How to construct this matrix without using two for loops?

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Mohit Kumar on 13 May 2021
Answered: Mohit Kumar on 13 May 2021
Hi, I'm trying to construct a matrix in the following manner:
sz=10;
V=rand(sz,sz);
X=rand(sz,sz);
for iter1=1:sz
for iter2=1:sz
A(iter1,iter2) = sum((V(:,iter1)*V(:,iter2)').*X,[1 2]);
end
end
Is there a way to do this without for-loops? I'm sure there must be a way that I haven't been able to think of!
2 CommentsShow NoneHide None
DGM on 13 May 2021
Edited: DGM on 13 May 2021
What are i and j? By default, both i and j are sqrt(-1), which isn't a valid index. Are they supposed to be iter1 and iter2, or are they defined elsewhere and constant within the scope of the loops?
Mohit Kumar on 13 May 2021
My bad, i mean iter1 and iter2. Edited the question. Thanks.

Mohit Kumar on 13 May 2021
I was able to figure out the answer to this. The formulation can be written as
A = V' * X * V;

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