Taking each column and element wise multiply to a matrix

I'm wondering if there is a faster way to do this operation. Here is an example scenario:
A = randn(3, 26);
B = randn(3, 128);
Now I want to take each column of A and do element-wise multiplication with B. I know that I can use a for loop for example:
for i = 1:26
bsxfun(@times, a(:, 1), x)
end
My question: is there any way to do this without a for loop? Thanks.

2 Comments

hi! did you find a solution? I'm having the same problem.
Perhaps kron does what you want.

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Answers (1)

out = bsxfun(@times,reshape(A,size(A,1),1,[]),B);

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Asked:

on 7 Mar 2018

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on 23 Nov 2018

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