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[Octave-bug-tracker] [bug #60924] DNAUPD did not find any eigenvalues to


From: Rik
Subject: [Octave-bug-tracker] [bug #60924] DNAUPD did not find any eigenvalues to sufficient accuracy
Date: Fri, 16 Jul 2021 17:39:03 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36

Follow-up Comment #4, bug #60924 (project octave):

Another possibility is that there is something odd with selecting just a
single eigenvalue.  If I adjust "num_eigs" from 1 to a number > 1 then the
code works, but reports


warning: eigs: Only 1 of the 6 requested eigenvalues converged


All of the other values are NaN.

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  <https://savannah.gnu.org/bugs/?60924>

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