[Octave-bug-tracker] [bug #42301] '<' should be transitive for complex values

[David Spies]

URL:
  <http://savannah.gnu.org/bugs/?42301>

                 Summary: '<' should be transitive for complex values
                 Project: GNU Octave
            Submitted by: dspyz
            Submitted on: Mon 05 May 2014 09:56:46 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

I can't figure out what rule octave uses to determine ordering among complex
values, but it's clearly not transitive

octave:19> 3i < -4
ans =  1
octave:20> -4 < 0
ans =  1
octave:21> 3i < 0
ans = 0

In Matlab, it throws out the imaginary part and just compares the real part:

 
>> 2 < i

ans =

     0

>> i < 2

ans =

     1

>> i < 0

ans =

     0

>> 0 < i

ans =

     0







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