[Octave-bug-tracker] [bug #52285] inv(0) gives 0 (instead of inf)

[Colin Macdonald]

URL:
  <http://savannah.gnu.org/bugs/?52285>

                 Summary: inv(0) gives 0 (instead of inf)
                 Project: GNU Octave
            Submitted by: cbm
            Submitted on: Thu 26 Oct 2017 08:20:24 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:


octave:1> inv(0)
warning: matrix singular to machine precision
ans = 0


That should be "Inf" (e.g., in 4.2.1).

I think it changed sometime in the last few months but I have not bisected it
yet to be sure.




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