Matrix multiplication using MATLAB -


if have following matrix:

a=[10   1   0   1   1    50   1   0   0   0    60   0   0   0   1]

how can multiply first column in matrix [10 50 60]' vector multiplication rest of matrix , following:

b=[10  10  0  10  10    50  50  0   0   0    60  0   0   0   60]

if want frame matrix multiplication, like:

b = [a(:,1), diag(a(:,1))*a(:,2:end)]

should work (it's been while since i've done matlab, though).


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