From: Daniel Lucraft <dan@...>
Date: 2007-07-20T01:17:11+09:00
Subject: Re: Map more than one array at once

Wil wrote:
> Hi all,
> 
> Better, but a map/inject solution would be desired.  Does anyone else
> know of a way to iterate through two arrays without the use of an
> index?  


def dot_prod(a, b)
  acc = 0
  a.zip(b) do |a1, b1|
    acc += a1*b1
  end
  acc
end

best,
Dan



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