From: Hank Gong <hankgong@...>
Date: 2007-08-11T10:25:01+09:00
Subject: Re: Quick Float question

This is because the 3.33333333333333 is not the exact value you got
from 10.0/3.0. Ruby store more information you can't not see.
So if  you want to compare the float, you can write it as
(10.0/3.0 - 3.3333333333).abs <= 0.0001

On Aug 11, 10:10 am, Cliff Rowley <cliffrow...@gmail.com> wrote:
> I'm doing some math with Ruby and I'd really like to know why:
>
> irb(main):002:0> 10.0 / 3.0
> => 3.33333333333333
>
> but
>
> irb(main):003:0> (10.0 / 3.0) == 3.33333333333333
>
> is
>
> => false
>
> Thanks :-)
>
> Cliff