From: walter a kehowski <wkehowski@...>
Date: 2005-08-07T19:11:07+09:00
Subject: Re: cartesian product


"Giovanni Intini" <intinig@gmail.com> wrote in message 
news:a32174e30508070301673ce4d1@mail.gmail.com...
Remember that in Ruby you seldom have standalone functions. You should
probably create a class that has the cartprod method.

Giovanni,

Here's what I have so far:

def cartprod(a,b)

 c=[]

 a.each do |ae|
  b.each do |be|
    c << [ae, be]
  end
 end

return c

end

a=[1,2,3]

b=[4,5,6]

c=cartprod(a,b)

c.each { |ce| print ce,"\n" }

and this does print all the elements of c. Great. Now how do I do a class? 
Can I create a new method for Array?

Walter Kehowski