MATLAB: Multiply element of a row vector (A) by corresponding row of matrix (B) and sum

MATLAB

Hi
I am currently looking for an assistance on the way to perform such calculation:
A=[0 1 2 3];B=[1 2;3 4;5 6;7 8];
        0*1 + 0*2
     C= 1*3 + 1*4
        2*5 + 2*6
        3*7 + 3*8
   ==> C=[0;7;22;45]
I had a look at
bsxfun(@times,,)
but it can't be useful here (unfortunately).
Best,

Best Answer

This works:
C = sum(bsxfun(@times, A', B),2);
To get bsxfun to work here, you have to transpose ‘A’ so that the two arguments have a dimension in common. Then sum across the columns (dimension 2).
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