Some Stuff from Ruby Standard Library
BigDecimal - provides arbitrary-precision floating point decimal arithmetic.
prime.rb - prime numbers and factorization library.
Some Ruby Tools (Alphabetical Order)
Arcadia - a light Integrated Development Environment (IDE) for Ruby written in Ruby using the classic tcl/tk GUI toolkit.
Brite - an innovative, blog aware, static website generator.
Col - high-level console color formatting for Ruby.
DISLIN - a high-level plotting library.
Facets - the premiere collection of method extension and standard library additions for the Ruby programming language.
OCRA (One-Click Ruby Application) - builds Windows executables from Ruby source code.
Pry - alternative to the standard IRB shell for Ruby.
RubyInline - allows you to write foreign code within your Ruby code.
Ruby ROOT - a Ruby extension module that allows the user to interact with any ROOT class from the Ruby scripting language.
Sequel - the database toolkit for Ruby.
String::Mask - provides a string utility to manipulate strings in logicomathematical manner.
Some Ruby Forum Topics (Chronological Order Based on First Posts)
A few noob questions. (about IDE) (2012-01-11)
Desktop ui testing options (2012-01-04)
reading from file without end-of-lines (2011-12-09)
Confusing results from string multiplication (2011-12-08)
How to Design Module Method? (2011-11-24)
run an script without waiting to be done (2011-11-22)
Ruby for Windows (2011-11-15)
calculating the prime factors of a very large number (2011-11-11)
Alias for Module Method (2011-11-08)
ANSI v1.4.0 released (2011-11-05)
=== Ruby and science ? === (2010-12-16)
Is there a current ruby binding to libevent? (2010-06-17)
=== Matrix === (2006-09-10)
Some Stuff from Wikipedia
Miller-Rabin Primality Test - probabilistic test for prime numbers.
Some Stuff from Other Sites (Alphabetical Order)
Google SketchUp Ruby API
How Many Primes Are There?
NIST Digital Library of Mathematical Functions
Ruby on Windows
What's Wrong With Ruby Module Functions
Try a New Language in Your Browser (Alphabetical Order)
From Dart News Dec 19, 2011:
F#: http://www.tryfsharp.org/ (requires Moonlight)
OCaml: http://ocamljava.x9c.fr/toplevel/toplevel.html (requires Java)
Python: http://www.trypython.org/ (requires Silverlight)
From Steve Messick Dec 23, 2011:
And finally here are some fun pictures.
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