What does this command line mean? (matrix A =[A t])

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zara
zara 2023-5-24
回答： the cyclist 2023-5-24
Hi. I was reading a MATLAB code (a numerical simulation), then I found this line that I can't understand) >>
%Let t be a scaler taken the value 5
t=5
A =[A t]
%the result on matlab was "Error using horzcat"
Could someone explain it to me please?

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回答（2 个）

Image Analyst
Image Analyst 2023-5-24
It means, if A is a row vector, that the value of t is to be stitched onto the right side of row vector A to form a new row vector A.
Or it could mean, if A is a scalar (single number) that the value of t (which is 5) is to be stitched onto the value of A to form a new A that is a 2-element row vector.
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the cyclist
the cyclist 2023-5-24
Square brackets can be used to concatenate arrays.

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