From: Neil Stevens <neil@...>
Date: 2005-12-13T10:38:10+09:00
Subject: Re: Using Float For Currency

Hunter's Lists wrote:
> Howdy,
> 
> I have some methods that manipulate floats that represent a currency amount.
> 
> I often end up with more precision than I need, i.e.: $9.756.
> 
> What is the best way to scale that to 9.76?

require 'bigdecimal'

amount = BigDecimal.new('9.756')
rounded = (amount * 100).round / 100
printf('%.02f', rounded)

Outputs '9.76'
-- 
Neil Stevens - neil@hakubi.us

'A republic, if you can keep it.' -- Benjamin Franklin