From: "Michael W. Ryder" <_mwryder@...>
Date: 2007-06-22T09:45:06+09:00
Subject: Re: Ruby doesn't know how to multiply

Yukihiro Matsumoto wrote:
> Hi,
> 
> In message "Re: Ruby doesn't know how to multiply"
>     on Fri, 22 Jun 2007 05:57:48 +0900, Lloyd Linklater <lloyd@2live4.com> writes:
> 
> |I tried this in Delphi, smalltalk and oracle SQL and got the correct 
> |result.
> 
> Interesting.  There are a few ways to get the "correct" result. 
> 
>   * fixed point number
>   * base 10 floating numbers
>   * comparison with epsilon
> 
> Does anyone know how these languages get the correct result?
> 
> 							matz.
> 
A simple way to get the correct figure is to do what is used often with 
currency to prevent these types of errors.  If I enter 'puts 
1495.0*6.0/1000.0' I get 8.97.  The only thing necessary is to keep 
track of the number of decimal points.