[Octave-bug-tracker] [bug #43551] Matlab incompatibility for gamma function for negative integer arguments

[John W. Eaton]

URL:
  <http://savannah.gnu.org/bugs/?43551>

                 Summary: Matlab incompatibility for gamma  function for
negative integer arguments
                 Project: GNU Octave
            Submitted by: jwe
            Submitted on: Thu 06 Nov 2014 08:07:42 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: jwe
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

The change made because of the following patch submission results in
Matlab-incompatible behavior.

  https://savannah.gnu.org/patch/?func=detailitem&item_id=8101

Apparently Matlab's gamma function returns Inf for negative integer values and
for 0 (Matlab has no -0).

Is that important for us?

If we decide to keep the current behavior, then I think we should at least
mention that the difference with Matlab is intentional.




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