[EMAIL PROTECTED] wrote:
> BigDecimal is a Python class that supports decimal arithmetic on very large
> integers. BigDecimal was inspired by the posting of BigDec to c.l.py by Tim
> Peters. BigDecimal implements all the commonly used integer methods. (It
> doesn't implement any of the binary/shifting operations.)
>
> It has been optimized for performance. It uses a 4x4 Toom-Cook algorithm for
> multiplication and a new, very fast, division algorithm. If GMPY is
> available, it will be automatically used.
>
> Performance examples, computing the decimal represendation of the 42nd
> Mersenne prime:
> 2**25964951 - 1
>
> Tim Peter's posting to c.l.py: 13 minutes 41 seconds
> BigDecimal: 59 seconds
> BigDecimal w/gmpy: 10 seconds
You might want to look into mxNumber (part of the egenix-mx-experimental
package):
http://www.egenix.com/files/python/mxNumber.html
There's a C type called Integer in that package that basically
wraps the GMP integer type.
--
Marc-Andre Lemburg
eGenix.com
Professional Python Services directly from the Source (#1, Apr 01 2005)
>>> Python/Zope Consulting and Support ... http://www.egenix.com/
>>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/
>>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/
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