On Oct 18, 8:49 am, Michal Sza <nic... / nicpon.net> wrote: > Hey, > How come 2 - 2.01 = -0.00999999999999979 and not -0.01 > ??? > Can someone explain this to me please? > -- > Posted viahttp://www.ruby-forum.com/. This question comes up a lot. Google "floating point errors" for some good links.