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[Octave-bug-tracker] [bug #42587] chol incorrect claim about positive de
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #42587] chol incorrect claim about positive definite on sparse indefinite matrix |
Date: |
Thu, 19 Jun 2014 17:05:40 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0 |
Update of bug #42587 (project octave):
Status: None => Fixed
Open/Closed: Open => Closed
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Follow-up Comment #4:
I fixed this on the stable branch in this changeset
(http://hg.savannah.gnu.org/hgweb/octave/rev/161b11e7da2d). It will be a part
of the 3.8.2 bug fix release.
Incidentally, should the 3 output form work for full matrices, or does it only
work with sparse?
[R,p,Z] = chol (full (Q))
error: Invalid call to chol. Correct usage is:
-- Loadable Function: R = chol (A)
-- Loadable Function: [R, P] = chol (A)
-- Loadable Function: [R, P, Q] = chol (S)
-- Loadable Function: [R, P, Q] = chol (S, "vector")
-- Loadable Function: [L, ...] = chol (..., "lower")
-- Loadable Function: [L, ...] = chol (..., "upper")
If you can verify that Matlab handles this for full matrices then maybe a
second bug report should be filed about that.
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