bugGNU Octave - Bugs: bug #34179, [L U P Q] = luinc(A,1e-3) returns...

 
 

bug #34179: [L U P Q] = luinc(A,1e-3) returns P and Q as vectors without 'vector' command

Submitted by:  Mikael <mandolin>
Submitted on:  Wed 31 Aug 2011 11:18:06 AM UTC  
 
Category: GUISeverity: 3 - Normal
Priority: 5 - NormalItem Group: Incorrect Result
Status: FixedAssigned to: None
Originator Name: Open/Closed: Closed
Release: 3.4.2Operating System: GNU/Linux

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Wed 31 Aug 2011 02:45:32 PM UTC, comment #1:

This seems to be another symptom of the same permutation matrix bug fixed in this changeset:

http://hg.savannah.gnu.org/hgweb/octave/rev/b646413c3d0e

I'm therefore closing this bug report, as it's not present anymore after that cset.

Jordi GutiƩrrez Hermoso <jordigh>
Project Administrator
Wed 31 Aug 2011 11:18:06 AM UTC, original submission:

When using luinc(A,1e-3) the P and Q are supposed to be matrix form as when using lu(A).

This is not the case, I get P and Q as vectors instead which should be the case if I use luinc(A,1e-3,'vector')

I need both P and Q because just L and U will not give the correct result when used.

Example matrices where this happens can be seen in file attached.

Mikael <mandolin>

 

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Attach File(s):
   
   
Comment:
   

Attached Files
file #23912:  parameters.zip added by mandolin (1MiB - application/x-zip-compressed)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -unavailable- added by jordigh (Posted a comment)
  • -unavailable- added by mandolin (Submitted the item)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 31 Aug 2011 02:45:32 PM UTCjordighStatusNone=>Fixed
      Open/ClosedOpen=>Closed
    Wed 31 Aug 2011 11:18:06 AM UTCmandolinAttached File-=>Added parameters.zip, #23912

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