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[Octave-bug-tracker] [bug #51270] isdefinite should return 0 for zero ma
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #51270] isdefinite should return 0 for zero matrices |
Date: |
Tue, 20 Jun 2017 12:54:15 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0 |
Follow-up Comment #4, bug #51270 (project octave):
One solution would be to make this function more like other isXXX functions
and return a boolean rather than -1, 0, +1. In that case, isdefinite would
only mean "positive definite" or "not positive definite".
Otherwise, we need someone with more linear algebra expertise than I have to
provide an algorithm that can cheaply determine whether a matrix is positive
definite.
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