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Topic: Matrix dimensions must agree
Replies: 7   Last Post: Oct 20, 2011 2:30 PM

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Matt J

Posts: 4,996
Registered: 11/28/09
Re: Matrix dimensions must agree
Posted: Oct 20, 2011 2:30 PM
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"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.

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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



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