[Octave-bug-tracker] [bug #38423] [k:l:m] not compatible for m = -0

[Michael Godfrey]

URL:
  <http://savannah.gnu.org/bugs/?38423>

                 Summary: [k:l:m]  not compatible for m = -0
                 Project: GNU Octave
            Submitted by: godfrey
            Submitted on: Wed 27 Feb 2013 03:27:27 AM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Michael Godfrey
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Matlab gives:

>> zz=[-4:2:-0]

zz =

    -4    -2     0

>> fprintf('%g \n',zz)
-4 
-2 
-0 
>> 

But Ovtave gives:
octave:74> zz = [-4:2:-0]
zz =

  -4  -2   0

Note that Octave correctly handles:
octave:50> [-0:-2:-4]
ans =

  -0  -2  -4  

as does Matlab.

So, the sequence of the form [-n:-m:-0]
needs to be corrected.






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