[Python-Dev] Round Bug in Python 1.6?

[Vladimir Marangozov]

Tim Peters wrote:
> 
> The best possible IEEE-754 double approximation to 3.1416 is (exactly)
> 
> 3.141599999999999948130380289512686431407928466796875
> 
> so the output you got is correctly rounded to 17 significant digits.  IOW,
> it's a feature.

I'm very respectful when I see a number with so many digits in a row. :-)

I'm not sure that this will be of any interest to you, number crunchers,
but a research team in computer arithmetics here reported some major
results lately: they claim that they "solved" the Table Maker's Dilemma
for most common functions in IEEE-754 double precision arithmetic.
(and no, don't ask me what this means ;-)  For more information, see:
http://www.ens-lyon.fr/~jmmuller/Intro-to-TMD.htm

-- 
       Vladimir MARANGOZOV          | Vladimir.Marangozov@inrialpes.fr
http://sirac.inrialpes.fr/~marangoz | tel:(+33-4)76615277 fax:76615252