From: elof@...
Date: 2007-10-18T21:59:29+09:00
Subject: Re: 2 - 2.01 ??




On Thu, 18 Oct 2007 21:49:37 +0900, Michal Sza <nicpon@nicpon.net> wrote:
> Hey,
> How come 2 - 2.01 = -0.00999999999999979 and not -0.01
> ???
> Can someone explain this to me please?

Because you are using floating point.

Reas this article for an explanation:

"What Every Computer Scientist Should Know About Floating-Point Arithmetic"

http://docs.sun.com/source/806-3568/ncg_goldberg.html

  Kristian