On Mon, Oct 12, 2009 at 3:47 PM, Anand Chitipothu <anandol...@gmail.com>wrote:
> On Mon, Oct 12, 2009 at 2:42 PM, Baiju Muthukadan <ba...@muthukadan.net> > wrote: > > http://bitcheese.net/wiki/nopython > > > > Don't start a flame war now, please ;) > > 2.3 - 3.4 and 2/3.0 in Python, Ruby and Haskell interpreters. > > $ python3.0 > Python 3.0.1 (r301:69597, Feb 14 2009, 19:03:52) > [GCC 4.0.1 (Apple Inc. build 5490)] on darwin > Type "help", "copyright", "credits" or "license" for more information. > >>> 2.3 - 3.4 > -1.1000000000000001 > >>> 2/3.0 > 0.66666666666666663 > > $ irb > >> 2.3 - 3.4 > => -1.1 > >> 2/3.0 > => 0.666666666666667 > >> ^D > > $ ghci > GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help > Loading package base ... linking ... done. > Prelude> 2.3 - 3.4 > -1.1 > Prelude> 2/3.0 > 0.6666666666666666 > Prelude> Leaving GHCi. > > It looks like number of decimal digits printed are 17 in Python, 16 in > Haskell and 15 in Ruby. > > Is there any way to change that behavior in Python? > Not in the interpreter AFAIK. In code, use Decimal type. import decimal >>> x=decimal.Decimal('2.3') >>> y=decimal.Decimal('3.4') >>> x-y Decimal("-1.1") I am not however a fan of the decimal module since it uses strings as the base type. > Anand > _______________________________________________ > BangPypers mailing list > BangPypers@python.org > http://mail.python.org/mailman/listinfo/bangpypers > -- --Anand
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