From: Rha7 <rha7.com@...>
Date: 2009-06-08T05:55:08+09:00
Subject: Re: adding, multiplying array

Haris Bogdanovi� wrote:
> Hi.
> 
> I want to multply all elements of two arrays and add that to all elements of 
> the third array like this:
> 
> c+=a*b
> 
> c=[1,1,1]
> a=[2,2,2]
> b=[3,3,3]
> 
> c=[7,7,7]  # (1+2*3)=7
> 
> I tried (found on google):
> 
> a.zip(b).map {|i,j| i*j} (don't really know how that works)
> 
> and how to add that to c array ?
> 
> Thanks
> 
> 

require 'pp'
d=[]
a.each_with_index{|o, i| d[i] = a[i] + b[i] * c[i] };
pp d