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[Octave-bug-tracker] [bug #57185] eigs does not consistently order eigen
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From: |
Marco Caliari |
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Subject: |
[Octave-bug-tracker] [bug #57185] eigs does not consistently order eigenvalues |
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Date: |
Wed, 4 Dec 2019 03:31:53 -0500 (EST) |
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User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0 |
Follow-up Comment #17, bug #57185 (project octave):
As said, ARPACK does not guarantee any particular order. In eigs-base.cc there
are some attempts to sort the eigenvalues. But they were workarounds in order
to reproduce the old matlab behavior. Now, the eigenvalues in matlab are
sorted (and Matlab does not use ARPACK anymore). I think we should remove from
eigs-base.cc those old attempts and sort the results in eigs.m.
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