The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

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

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Matt J

Posts: 4,997
Registered: 11/28/09
Re: Matrix dimensions must agree
Posted: Oct 20, 2011 2:30 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Halley" wrote in message <j7ph9f$gkc$>...
> 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:

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.