[Python-Dev] Can 3.1 still be built without complex?

Antoine Pitrou solipsis at pitrou.net
Thu Oct 15 21:17:42 CEST 2009

Mark Dickinson <dickinsm <at> gmail.com> writes:
> There's one respect in which complex is slightly more tightly
> integrated in py3k than in trunk:  raising a negative number to a
> non-integer power (e.g., (-1)**0.5) gives a complex result in py3k.

>>> (-1)**.5

Don't we have a precision problem here? 0.5 is supposed to be represented
exactly, isn't it?

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