On Sun, 03 Aug 2008 16:50:22 +0200, Diez B. Roggisch <[EMAIL PROTECTED]> wrote: > CNiall schrieb: ... >> >>> 0.2 >> 0.20000000000000001 ...
> Welcome to the wonderful world of IEEE754. Just because other languages > shield you from the gory details they still are there. Python chose to > not do that, instead showing the rounding errors introduced and making > the developer decide how to deal with these. Which other languages try to hide how floating-point numbers behave? The correct way of dealing with this (you probably agree) is never to expect infinite precision from floats, and design your code/algorithms accordingly -- never use "if f1==f2:" and so on. Floating-point is a tricky area. Lots of programmers (including me) know too little about it. /Jorgen -- // Jorgen Grahn <grahn@ Ph'nglui mglw'nafh Cthulhu \X/ snipabacken.se> R'lyeh wgah'nagl fhtagn! -- http://mail.python.org/mailman/listinfo/python-list
