[Numpy-discussion] Proposal to make power return float, and other such things.

[Nathaniel Smith]

On 18 Feb 2014 07:07, "Robert Kern" <robert.kern at gmail.com> wrote:
>
> On Tue, Feb 18, 2014 at 12:00 PM, Nathaniel Smith <njs at pobox.com> wrote:
> > Perhaps integer power should raise an error on negative powers? That way
> > people will at least be directed to use arr ** -1.0 instead of silently
> > getting nonsense from arr ** -1.
>
> Controllable by np.seterr(invalid=...)? I could get behind that.

I'm not sure the np.seterr part would work or be a good idea, given that we
have no way to return or propagate NaN... I vote for just an unconditional
error.

-n
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