From: Phrogz <gavin@...>
Date: 2007-03-20T04:50:11+09:00
Subject: Re: truncate trouble

On Mar 19, 1:37 pm, "Greg Lorriman" <t...@lorriman.com> wrote:
> This
>
> ('40.12'.to_f*100).to_i
>
> results in this integer :
>
> 4011

What I find interesting is that the #inspect result of both f1 and f2
below are the same, when they internally are clearly not.

irb(main):001:0> f1 = '40.12'.to_f
=> 40.12
irb(main):002:0> f1*100
=> 4012.0
irb(main):003:0> (f1*100).to_i
=> 4011
irb(main):004:0> (f1*100).round.to_i
=> 4012

irb(main):005:0> 4012.0.to_i
=> 4012

irb(main):006:0> f2 = '40.12000000000001'.to_f
=> 40.12
irb(main):007:0> (f2*100).to_i
=> 4012