[Python-Dev] Can 3.1 still be built without complex? (original) (raw)
Antoine Pitrou solipsis at pitrou.net
Thu Oct 15 21:17:42 CEST 2009
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Mark Dickinson <dickinsm 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 (6.123031769111886e-17+1j)
Don't we have a precision problem here? 0.5 is supposed to be represented exactly, isn't it?
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