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Re: eigenvectors is taking lot of time

• To: mathgroup at smc.vnet.net
• Subject: [mg82599] Re: eigenvectors is taking lot of time
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Fri, 26 Oct 2007 05:13:40 -0400 (EDT)
• Organization: Uni Leipzig
• References: <ffppmk$l0d$1@smc.vnet.net>
• Reply-to: kuska at informatik.uni-leipzig.de

Hi,

a numerical matrix or a symbolic one ?
For a numeric matrix 30 x 30 is simple for
a symbolic one nearly impossible.

Regards
   Jens


Regards
   Jens
vickyisai at gmail.com wrote:
> Hi all
> 
> I am trying to calculate eigenvectors of a 30 X 30 matrix. and
> mathematica is still just "running".
> Is the any way to get the eigenvectors quickly.
> 
> After 45 mins ,it was still running and displayed a message "limit of
> "some number here(4096) exceeded"
> 
> i wanted eigen values and vectors both ..so i tried eigensystem....but
> tat also took long, so i switched to individualfunctions of
> eigenvalues and eigenvectors.
> 
> I aborted it...shud i execute it again and wait for longer?
> I use Mathematica 5.2 and got a AMD Turion 2.2 Gz, does tat matter for
> a  30 x 30 matrix??
> 
> Thanks
> 
> Vick Al Aisa
> 
>