Thanks this does the job And yes, I really need this accuracy.. Many Thanks ----- Original Message ----- From: "Felipe Almeida Lessa" <[EMAIL PROTECTED]> To: "Fredrik Lundh" <[EMAIL PROTECTED]> Cc: <python-list@python.org> Sent: Tuesday, March 28, 2006 6:00 PM Subject: Re: 1.090516455488E9 / 1000000.000 ???
> Em Ter, 2006-03-28 às 16:59 +0200, Fredrik Lundh escreveu: >> and consider using >> >> http://www.python.org/doc/lib/module-decimal.html >> >> instead. > > $ python2.4 > Python 2.4.2 (#2, Nov 20 2005, 17:04:48) > [GCC 4.0.3 20051111 (prerelease) (Debian 4.0.2-4)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. >>>> from decimal import Decimal >>>> a = Decimal("1.090516455488E15") >>>> a > Decimal("1.090516455488E+15") >>>> b = a / 1000000 >>>> b > Decimal("1090516455.488") >>>> str(b) > '1090516455.488' > > *But*, > > $ python2.4 -mtimeit -s 'from decimal import Decimal; a = > Decimal("1.090516455488E15")' 'a/1000000' > 1000 loops, best of 3: 222 usec per loop > $ python2.4 -mtimeit -s 'a=1.090516455488E15' 'a/1000000' 1000000 loops, > best of 3: 0.234 usec per loop > $ calc 222/0.234 > ~948.71794871794871794872 > > Decimal is almost one thousand times slower. Do you really need this > accuracy? > > HTH, > > -- > Felipe. > > -- > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list