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From: sumnaray@gmail.com
Newsgroups: comp.soft-sys.matlab
Subject: Re: Solving Equation
Date: Fri, 23 Nov 2007 00:02:18 -0800 (PST)
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On Nov 23, 2:58 am, "Bruno Luong" <brunolu...@yahoo.com> wrote:
> sumna...@gmail.com wrote in message
>
> <d2ea35f2-b295-4b24-a58f-4aa7bf335...@s8g2000prg.googlegroups.com>...
>
> > Hi,
>
> > How do I solve for X in equation
>
> > X - MXM' = Q
>
> > where M, X, and Q are all (n,n) matrix.
>
> > Thanks.
>
> See thread on similar problem here (Q was identity)
>
> http://www.mathworks.com/matlabcentral/newsreader/view_thread/159258
>
> Bruno

Actually, I did try that, but I got
   NaN   NaN   NaN     0
   NaN   NaN   NaN     0
   NaN   NaN   -Inf       0
   NaN   NaN     0       1

I did not know what to do after that. :-S