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[Octave-bug-tracker] [bug #34185] LUINC: pivot matrix output is a vector
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #34185] LUINC: pivot matrix output is a vector |
Date: |
Wed, 31 Aug 2011 23:26:43 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20100101 Firefox/6.0 |
URL:
<http://savannah.gnu.org/bugs/?34185>
Summary: LUINC: pivot matrix output is a vector
Project: GNU Octave
Submitted by: None
Submitted on: Wed 31 Aug 2011 11:26:42 PM UTC
Category: Libraries
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Matlab Compatibility
Status: None
Assigned to: None
Originator Name: UMCP
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 3.4.2
Operating System: GNU/Linux
_______________________________________________________
Details:
The pivot matrix outputted by LUINC is a vector even without specifying the
optional 'vector' input argument. It should be a matrix (LU is okay). This
affects Octave 3.2.4 and 3.4.2. Example:
octave-> [ail aiu aip] = luinc(sparse([1 2 ; 7 9]), 1e-3)
...
aip =
2
1
versus:
octave-> [ail aiu aip] = lu([1 2 ; 7 9])
...
aip =
Permutation Matrix
0 1
1 0
_______________________________________________________
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