Re: Eigenvalues, any suggestions?
- To: mathgroup at smc.vnet.net
- Subject: [mg43743] Re: Eigenvalues, any suggestions?
- From: Roland Franzius <roland.franzius at uos.de>
- Date: Thu, 2 Oct 2003 02:52:26 -0400 (EDT)
- Organization: Universitaet Hannover
- References: <bkp02c$cf6$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
AC wrote:
> In[1]:=
> data={XX\[Rule]100.,YY\[Rule]100.,ZZ\[Rule]100.,
> XY\[Rule]0.,XZ\[Rule]0.,YZ\[Rule]0.};
>
> In[2]:=
> Eigenvalues[{{XX,XY,XZ},{XY,YY,YZ},{XZ,YZ,ZZ}}]/.data
try
Eigenvalues[{{XX,XY,XZ},{XY,YY,YZ},{XZ,YZ,ZZ}}/.data ]
Mathematica has severe problems to distinguish the three identical roots
in the general algebraic root expression of
Eigenvalues[{{XX,XY,XZ},{XY,YY,YZ},{XZ,YZ,ZZ}}]
without data
--
Roland Franzius