Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


Matt J
Posts:
4,996
Registered:
11/28/09


Re: Matrix dimensions must agree
Posted:
Oct 20, 2011 2:30 PM


"Halley" wrote in message <j7ph9f$gkc$1@newscl01ah.mathworks.com>... > > I had actually been toying with that solution as I waited for responses when I ran across a new problem. With each iteration my values are not changing. As I mentioned, x(i) should become xnorm(i) and rho(i) should equal rho(i+1). I suspect that this is the problem, that somehow the order of the operations regarding rho is making it so that the relative error doesn't change. I have tried taking rho(i) out of the loop and calculating rho(1) but that did not seem to help either. I've been struggling with these problems for a few days so the help is really appreciated. ================
For these issues, it would be recommendable to get familiar with setting breakpoints and other MATLAB debugging tools, as the others have recommended.
In case it's useful, I gave someone a small demo of some of the debugging tools here:
http://www.mathworks.com/matlabcentral/newsreader/view_thread/311335#848305



