From: Joel VanderWerf <vjoel@...>
Date: 2007-03-26T07:03:33+09:00
Subject: Re: Backus, Functional Programming, and Ruby

Jesse Merriman wrote:
...
> # Test case from the lecture. Should print out 28.
> puts inner_product.call([[1,2,3], [6,5,4]])
> ---------------------------------------------------------------------

Ruby has its own way of doing things, not that there is anything wrong 
with defining new ways:

[[1,2,3], [6,5,4]].transpose.map{|x,y|x*y}.inject{|s,x|s+x}
=> 28

-- 
        vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407