From: "trans.  (T. Onoma)" <transami@...>
Date: 2004-12-08T08:53:27+09:00
Subject: Re: Ruby 2.0

On Tuesday 07 December 2004 06:12 pm, Oliver Cromm wrote:
| ruby -e'require "matrix";a=[1];(1..10).each{|n| print "
| "*(10-n)*3,a.map{|i|\
| i.to_s.center(6)}.join,$/;a.push(0);a=(Vector[*a]+Vector[*a.reverse]).to_a}
|' 

A touch smaller:

ruby -e'require"matrix";a=[1];(1..10).each{|n|print" "*(10-n)*3,a.map{|i|\
i.to_s.center(6)}.join,$/;a<<0;a=(Vector[*a]+Vector[*a.reverse]).to_a}'