What

Algebraic Relation Calculator implemented in ruby thanks to Treetop

> A = {(0,1),(2,3)}
> B = {(0,1),(1,2)}
> A+B  # union
{(0,1),(1,2),(2,3)}
> A/B  # intersection
{(0,1)}

Installation

• gem install treetop -y
• svn checkout http://rel.googlecode.com/svn/trunk/ rel
• cd rel
• ruby main.rb