From: Andrea Fazzi <andrea.fazzi@...>
Date: 2008-11-04T22:50:20+09:00
Subject: Re: Conditional overriding of operators

Daniel Vartanov ha scritto:
> Hello!
>
> I am trying to replace .+ operator of Numeric class if and only if
> argument (summand) is my own class.
>
> To be more specific: I am writing geometry module in Ruby and need to
> implement vector-number multiplication so that both:
>
> 2 * vector
> vector * 2
>
> work well.
>
> Therefore I need to replace .+ method of Numeric without spoiling
> arithmetical operations with other classes.
>   

Hi Daniel,

take a look at:

http://www.splatbang.com/rubyquiz/quiz.rhtml?id=179_Modular_Arithmetic

Hope that helps.
Andrea