MATLAB: Sum of a vector with non zero elements of matrix without using loop

Question

I have a matrix T and vector M say

T=[0   0   1   0   0   0   1   0   0   0
   0   1   0   0   0   1   0   0   1   1
   0   1   0   0   0   0   0   0   1   1
   0   0   1   0   1   0   1   1   1   0
   0   0   1   1   1   1   0   1   1   0]
M=[0.1    0.2    0.2    0.4    0.2    0.3    0.1    0.1    0.1    0.2]

I want to add M in each row of T with only non zero element. For example, the result of 1st row should be

0 0 1.2 0 0 0 1.1 0 0 0

but is this possible without applying for loop?

Answer 1

You can do:

    R = repmat(M, 5, 1);
    Q = (T+R).*T;