Date: Feb 12, 2013 11:33 AM
Author: Curious
Subject: Re: Matrix Dimensions must agree.
"Erik" wrote in message <kfdpbk$kdp$1@newscl01ah.mathworks.com>...

> I have this:

> t= [0:100];

> L = 100;

> k = [.1 .3 .7];

> C = 25;

>

> i want to multiply

> -k .* t

>

> but i get an error message saying matrix dimensions must agree.

> I thought the . before the * would get rid of that error but it doesn't. what is going on???

Well, k has 3 elements and t has 101.

How do you expect the results to look like by multiplying 3 things by 101 things?

Do you want an array of 3X101 or 101X3 perhaps?

Maybe something like:

-k*t'