From: Phrogz <gavin@...>
Date: 2007-01-24T01:25:10+09:00
Subject: Re: Multiplying array

WKC CCC wrote:
> Does anyone know of a function that multiplies the contents of an array.

module Enumerable
  def product
    inject{ |piece, prod| prod*piece }
  end
  def sum
    inject(0){ |piece, total| total+piece }
  end
end

a = (1..10)
p a.sum
#=> 55
p a.product
#=> 3628800