Multi dimensional array scaling

Given the matrix A (where A is X by Y by Z matrix. Scale the matrix A such that every element in the kth page is scaled by 5k for k = 1,2,3...Z.

I would have to produce a matrix B such that with element wise multiplication with matrix A it gives me the scaled version.

I have tried messing around with repmat and reshape functions but I can't seem to get it

Answer 1

[Azzi Abdelmalek]

[n,m,p]=size(A)
out=5*reshape(repmat(1:p,n*m,1),size(A)).*A

[mark]

Thank you

Answer 2

[Jan]

What about starting will a simple loop:

s1 = 10;
s2 = 20;
s3 = 30;
A = rand(s1, s2, s3);
B = A;
for k = 1:s3
  B(:, :, k) = B(:, :, k) * 5 * k;
end

Later on I'd prefer bsxfun:

B = bsxfun(@times, A, reshape(5:5:5*s3, 1, 1, s3))