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MathGroup Archive 2004

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Re: finding eigenvalues

  • To: mathgroup at
  • Subject: [mg45497] Re: finding eigenvalues
  • From: "Fred Klingener" <flush at>
  • Date: Sat, 10 Jan 2004 00:00:46 -0500 (EST)
  • References: <btncsm$22$>
  • Sender: owner-wri-mathgroup at

"Jeremy Watts" <jeremy.watts70 at> wrote in message
news:btncsm$22$1 at
> I have been wondering on whether there exist methods to find the
> of a matrix other than solving the characteristic polynomial equation.  Do
> there exist elementary row operation methods that will find the real
> eigenvalues of a matrix?
> I have been using a site that will find the eigenvalues of a matrix and
> wondering how it does it because I'm pretty sure its not doing it by
> the characteristic equation.

It might not make you an expert, but one of the places to start is the
Eigensystems chapter in "Numerical Recipes ... ":

Fred Klingener

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