bugGNU Octave - Bugs: bug #48518, No warning for singular diagonal...


bug #48518: No warning for singular diagonal matrices

Submitted by:  Marco Caliari <caliari>
Submitted on:  Fri 15 Jul 2016 07:06:04 AM UTC  
Category: Octave FunctionSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Missed Error or Warning
Status: Patch SubmittedAssigned to: None
Originator Name: Open/Closed: Open
Release: devOperating System: GNU/Linux

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Wed 28 Mar 2018 02:47:15 PM UTC, comment #1:

I attach my attempt to solve the problem. It seems that it is not possible to mark a diagonal matrix as singular. At least, with my changeset, a warning is given.

(file #43705)

Marco Caliari <caliari>
Project Member
Fri 15 Jul 2016 07:06:04 AM UTC, original submission:

If you run

you get a warning about the singularity of N, and matrix_type(N) is Singular. But with

no warning and matrix_type(M) is Unknown.

Marco Caliari <caliari>
Project Member


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):

Attached Files
file #43705:  sing-diag.diff added by caliari (7KiB - application/x-tex)


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -unavailable- added by jwe (Updated the item)
  • -unavailable- added by caliari (Submitted the item)

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    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 28 Mar 2018 02:47:58 PM UTCcaliariItem GroupInaccurate Result=>Missed Error or Warning
      StatusNone=>Patch Submitted
    Wed 28 Mar 2018 02:47:15 PM UTCcaliariAttached File-=>Added sing-diag.diff, #43705
    Fri 29 Jul 2016 08:16:05 PM UTCjweCategoryInterpreter=>Octave Function
    Fri 29 Jul 2016 08:15:35 PM UTCjweCategoryNone=>Interpreter

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