From: John Joyce <dangerwillrobinsondanger@...>
Date: 2007-07-20T04:42:03+09:00
Subject: Re: Float.to_int not working ??


On Jul 19, 2007, at 10:15 AM, Stefan Rusterholz wrote:

> Lloyd Linklater wrote:
>> print "#{((1.0 + 0.025)/0.0002 + 1.0).round.to_i} \n"
>
> Round already returns an integer, the .to_i is redundant ;-)
>
> Regards
> Stefan
>
> --  
> Posted via http://www.ruby-forum.com/.
>
For more accurate math, use really large integers and simply keep   
track of where you want your decimal.
You wouldn't dare write an accounting application using floats, would  
you?
If you absolutely must use floats for something, and you need greater  
accuracy, you should use something like C and its extra long float  
types, coupled with at least a 64 bit system, ideally go get an old  
PowerMac G5, its math coprocessor is 128 bits. It'll give you as good  
as you can get without buying a much more expensive machine or  
cobbling together a cluster of computers.