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Famous Curves Index  - Curves you've heard of and curves you haven't, from Astroid to the Witch of Agnesi. |
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The Aesthetics of Symmetry - A brief digression into how people perceive symmetrical patterns -- what makes them boring, interesting, or overly intricate |
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Amazing Spiro - An applet for making spirograph graphs. Includes options for size, color and shape. Allows saving of completed image. |
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Back to Square One - Includes description, solutions and other resources on this cube-like puzzle. |
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Critical Math - Articles and images on recreational math from fractals and magic squares to mathemorchids and Galois. |
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Cryptarithms Online - 70 brain-teasers; a Primer on Cryptarithmetic; books and links to alphametics on the Web. |
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CuriousMath - Include news, math tricks, methods, facts, trivia, mostly posted by users. |
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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). |
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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. |
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Eureka - The annual journal of the Archimedeans, the mathematical society of the University of Cambridge. It regularly contains articles on recreational mathematics. |
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Fair Dice - Includes a complete list of all possible Fair Dice, most of which are not cubes. Includes pictures. |
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Fast Arithmetic Tips - Three categories: defensive - know to check an answer, offensive - fast mental calculations, and math magic. |
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Final Answers - Numerous facts including formulas, magic tricks, fallacies, recreations compiled by Dr. Gerald P. Michon. |
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Fun With Mathematics - Includes pages on the topics of primes, fibonacci numbers, PI computation, data encryption and links to calculator programs. |
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Gardner Index - Rough index to the fifteen books containing Martin Gardner's Mathematical Games articles from Scientific American. |
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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?" |
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HAKMEM - A collection of problems from MIT. Work reported herein was conducted at the Artificial Intelligence Laboratory, a Massachusetts Institute of Technology research program. |
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Iamond - A page on polyiamond puzzles. Includes many pages on tessellation. |
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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. |
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MAT 007 I News - A newsletter edited by undergraduates of the Department of Mathematics at the University of Toronto. Includes some online copies. |
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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. |
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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. |
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Mathematical Quotation Server - A collection of mathematical quotations culled from many sources. You may conduct a keyword search through the quotation database. |
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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. |
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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. |
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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. |
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Mathematik - Individual pages on different topics in Mathematics. Examples : group theory, dynamical systems theory, geometry or number theory. |
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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. |
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Mathmos - Includes puzzles, jokes, quotations, poetry, and FAQs. |
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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. |
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Narcissistic Numbers - Those that are representable, in some way, by mathematically manipulating the digits of the numbers themselves. |
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One Metaphor Fits All - Explains Conway's audioactive decay that is generated by a particular kind of sequence. Includes illustrations and related resources. |
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Recmath - Includes pages on magic squares and polyomino patterns and contains related java applets. |
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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. |
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Recreational Mathematics Topics - By Steven Dutch. Symmetry, Crystals, Polyhedra and Tilings; Pythagorean triplets and other things about sums of powers; Geometry Classics. |
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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. |
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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. |
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Sir Roger Penrose - An article about him and his interests and contributions to recreational mathematics. |
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Skytopia - Super Magnet - A colourful world built entirely using mathematical atoms and molecules. Pictures and animations demonstrate structures colliding and interacting. Animated GIF demonstrations. |
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The Sound of Mathematics - Algorithmic music determined by mathematics and by the musical preferences of a human. General MIDI files. |
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Spirocharts - A windows application that creates mathematically precise spirograph drawings; savable as images. |
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Sportlab - Combines high school and college math topics into sports applications. |
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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). |
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