[issue1640] Enhancements for mathmodule
George Castillo added the comment: Is there still interest in implementing the inverse hyperbolic trig functions for real numbers? I would be willing to explore this if there is. -- nosy: +gmcastil __ 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
[issue1640] Enhancements for mathmodule
George Castillo added the comment: Just a quick addition here regarding the singularities to these functions. The atanh(x) is only defined for |x| < 1, so atanh(1) or atanh(-1) isn't singular there so much as simply isn't defined. So, even though the function approaches infinite as x -> 1, it wouldn't really be correct to return a value at |x| = 1. I think raising an exception at those points would be more correct. __ 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
[issue1640] Enhancements for mathmodule
George Castillo added the comment: I misunderstood the rationale for the function returning infinite at those points - I didn't realize that C99 was the governing force behind the implementation of these functions, rather than mathematical rigor. Thanks for pointing it out. In that case, I agree with you that, in order to conform, these functions would need to return the values required by those documents. __ 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
