[Octave-bug-tracker] [bug #48564] Octave does not accept 1 / ND array

[Philip Nienhuis]

URL:
  <http://savannah.gnu.org/bugs/?48564>

                 Summary: Octave does not accept 1 / ND array
                 Project: GNU Octave
            Submitted by: philipnienhuis
            Submitted on: Tue 19 Jul 2016 11:03:29 PM CEST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: philipnienhuis
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

Matlab r2016b prerelease accepts "1 / rand (5, 5, 5);"
I'm unsure about how to interpret this but it seems to work fine in Matlab.

In Octave:

>> 1 / rand (5, 5, 5)
error: flow: operator /: nonconformant arguments (op1 is 1x1, op2 is 5x25)


I don't know if this qualifies as a bug or just a Matlab feature not (yet?)
implemented in Octave; provisionally I assumed the latter. 
Octave's error message suggests the second & third dimension of "rand (5, 5,
5)" aren't recognized properly; does that suggest a different bug?

To be sure, Matlab in turn doesn't accept a simple 2D matrix at the RHS:

>> 1 / rand (2, 2)
Error using /
Matrix dimensions must agree


At least Octave and Matlab agree there :-)

I hit this when trying out reducepatch.m (patch #8912) with the examples from
Matlab itself.

(Mageia5 64b, hg id ef91e43f162a "set DLL ....")




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?48564>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/