matrix addition

All, I've got a 3-d matrix, sum_total(:,:,i) "i" is in a loop, and can be anything from 20 to 100, therefore making the length unknown until after the loop is finished.

Does anyone know how I might add all the matrices of the variable together to make a single matrix? I tried "cumsum" with no luck.

Jim

Answer 1

[Fangjun Jiang]

A=rand(3,4,5);
B=sum(A,3); % sum at the third dimension.