Ticket #6932 (closed defect: fixed)

Opened 4 years ago

Last modified 3 years ago

jordan_form with transformation=true fails on a 1x1 matrix

Reported by: syazdani Owned by: tbd
Priority: major Milestone: sage-4.3.4
Component: linear algebra Keywords: jordan_form
Cc: Work issues:
Report Upstream: N/A Reviewers:
Authors: Merged in:
Dependencies: Stopgaps:

Description

The following code fails: 

M=Matrix(1,1,[1])
M.jordan_form(transformation=True)

Change History

comment:1 Changed 4 years ago by AlexGhitza

  • Component changed from algebra to linear algebra
  • Milestone set to sage-4.3

comment:2 Changed 3 years ago by spancratz

  • Status changed from new to needs_review
  • Report Upstream set to N/A

This is fixed by the patch at ticket #6942. Once that ticket receives a positive review, this ticket can be closed.

comment:3 Changed 3 years ago by zimmerma

  • Status changed from needs_review to positive_review

I checked with sage-4.3.3, and we indeed get the correct rank (7) for #6942, thus I guess we can indeed close that ticket: 

sage: M=Matrix(1,1,[1])
sage: M.jordan_form(transformation=True)
([1], [1])

comment:4 Changed 3 years ago by mvngu

  • Status changed from positive_review to closed
  • Resolution set to fixed
  • Summary changed from jordan_form with transformation=true fails on a 1x1 matrix. to jordan_form with transformation=true fails on a 1x1 matrix

Close as fixed by #6942.

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