
Re: Multiplying each colum of my matrix by a constant
Posted:
Jun 12, 2013 10:48 AM


On 6/11/2013 4:59 PM, Wanderson wrote: > Hello there, > > I'm trouble here, I'm sure that the solution isn't too hard to my > problem, but I'm really stucked here and I can't see the light in end > of the tunnel right now. > > I have matrix 3x3 and a vector 1x3 and I want to multiply each column > of my matrix by each element of my vector, for example: > > If my matrix 3x3 is called M and my vector v is a 1x3 dimension: > M(:,1) = M(:,1).*v(1); > M(:,2) = M(:,2).*v(2); > M(:,3) = M(:,3).*v(3); > > Ofc, I want to avoid use 'for loops'. > > Thx.
If I understand you correctly, this should do what you want:
M*diag(v)
Alan Weiss MATLAB mathematical toolbox documentation

