[Octave-bug-tracker] [bug #30114] perms generates different results to matlab

[Qianqian Fang]

Follow-up Comment #2, bug #30114 (project octave):

ok, here are the outputs:

==========================================
octave 
octave:1> perms(1:4)
ans =

   1   2   3   4
   2   1   3   4
   1   3   2   4
   2   3   1   4
   3   1   2   4
   3   2   1   4
   1   2   4   3
   2   1   4   3
   1   3   4   2
   2   3   4   1
   3   1   4   2
   3   2   4   1
   1   4   2   3
   2   4   1   3
   1   4   3   2
   2   4   3   1
   3   4   1   2
   3   4   2   1
   4   1   2   3
   4   2   1   3
   4   1   3   2
   4   2   3   1
   4   3   1   2
   4   3   2   1

octave:2> perms([2 1 4 3])
ans =

   2   1   4   3
   1   2   4   3
   2   4   1   3
   1   4   2   3
   4   2   1   3
   4   1   2   3
   2   1   3   4
   1   2   3   4
   2   4   3   1
   1   4   3   2
   4   2   3   1
   4   1   3   2
   2   3   1   4
   1   3   2   4
   2   3   4   1
   1   3   4   2
   4   3   2   1
   4   3   1   2
   3   2   1   4
   3   1   2   4
   3   2   4   1
   3   1   4   2
   3   4   2   1
   3   4   1   2
==========================================
matlab
>> perms(1:4)

ans =

     4     3     2     1
     4     3     1     2
     4     2     3     1
     4     2     1     3
     4     1     2     3
     4     1     3     2
     3     4     2     1
     3     4     1     2
     3     2     4     1
     3     2     1     4
     3     1     2     4
     3     1     4     2
     2     3     4     1
     2     3     1     4
     2     4     3     1
     2     4     1     3
     2     1     4     3
     2     1     3     4
     1     3     2     4
     1     3     4     2
     1     2     3     4
     1     2     4     3
     1     4     2     3
     1     4     3     2

>> perms([2 1 4 3])

ans =

     3     4     1     2
     3     4     2     1
     3     1     4     2
     3     1     2     4
     3     2     1     4
     3     2     4     1
     4     3     1     2
     4     3     2     1
     4     1     3     2
     4     1     2     3
     4     2     1     3
     4     2     3     1
     1     4     3     2
     1     4     2     3
     1     3     4     2
     1     3     2     4
     1     2     3     4
     1     2     4     3
     2     4     1     3
     2     4     3     1
     2     1     4     3
     2     1     3     4
     2     3     1     4
     2     3     4     1


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