[Octave-bug-tracker] [bug #60086] Matrix exponentiation fails for empty matrix

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?60086>

                 Summary: Matrix exponentiation fails for empty matrix
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 21 Feb 2021 04:02:04 PM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Calling A^2 causes an error when A becomes a 0x0 matrix. Further, the error
text is unrelated to the cause of the error.


A = zeros(0,0), A^2


Result:

A = [](0x0)
error: for x^y, only square matrix arguments are permitted and one argument
must be scalar.  Use .^ for elementwise power.


Desired result: return an empty matrix.




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