Multiply one dimension of a 3D Matrix by a vector

I wish to element multiply the third dimension of Matrix A by vector B by for all xy points. The following operation takes 329 seconds.

Is there an operation that avoids the for loops?

My Code:

Matrix A has dimensions A(2048,200,513)

Vector B has dimension(513)

C = zeros(numx,numy,numz);

for j = 1:numy

for i = 1:numx

Az = squeeze(A(i,j,:));

C(i,j,:) = squeeze(B.*Az);

end

end

Answer 1

[James Tursa]

C = A .* reshape(B,1,1,[]);

For earlier versions of MATLAB that do not have implicit expansion it would be this:

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

[James Brown]

Excellent. Thank you.