RPN in Ruby


Links of Relevance:

The home page for Ruby

Here and here: documentation, tutorials, articles, etc.

Extensive reference manual, with many examples side by side with the text

Ruby QuickRef: a quick reference

Programming in Ruby: a short overview of the language

Programming Ruby: the 1st edition of ‘the pickaxe book’

Learn Ruby the hard way: a book

Ruby essentials: a book

Ruby user's guide: a tutorial

Learn to program: a tutorial

Learn Ruby: a set of interactive tutorials

Try Ruby!: an interactive, hands-on tutorial (also a ‘web Ruby terminal’)