On Mon, Nov 23, 2009 at 12:28 PM, Richard D. Moores <rdmoo...@gmail.com>wrote:
> Can't find the answer in the docs for 3.1
>
> To print 123**34.6 to 5 sig digits,
>
> print("%.*e" % (4, 123**34.6))
>
> will do the job:
>
> >>> print("%.*e" % (4, 123**34.6))
> 2.0451e+72
>
> However, if the number is 123**346, using
>
> print("%.*e" % (4, 123**346))
>
> gets me
>
> >>> print("%.*e" % (5, 123**346))
> Traceback (most recent call last):
> File "<pyshell#28>", line 1, in <module>
> print("%.*e" % (5, 123**346))
> OverflowError: Python int too large to convert to C double
>
Try the decimal module:
http://docs.python.org/library/decimal.html
HTH,
Wayne
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