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[Octave-bug-tracker] [bug #53719] eigs delivers wrong result in case of

From: Marco Caliari
Subject: [Octave-bug-tracker] [bug #53719] eigs delivers wrong result in case of complex valued general eigenvalue problem
Date: Thu, 26 Apr 2018 02:40:22 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0

Follow-up Comment #10, bug #53719 (project octave):

@Dan: sorry for the zip file, which misses debug.h and contains subfolders. I
uploaded a new one. I did not notice the problem with the number of converged
ritz values: so, there is probably something in my fortran file or in ARPACK
In this example sigma is zero. So inv(A-sigma M) is inv(A) which is a diagonal
matrix. Therefore, I divided x by the diagonal of A.

(file #44033)

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