Mark Dickinson added the comment: Hmmm.
For atanh(1): raising OverflowError is actually consistent with what currently happens. The only singularity that's already present in math is log(0), and it seems that that raises OverflowError on OS X, Linux and Windows... I wonder whether this is what Tim meant to say? For acosh(0): you're right, and I'm wrong---this should definitely return a NaN and set errno. I guess that dividing 0 by 0 doesn't set errno on Windows. Okay: let's set it directly there. I do still think that asinh(nan), atanh(nan) and acosh(nan) should return nan and not raise any exceptions, just for the sake of consistency with Linux/OS X and with the other libm functions. I guess I don't really care about asinh(+/-inf), etc: an infinite return value will be caught by the stuff in math_1 anyway. __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue1640> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
