On Fri, Oct 7, 2016 at 6:12 PM, Charles R Harris <charlesr.har...@gmail.com> wrote: > Hi All, > > The time for NumPy 1.12.0 approaches and I like to have a final decision on > the treatment of integers to negative integer powers with the `**` operator. > The two alternatives looked to be > > Raise an error for arrays and numpy scalars, including 1 and -1 to negative > powers. > > Pluses > > Backward compatible > Allows common powers to be integer, e.g., arange(3)**2 > Consistent with inplace operators > Fixes current wrong behavior. > Preserves type > > > Minuses > > Integer overflow > Computational inconvenience > Inconsistent with Python integers > > > Always return a float > > Pluses > > Computational convenience > > > Minuses > > Loss of type > Possible backward incompatibilities > Not applicable to inplace operators
I guess I could be wrong, but I think the backwards incompatibilities are going to be *way* too severe to make option 2 possible in practice. -n -- Nathaniel J. Smith -- https://vorpus.org _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion
