-5
编辑：KL 2017-10-5
It works for me
>> ver = [1 2 3 ; 4 5 6]
X = 3
ver =
1 2 3
4 5 6
X =
3
>> ver(:,1) = ver(:,1)-X
ver =
-2 2 3
1 5 6
What do you mean by it doesn't work?
SUJEET KUMAR
SUJEET KUMAR 2023-9-15
how to sum the all element in matric

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