[Octave-bug-tracker] [bug #57230] [octave forge] (symbolic) Test failure in @sym/solve

[Orion Poplawski]

URL:
  <https://savannah.gnu.org/bugs/?57230>

                 Summary: [octave forge] (symbolic) Test failure in @sym/solve
                 Project: GNU Octave
            Submitted by: opoplawski
            Submitted on: Thu 14 Nov 2019 04:23:21 AM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Build Failure
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 5.1.0
        Operating System: GNU/Linux

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Details:

We have started to see the following error in the Fedora build:

@sym/solve ............................................. FAIL    1/10  
   >> [X, Y] = solve(x^2 == 4, x + y == 1, x, y)
      expected:    X = (sym 2×1 matrix)
      ⎡-2⎤
      ⎢  ⎥
      ⎣2 ⎦
   Y = (sym 2×1 matrix)
      ⎡3 ⎤
      ⎢  ⎥
      ⎣-1⎦
      got     : X = (sym 2×1 matrix)
  ⎡2 ⎤
  ⎢  ⎥
  ⎣-2⎦
Y = (sym 2×1 matrix)
  ⎡-1⎤
  ⎢  ⎥
  ⎣3 ⎦

See https://koschei.fedoraproject.org/package/octave-symbolic

It's don't obvious to me which of the dependencies that changed would have
triggered this failure.  Also, isn't this just an inverted solution?




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