Vector Matrix multiplication (Row wise)

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Hi, I need to multiply each row of very large matrix with a row of corresponding vector. I don't really want to use for loop for that, i.e.,
L=rand(N,N); V=rand(N,1);
for i=1:1:N
is it possible to do this in vectorized way?
Thank you

Accepted Answer

Thorsten on 16 Sep 2015
L = L.*repmat(V, [1 N]);

More Answers (3)

Vladimir Kazei
Vladimir Kazei on 9 Oct 2017
Edited: Vladimir Kazei on 9 Oct 2017
L = L .* V;

seif seif
seif seif on 26 Jan 2018
Edited: seif seif on 26 Jan 2018
I'd suggest a faster version than the above methods:
L = L .* v(:, ones(N,1));
  1 Comment
Noah Tang
Noah Tang on 28 Oct 2019
Could you explain that why does this indexing trick work?

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James Tursa
James Tursa on 16 Sep 2015
L = bsxfun(@times,L,V);


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