Adds Math::TAU as the radius-based circle constant, equal to 2 * Math::PI. See http://tauday.com/

A small, but powerful tag-based template language for Ruby modeled after the ones used in MovableType and TextPattern. It has tags similar to XML, but can be used to generate any form of plain text (HTML, e-mail, etc...) adapted to work on Ruby 1.9.

Radius is a powerful tag-based template language for Ruby inspired by the template languages used in MovableType[http://www.movabletype.org] and TextPattern[http://www.textpattern.com]. It uses tags similar to XML, but can be used to generate any form of plain text (HTML, e-mail, etc...).