From: Lucas Carlson <lucas@...>
Date: 2005-09-07T07:46:28+09:00
Subject: [ANN] Units for Ruby

I have also created a new library to add units to numbers in Ruby:

gem install units
http://units.rubyforge.org/

It is extremely simple to use:

    require 'units/standard'
    1.lb.to_ounces # => 16.0

    require 'units/currency'
    1.euro.usd # => 1.2545

    1.usd.unit # => :usd
    1.usd.to_yen # => 108.9 # this information is grabbed on the fly
via a SOAP call
    1.usd.to_yet.unit # => :yen

It is also very simple to add both static and dynamic conversions on
your own via add_unit_conversions and add_unit_aliases.

I hope you find this library useful too.