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[Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results -
From: |
Ceral Paquet |
Subject: |
[Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug? |
Date: |
Sat, 12 Jul 2014 17:44:44 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20140618 Firefox/24.0 PaleMoon/24.6.2 |
Follow-up Comment #1, bug #42743 (project octave):
Thinking about it, I guess it's mainly weird because the results differ from
run to run - albeit only in the 7th or 8th significant figure. Whereas in
double precision, the results are identical every run even with 30+ digits
displayed.
For quick reference, the Octave file is as follows:
% ----------------------- %
function weird_bug()
load data
X = pinv(A)*B;
num2str(norm(X,'fro'),32)
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- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/12
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?,
Ceral Paquet <=
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Rik, 2014/07/13
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/14
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Rik, 2014/07/14
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/15
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/15
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/26
- [Octave-bug-tracker] [bug #42743] Inconsistent linear algebra results - openblas bug?, Ceral Paquet, 2014/07/26