forcing the final column in a matrix to be zero

Question

A Poyser 2023-3-31

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1938539-forcing-the-final-column-in-a-matrix-to-be-zero

评论： A Poyser 2023-3-31

I want to make the final column to go to zero once I go past a certain flag number

k = 10
a = zeros(1:k)
if b < 1
    a = (end 0)
end

I think it looks something like this but I know it isn't exactly right

please help

Alex

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Answer 1

VBBV 2023-3-31

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1938539-forcing-the-final-column-in-a-matrix-to-be-zero#answer_1205564

编辑：VBBV 2023-3-31

在 MATLAB Online 中打开

k = 10
k = 10
a = ones(3,k)
a = 3×10
     1     1     1     1     1     1     1     1     1     1
     1     1     1     1     1     1     1     1     1     1
     1     1     1     1     1     1     1     1     1     1
b = -1;
if b < 1
    a(:,end) = 0;
end
a
a = 3×10
     1     1     1     1     1     1     1     1     1     0
     1     1     1     1     1     1     1     1     1     0
     1     1     1     1     1     1     1     1     1     0