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[Octave-bug-tracker] [bug #39573] Wrong result from eigs in generalized
From: |
Marco Caliari |
Subject: |
[Octave-bug-tracker] [bug #39573] Wrong result from eigs in generalized shift-invert mode |
Date: |
Tue, 17 Sep 2013 07:59:48 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20100101 Firefox/13.0 |
Follow-up Comment #3, bug #39573 (project octave):
You are right, documentation requires positive semi-definite matrices but
ARPACK performs quite badly.
For instance, matlab gives "error -9999 in dsaupd" with your example and the
same would give Octave with the modification you suggested.
Marco
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