[Octave-bug-tracker] [bug #57704] Exactly Matlab compatible behavior for rats?

[Rik]

URL:
  <https://savannah.gnu.org/bugs/?57704>

                 Summary: Exactly Matlab compatible behavior for rats?
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Thu 30 Jan 2020 06:00:07 PM PST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

rats() has been much improved for the 6.1 release of Octave.  However, it is
still not identical to Matlab.  Do we care enough to spend programmer time on
this issue?

Example 1:


assert (rats (2.0005, 9), "4001/2000");


Octave produces "2" in this case, although if the string length is updated to
10 then the same answer is had.  This is because Octave reserves one extra
character for the minus sign in case it is present.  It isn't present here,
but the reservation has already occurred.

Example 2:


assert (rats (123, 2), " *");


Octave produces "123" which does seem incorrect.






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