Fast computation of 2D summation

1 view (last 30 days)
Xin
Xin on 5 Apr 2018
Edited: James Tursa on 5 Apr 2018
Hello. I have two matrix, A and B and I want to compute the following 2D summation to get a 1D array T. Is it possible to use, e.g. convolution algorithm or other ones to acquire the solution? I try to use sum and it is a bit slow when A and B are large. Thanks a lot!

Sign in to answer this question.

Accepted Answer

James Tursa
James Tursa on 5 Apr 2018
Edited: James Tursa on 5 Apr 2018
T = reshape(B,size(B,1),[]) * A(:);

More Answers (0)

Categories

Find more on Mathematics in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!