[issue9920] test_cmath on atan fails on AIX

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

Sorry---one more question:  could you tell me what the following gives on the AIX machine?

Python 2.7 (r27:82500, Aug 15 2010, 14:21:15) 
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from cmath import tanh
>>> tanh(complex(-0.0, 0.0))
(-0+0j)


Thanks.

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