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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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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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Includes description, solutions and other resources on this cube-like puzzle.
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Articles and images on recreational math from fractals and magic squares to mathemorchids and Galois.
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70 brain-teasers; a Primer on Cryptarithmetic; books and links to alphametics on the Web.
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Include news, math tricks, methods, facts, trivia, mostly posted by users.
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Teaching and recreational items in this personal collection.
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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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Includes a complete list of all possible Fair Dice, most of which are not cubes. Includes pictures.
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Visual animations of famous curves.
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Curves you've heard of and curves you haven't, from Astroid to the Witch of Agnesi.
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Three categories: defensive - know to check an answer, offensive - fast mental calculations, and math magic.
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Relacije izmedju Paskalovog trougla i Fibonacijevih i Lukasovih brojeva. Fibonacijevi brojevi i zlatni presek. Paskalov trougao drugog reda.
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Numerous facts including formulas, magic tricks, fallacies, recreations compiled by Dr. Gerald P. Michon.
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Rough index to the fifteen books containing Martin Gardner's Mathematical Games articles from Scientific American.
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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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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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The way to do find a square root without a calculator.
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A page on polyiamond puzzles. Includes many pages on tessellation.
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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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Creates a special kind of summation formula created by John Conway.
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Book list split into categories. Includes title, author, publisher and date information about each book.
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A newsletter edited by undergraduates of the Department of Mathematics at the University of Toronto. Includes some online copies.
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A contest that asks to write all integers from 1 to 100 using only the digits 2,0,0,1 and arithmetic operations.
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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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Past archive and solutions. Receive help from a mentor. Paid membership required to view problems.
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Interactive java puzzles and activities in different mathematical topics.
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A guide to major motion pictures with scenes of real mathematics.
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Mostly original diversions in mathematics and word play.
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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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A page of uncommon problems, most closely connected with number theory.
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Designed and built by Andrew Lipson. Images and LDraw files.
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Mathematics Hots (Problems) by Bruno Kevius
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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 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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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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An interdisciplinary course on mathematics in art and architecture.
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Individual pages on different topics in Mathematics. Examples : group theory, dynamical systems theory, geometry or number theory.
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Eine Sammlung von mathematischen Basteleien zu unterschiedlichen geometrischen Themen.
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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.
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Includes puzzles, jokes, quotations, poetry, and FAQs.
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A short description of mazes and how to create them. Definition of different mazetypes and their algorithms.
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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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Those that are representable, in some way, by mathematically manipulating the digits of the numbers themselves.
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Features interesting facts about different numbers. Includes favorite related links.
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This is an article on a set of didactical games edited by the Portuguese Mathematical Society (SPM).
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Explains Conway's audioactive decay that is generated by a particular kind of sequence. Includes illustrations and related resources.
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Information on the mathematics of paper folding.
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Polyhedral dice and their properties.
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Includes pages on magic squares and polyomino patterns and contains related java applets.
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Links collected at CAMEL, the Canadian Mathematical Society website.
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An extensive list of web resources for recreational math.
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A forum for posting messages about math recreations. Hosted at Delphi.
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By Steven Dutch. Symmetry, Crystals, Polyhedra and Tilings; Pythagorean triplets and other things about sums of powers; Geometry Classics.
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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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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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Notes on the mathematics of the Rubik's cube.
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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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An article about him and his interests and contributions to recreational mathematics.
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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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Fun math stuff, including computing pi, perfect numbers, Fibonacci numbers, the tesseract, a look into 4-dimensional space. Includes family photos and trivia information about the author.
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A windows application that creates mathematically precise spirograph drawings; savable as images.
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A java applet for creating Spirograph images.
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Combines high school and college math topics into sports applications.
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A collection of card tricks, number guessing games, paper and glue magic, and other math exercises.
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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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A brief digression into how people perceive symmetrical patterns -- what makes them boring, interesting, or overly intricate
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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 special collection at the University of Calgary, including the archives of Martin Gardner. There is a searchable online index.
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Puzzles and problems connected with numbers using the digits 1-9.
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Algorithmic music determined by mathematics and by the musical preferences of a human. General MIDI files.
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Book list including titles, authors, publishers, prices, page count and some have links to Amazon.com.
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Profile and description of his mathematical games and puzzles.
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A special collection at the University of Calgary Library.
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An essay by Scott Aaronson on the quest for ever-bigger numbers, from exponentials to Busy Beavers.
