From: ES <ruby-ml@...>
Date: 2005-06-09T09:57:05+09:00
Subject: Re: Newb math question


Le 9/6/2005, "brian" <brian@le-roy.org> a �crit:
>Can someone tell me why this code:
>    puts (9.0-8.9).to_s
>results in:
>    0.0999999999999996
>
>I'm expecting 0.01 as the result.  Do I have to specify the precision?
>Even with the full precision available on the platform (Windows XP), the
>correct answer is still 0.01, not what's printed.  What's the deal?  I
>like this language so far, but this is confusing...

Floating point math :/ You can use BigDecimal to avoid most problems.

>Brian

E

--
template<typename duck>
void quack(duck& d) { d.quack(); }