From: Robert Klemme <shortcutter@...>
Date: 2006-12-05T19:30:08+09:00
Subject: Re: Question about Ruby philosophy

On 05.12.2006 10:03, Yukihiro Matsumoto wrote:
> In message "Re: Question about Ruby philosophy"
>     on Tue, 5 Dec 2006 17:20:10 +0900, Robert Klemme <shortcutter@googlemail.com> writes:
> 
> |I believe I remember that "1 / 2" used to return "Rational(1, 2)" with 
> |'rational' loaded.  Is my memory wrong here?
> 
> Perhaps, you've confused 'rational' and 'mathn'.

Exactly!

 >> 1 / 2
=> 0
 >> require 'mathn'
=> true
 >> 1 / 2
=> 1/2
 >> (1 / 2).class
=> Rational

I just notice a strange inconsistency:

 >> 12:25:18 [~]: irbs
 >> require 'rational'
=> true
 >> 1.to_r / 2
=> Rational(1, 2)
 >> require 'mathn'
=> true
 >> 1 / 2
=> 1/2
 >> 1.to_r / 2
=> 1/2

The output of Rational's inspect method seems to change depending on 
whether "rational" or "mathn" is required.

Thank you, Matz!

	robert