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Amazing Spiro -
An applet for making spirograph graphs. Includes options for size, color and shape. Allows saving of completed image.
http://cgibin.erols.com/ziring/cgi-bin/spiro.pl/spiro.html Spirocharts -
A windows application that creates mathematically precise spirograph drawings; savable as images.
http://www.nehuenmultimedia.com.ar/html/spirograph.html Mathematrix -
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.
http://www.adelphi.edu/~StemkosL/mathematrix/ Fun With Mathematics -
Includes pages on the topics of primes, fibonacci numbers, PI computation, data encryption and links to calculator programs.
http://www.geocities.com/hjsmithh/ Geometric Packing Problems -
By Joseph Malkevitch: "Given one shape X how and when can one pack identical copies of this shape into another shape Y?"
http://www.york.cuny.edu/~malk/tidbits/tidbit-geometric-packing.html Who Can Name the Bigger Number? -
An essay by Scott Aaronson on the quest for ever-bigger numbers, from exponentials to Busy Beavers.
http://www.scottaaronson.com/writings/bignumbers.html Number Recreations by Shyam Sunder Gupta -
Features interesting facts about different numbers. Includes favorite related links.
http://www.shyamsundergupta.com/ Mathematik -
Individual pages on different topics in Mathematics. Examples : group theory, dynamical systems theory, geometry or number theory.
http://www.mathematik.com/ Jlpe's Number Recreations Page -
Features original number recreations by the author, such as generalized perfect numbers, digital diversions, diophantine equations, didactic numbers, and number theory.
http://www.geocities.com/windmill96/numrecreations.html Recreational Mathematics -
Links collected at CAMEL, the Canadian Mathematical Society website.
http://camel.math.ca/Recreation/recreation.html The Nine Digits Page -
Puzzles and problems connected with numbers using the digits 1-9.
http://www.worldofnumbers.com/ninedig1.htm Fibonacci numbers and the Pascal triangle -
The relation between Fibonacci numbers and Pascal's triangle. English/German/Serbian.
http://milan.milanovic.org/math/ Math Forum: Algebra Problem of the Week -
View this week's algebra problem or those of previous weeks.
http://mathforum.org/algpow/ Sportlab -
Combines high school and college math topics into sports applications.
http://www.geocities.com/sportlab/ Recreational Mathematics Forum -
A forum for posting messages about math recreations. Hosted at Delphi.
http://forums.delphiforums.com/recmath/ 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.
http://www.geocities.com/ResearchTriangle/System/8956/problems/pyth.htm Eric's Scientific Book List: Recreational Mathematics -
Book list from Eric Weisstein including titles, authors, publishers, prices, page count and some have links to Amazon.com.
http://www.ericweisstein.com/encyclopedias/books/RecreationalMathematics.html The Diamond 16 Puzzle -
New version of the classic puzzle using row/column/quadrant permutations to display symmetries of graphic designs. Has link to a site on the underlying mathematics (Diamond Theory).
http://finitegeometry.org/sc/16/puzzle/ Fast Arithmetic Tips -
Three categories: defensive - know to check an answer, offensive - fast mental calculations, and math magic.
http://www.cut-the-knot.org/arithmetic/rapid/ Mathematical Quotation Server -
Furman University Mathematical Quotation Server - random or searchable math quotes.
http://math.furman.edu/~mwoodard/mqs/mquot.shtml Math Magic By Computer -
Interactive java puzzles and activities in different mathematical topics.
http://www.cut-the-knot.org/Curriculum/index.shtml#magic Gardner Index -
Rough index to the fifteen books containing Martin Gardner's Mathematical Games articles from Scientific American.
http://www.ms.uky.edu/~lee/ma502/gardner5/gardner5.html Mathematical Lego Sculptures -
Designed and built by Andrew Lipson. Images and LDraw files.
http://www.andrewlipson.com/mathlego.htm Recreational Mathematics Topics -
By Steven Dutch. Symmetry, Crystals, Polyhedra and Tilings; Pythagorean triplets and other things about sums of powers; Geometry Classics.
http://www.uwgb.edu/dutchs/RECMATH/recmath.htm Mathematical Quotation Server -
A collection of mathematical quotations culled from many sources. You may conduct a keyword search through the quotation database.
http://math.furman.edu/~mwoodard/mquot.html The Aesthetics of Symmetry -
A brief digression into how people perceive symmetrical patterns -- what makes them boring, interesting, or overly intricate
http://home.earthlink.net/~jdc24/symmetry.htm Look and Say Sequence Generator -
Creates a special kind of summation formula created by John Conway.
http://www.btinternet.com/~se16/js/looknsay.htm Mathematische Basteleien -
Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes, Latticework of Letters. English/German.
http://www.mathematische-basteleien.de/ Final Answers -
Numerous facts including formulas, magic tricks, fallacies, recreations compiled by Dr. Gerald P. Michon.
http://home.att.net/~numericana/answer/ MAA Library List in Recreational Mathematics -
Book list split into categories. Includes title, author, publisher and date information about each book.
http://www.maa.org/BLL/recmath.htm Mathematics Museum (Japan) -
At Mathematics Museum (Japan) you would be surprised how interesting mathematics is. You will find exhibition rooms produced by Japanese researchers and educators.
http://mathmuse.sci.ibaraki.ac.jp/indexE.html How To Manually Find A Square Root -
The way to do find a square root without a calculator.
http://math.arizona.edu/~kerl/doc/square-root.html Recreational and Educational Computing -
A newsletter with programs, including optional supplemental PC disk. All back issues are available. Topics include puzzles and teasers, BASIC programming, letters, graphics, fractals, challenges, recreation, reviews, word-play, humor, tips, solutions, and Mathemagical Black Holes.
http://members.aol.com/DrMWEcker/REC.html Iamond -
A page on polyiamond puzzles. Includes many pages on tessellation.
http://www.mathpuzzle.com/iamond.htm A Mathematician's Aesthetics -
In his classic A Mathematician's Apology, G. H. Hardy likened mathematics to poetry and painting. This site elaborates on Hardy's remark with quotations from Stevens, Klee, Fry, and Focillon. Links to related sites are given.
http://finitegeometry.org/sc/ph/aesthetics.html Mathmos -
Includes puzzles, jokes, quotations, poetry, and FAQs.
http://www.mathmos.net/ Math in the Movies -
A guide to major motion pictures with scenes of real mathematics.
http://world.std.com/~reinhold/mathmovies.html Mudd Math Fun Facts -
An archive of interesting math facts for use in the classroom or just for fun. Browse by subject, difficulty, keywords, or try the "random" feature. Based at Harvey Mudd College.
http://www.math.hmc.edu/funfacts/ Mathematical Induction -
A page of uncommon problems, most closely connected with number theory.
http://www.math.cl/induction.html Table of Numbers Problem -
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).
http://www.alpertron.com.ar/CUADRO.HTM Recreational Mathematics (David Eppstein) -
An extensive list of web resources for recreational math.
http://www.ics.uci.edu/~eppstein/recmath.html One Metaphor Fits All -
Explains Conway's audioactive decay that is generated by a particular kind of sequence. Includes illustrations and related resources.
http://www.btinternet.com/~se16/mhi/ CuriousMath -
Include news, math tricks, methods, facts, trivia, mostly posted by users.
http://www.curiousmath.com/ Cryptarithms Online -
70 brain-teasers; a Primer on Cryptarithmetic; books and links to alphametics on the Web.
http://www.geocities.com/Athens/Agora/2160/ Stunning Friends with Math Magic -
A collection of card tricks, number guessing games, paper and glue magic, and other math exercises.
http://www.cut-the-knot.org/arithmetic/rapid/magic.shtml Famous Curves -
Visual animations of famous curves.
http://www.geocities.com/famouscurves/ Sir Roger Penrose -
An article about him and his interests and contributions to recreational mathematics.
http://www.worldofescher.com/misc/penrose.html Mathematical Diversions -
Mostly original diversions in mathematics and word play.
http://members.aol.com/s6sj7gt/mikehome.htm SimonSingh.net -
Home of Simon Singh: author, journalist and TV producer, specialising in science and mathematics. Cryptography is one of his specialties, and his site has a lot of educational and fun content about codes and codebreaking.
http://www.simonsingh.net/ Maze Classification and Algorithms -
A short description of mazes and how to create them. Definition of different mazetypes and their algorithms.
http://www.astrolog.org/labyrnth/algrithm.htm The Sound of Mathematics -
Algorithmic music determined by mathematics and by the musical preferences of a human. General MIDI files.
http://www.geocities.com/Vienna/9349/ Mathematical Spectrum -
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.
http://www.apt.group.shef.ac.uk/ms.html On the Puzzles with Polyhedra and Numbers -
This is an article on a set of didactical games edited by the Portuguese Mathematical Society (SPM). [PDF]
http://gfm.cii.fc.ul.pt/people/jrezende/jr_poliedros-puzzles_en.pdf The Eugène Strens Recreational Mathematics Collection -
A special collection at the University of Calgary, including the archives of Martin Gardner. There is a searchable online index.
http://www.ucalgary.ca/lib-old/SpecColl/strens.htm Fair Dice -
Includes a complete list of all possible Fair Dice, most of which are not cubes. Includes pictures.
http://www.mathpuzzle.com/Fairdice.htm Mathematical Problems - Problem Solving -
Mathematics Hots (Problems) by Bruno Kevius
http://mathres.kevius.com/problem.html MAT 007 I News -
A newsletter edited by undergraduates of the Department of Mathematics at the University of Toronto. Includes some online copies.
http://www.math.toronto.edu/007/ Roman Numerals -
Includes 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.
http://www.novaroma.org/via_romana/numbers.html Math Forum: 2002 Mathematics Game -
A contest where the contestants have to write all integers from 1 to 100 using only the digits 2,0,0,2 and arithmetic operations.
http://mathforum.org/~judyann/2002/ Origami Mathematics -
Information on the mathematics of paper folding.
http://www.merrimack.edu/~thull/OrigamiMath.html Back to Square One -
Includes description, solutions and other resources on this cube-like puzzle.
http://www.geocities.com/jaapsch/puzzles/square1.htm Critical Math -
Articles and images on recreational math from fractals and magic squares to mathemorchids and Galois.
http://www.gwywyr.com/articles/scimaths/ Properties of Dice -
Polyhedral dice and their properties.
http://hjem.get2net.dk/Klaudius/Dice.htm Math Forum: 2001 Mathematics Game -
A contest that asks to write all integers from 1 to 100 using only the digits 2,0,0,1 and arithmetic operations.
http://mathforum.org/~judyann/2001/ Recmath -
Includes pages on magic squares and polyomino patterns and contains related java applets.
http://www3.sympatico.ca/diharper/ Rubik's Cube Lecture Notes -
Notes on the mathematics of the Rubik's cube.
http://web.usna.navy.mil/~wdj/rubik_nts.htm Mathematical Fiction -
A list of mathematical fictional movies, books, stories, plays and shows. Split into categories including children's books. Can be sorted by mathematical content and literary quality.
http://math.cofc.edu/faculty/kasman/MATHFICT/ David Singmaster: List of Available Material -
Teaching and recreational items in this personal collection.
http://anduin.eldar.org/~problemi/singmast/material.html Eureka -
The annual journal of the Archimedeans, the mathematical society of the University of Cambridge. It regularly contains articles on recreational mathematics.
http://www.archim.org.uk/eureka/ Skytopia - Super Magnet -
A colourful world built entirely using mathematical atoms and molecules. Pictures and animations demonstrate structures colliding and interacting. Animated GIF demonstrations.
http://www.skytopia.com/project/magnet/magnet.html Wade Edward Philpott -
Profile and description of his mathematical games and puzzles.
http://www.gamepuzzles.com/wade.htm Mathematics in Art and Architecture -
An interdisciplinary course on mathematics in art and architecture.
http://www.math.nus.edu.sg/aslaksen/teaching/math-art-arch.shtml Narcissistic Numbers -
Those that are representable, in some way, by mathematically manipulating the digits of the numbers themselves.
http://www.geocities.com/~harveyh/narciss.htm HAKMEM -
A collection of problems from MIT. Work reported herein was conducted at the Artificial Intelligence Laboratory, a Massachusetts Institute of Technology research program.
http://www.inwap.com/pdp10/hbaker/hakmem/hakmem.html
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