checking if a number is int

[Johannes Gijsbers]

Dan Bishop wrote:
> As it shouldn't.  In CPython 2.2, math.sqrt(1e100) is 7 629 769 841
> 091 887 003 294 964 970 946 560 higher than its actual value.  With an
> absolute error this high, who cares about whether there's a fractional
> part?
> 

I'm not sure if anyone would care, but it's quite easy to change the 
function to also accept large numbers:

>>> import math
>>> def isWhole(number):
...     return long(number) == number
...
>>> isWhole(math.sqrt(1e100))
1

Johannes Gijsbers

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