Raymond L. Buvel wrote: > Since the interest is more in extended precision than in decimal > representation, there is another module that may be of interest. > > http://calcrpnpy.sourceforge.net/clnum.html > > It interfaces to the Class Library for Numbers (CLN) library to provide > both arbitrary precision floating point and complex floating point > numbers and the usual math functions. > > While I am the author of this module, I agree with Mark that a module > based on MPFR would be better since you have better control over > precision and rounding. > > I have looked at Sage (which uses MPFR) but it is a huge integrated > package so you can't just import what you need into one of your usual > Python scripts. > > I wrote the clnum module mainly to support arbitrary precision in an RPN > calculator available from the same SourceForge project. However, it > also works nicely as a stand-alone module. > > At this time, there is no Windows installer available for Python 2.6 > because I don't use Windows at home and the person who normally builds > the installer for me is no longer interested. If someone wants to > follow the published instructions and send me the resulting installer, I > will put it up on SourceForge. > I'm not sure why nobody has mentioned gmpy, except possibly because it advertises its alpha status and doesn't have many active developers.
regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list