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Recreational Mathematics (David Eppstein)
An extensive list of web resources for recreational math.
www.ics.uci.edu
A Disproof of Pythagoras' Theorem?
A method of disproving the Theorem of Pythagoras is presented. The author is adamant that this is intended only as a puzzle to find the mistake in the arguments, and not as a serious proposal.
www.geocities.com
Curves you've heard of and curves you haven't, from Astroid to the Witch of Agnesi.www-groups.dcs.st-and.ac.uk
At Mathematics Museum (Japan) you would be surprised how interesting mathematics is. You will find exhibition rooms produced by Japanese researchers and educators.
mathmuse.sci.ibaraki.ac.jp
Devoted to exploring the more entertaining (and generally lesser known) areas of mathematics. Can be enjoyed by anyone, from individuals with little or no math background to professors of the subject.
www.geocities.com
Furman University Mathematical Quotation Server - random or searchable math quotes.
math.furman.edu
Given a m * n rectangle, place all numbers from 1 to mn that minimizes the sum of the products of rows and columns (both in Spanish and English).
www.alpertron.com.ar
Algorithmic music determined by mathematics and by the musical preferences of a human. General MIDI files.
www.geocities.com
Mathematical Spectrum is a magazine for students and teachers of mathematics in universities, colleges and schools worldwide. It may be read by anybody interested in mathematics as a recreation.
www.shef.ac.uk
A page on polyiamond puzzles. Includes many pages on tessellation.
www.mathpuzzle.com
Contains a introduction to Roman numerals including a translation of the digits used and a converter which can convert decimal to Roman numerals and vice versa.
www.novaroma.org
Recreational Mathematics Forum
A forum for posting messages about math recreations. Hosted at Delphi.
forums.delphiforums.com
A brief digression into how people perceive symmetrical patterns -- what makes them boring, interesting, or overly intricate
home.earthlink.net
MAA Library List in Recreational Mathematics
Book list split into categories. Includes title, author, publisher and date information about each book.
www.maa.org
A guide to major motion pictures with scenes of real mathematics.
world.std.com