Path: news.mathworks.com!not-for-mail
From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: Re: How do I solve an equation involving determinants?
Date: Mon, 5 Jul 2010 01:29:05 +0000 (UTC)
Organization: The MathWorks, Inc.
Lines: 12
Message-ID: <i0rch1$56i$1@fred.mathworks.com>
References: <i0qiq1$ifm$1@fred.mathworks.com>
Reply-To: <HIDDEN>
NNTP-Posting-Host: webapp-05-blr.mathworks.com
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1278293345 5330 172.30.248.35 (5 Jul 2010 01:29:05 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Mon, 5 Jul 2010 01:29:05 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 1187260
Xref: news.mathworks.com comp.soft-sys.matlab:650355

"Joseph K." <sos@mailinator.com> wrote in message <i0qiq1$ifm$1@fred.mathworks.com>...
> Hi;
> 
> I'm a fairly inexperienced user, so I figure the answer should be simple. I have searched on other forums to find the answer, but was unsuccessful. I need to be able to solve the following equation for the value(s) of x.
> 
> det(SA + x*SAg) = 0
- - - - - - - - - -
  Find the generalized eigenvalues and reverse their sign:

 x = -eig(SA,SAg);

Roger Stafford