From: Steven Lumos <steven@...>
Date: 2006-09-09T06:48:59+09:00
Subject: Re: symbol tricks

Jason Nordwick <jason@adapt.com> writes:

> YAD wrote:
>> Jason Nordwick wrote:
>>> (grid+grid.transpose)
>> Is this correct Ruby? If so, is it documented online somewhere?
>> You're not really adding the arrays, are you?
>
> Plus for arrays and strings is concatenation. I don't like it either, b/c array plus should be addition of corresponding elements, but that is the way things are.
>
> -j

>> require 'matrix'
=> true
>> Vector[1,2,3] + Vector[4,5,6]
=> Vector[5, 7, 9]

Steve