From: walter a kehowski <wkehowski@...>
Date: 2005-08-07T18:56:10+09:00
Subject: Re: cartesian product

"Giovanni Intini" <intinig@gmail.com> wrote in message 
news:a32174e305080702273dc6accf@mail.gmail.com...
> How would I create a function that will take list (array) of integers and
> return their cartesian product?

>You could do something like:
>
>a = [1, 2, 3]
>
>b = []
>
>a.each do |elementone|
> a.each do |elementtwo|
>    b << [elementone, elementtwo]
> end
>end
>
>That should do the trick (I haven't tested it though)

Giovanni,

Yes, that works. Another nuby question: How to make it a function? Such as 
cartprod(a,b) returning c?

Walter