From: "Michael W. Ryder" <_mwryder55@...>
Date: 2010-01-10T11:55:08+09:00
Subject: Re: Confusing docs . . . how do I use gcd2?

Matt wrote:
> On Jan 9, 8:32 pm, Matt <mgregor...@gmail.com> wrote:
>> The standard library docs don't make sense to me a lot of the time.
>> How do I use the gcd2 method in class Integer (or is it in file
>> mathn.rb . . . no idea)?
> 
> Here's a link to what I'm looking at:
> http://www.ruby-doc.org/stdlib/libdoc/mathn/rdoc/classes/Integer.html#M000926

Are you using 1.8.x or 1.9.x?  The method is defined in mathn.rb for 1.8 
but not for 1.9.