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eignenvalue for nonsymmetric matrix

From: Marino Kekana
Subject: eignenvalue for nonsymmetric matrix
Date: Thu, 7 Apr 2005 03:14:20 -0500

I have installed gnu octave version 2.1.67 together with octave-
forge-2004.09.09 on fedora core 3. I want to solve the eigenproblem of
a non-symmetric full matrix. Octave gives me the following error:
error: dgeev failed to converge. The sample problem is below.

octave:1> stiff = [1,2,3,4;5,6,7,8;9,10,11,12;13,14,15,16]
stiff =

   1   2   3   4
   5   6   7   8
   9  10  11  12
  13  14  15  16

octave:2> eig(stiff)
error: dgeev failed to converge

Regards, Marino.

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