[Python-bugs-list] Inverse hyperbolic functions in cmath module (PR#231)

[tim_one@email.msn.com]

[Nadav Horesh, suggests different algorithms in cmath, for some complex
 inverse hyperbolics]

[Guido, misfires]
> We're just using the VC++ C library.

C doesn't define any functions on complex numbers -- cmathmodule.c
implements these all on its own.  I can't make time to look at this now, but
complaining to Microsoft about this will do Nadav even less good than when
it *is* their problem <wink>.