[Python-Dev] RE: [Numpy-discussion] RE: Possible bug (was Re: numpy, overflow, inf, ieee, and rich comparison)

[William Park]

On Wed, Oct 11, 2000 at 07:22:54PM -0700, Huaiyu Zhu wrote:
> >>> from math import *
> >>> exp(777)
> inf
> >>> exp(-777)
> 0.0
> >>> sqrt(-1)
> Traceback (innermost last):
>   File "<stdin>", line 1, in ?
> OverflowError: math range error

Dear Guido, 

'exp(-777)' should return 0, not raise OverflowError exception.  It is
mathematically correct behaviour.  I am less certain about returning
'inf', though.

---William Park, Open Geometry Consulting