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[Octave-bug-tracker] [bug #60786] mpower: negative scalar to power of ma
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #60786] mpower: negative scalar to power of matrix containing non-integers returns nan |
Date: |
Sat, 3 Jul 2021 15:01:53 -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 #20, bug #60786 (project octave):
Testing code from comment #17 produces different results on my machine.
Instead of jwe's results of
1
(nan,nan)
(-nan,-nan)
(nan,nan)
I get
1
(1,0)
(-nan,-nan)
(1,0)
This is with a C++ stdlib from Kubuntu 18.04.
ii libstdc++6:amd64 8.4.0-1ubuntu1~18.04
amd64 GNU Standard C++ Library v3
The fact that results seem to change with changing library versions is not a
good sign, and points to implementing our own wrappers to get the results we
want.
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- [Octave-bug-tracker] [bug #60786] mpower: negative scalar to power of matrix containing non-integers returns nan,
Rik <=