From: "Michael W. Ryder" <_mwryder55@...>
Date: 2010-01-10T12:20:05+09:00
Subject: Re: Confusing docs . . . how do I use gcd2?

Justin Collins wrote:
> Justin Collins wrote:
>> 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 
>>>
>>>
>>>   
>> Both, sort of.
>>
>> ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-linux]
>>
>> irb(main):001:0> require 'mathn'
>> => true
>> irb(main):002:0> 12.gcd(4)
>> => 4
>>
>> -Justin
>>
> 
> Sorry, that should be gcd2.
> 
> -Justin
> 
For your information gcd works with 1.9.1 but gcd2 does not.  Not sure 
what the difference between gcd and gcd2 are and why gcd2 was dropped 
from mathn in 1.9.1.