| 1. 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.ht... |
| 2. 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/Sys... |
| 3. 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.... |
| 4. Back to Square One |
| Includes description, solutions and other resources on this cube-like puzzle. |
| http://www.geocities.com/jaapsch/puzzles/squa... |
| 5. Critical Math |
| Articles and images on recreational math from fractals and magic squares to mathemorchids and Galois. |
| http://www.gwywyr.com/articles/scimaths/ |
| 6. Cryptarithms Online |
| 70 brain-teasers; a Primer on Cryptarithmetic; books and links to alphametics on the Web. |
| http://www.geocities.com/Athens/Agora/2160/ |
| 7. CuriousMath |
| Include news, math tricks, methods, facts, trivia, mostly posted by users. |
| http://www.curiousmath.com/ |
| 8. David Singmaster: List of Available Material |
| Teaching and recreational items in this personal collection. |
| http://anduin.eldar.org/~problemi/singmast/ma... |
| 9. 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/bo... |
| 10. 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/ |
| 11. 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 |
| 12. Famous Curves |
| Visual animations of famous curves. |
| http://www.geocities.com/famouscurves/ |
| 13. Famous Curves Index |
| Curves you've heard of and curves you haven't, from Astroid to the Witch of Agnesi. |
| http://www-groups.dcs.st-and.ac.uk/~history/C... |
| 14. 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/ |
| 15. Fibonacci numbers and the Pascal triangle |
| The relation between Fibonacci numbers and Pascal's triangle. English/German/Serbian. |
| http://milan.milanovic.org/math/ |
| 16. Final Answers |
| Numerous facts including formulas, magic tricks, fallacies, recreations compiled by Dr. Gerald P. Michon. |
| http://home.att.net/~numericana/answer/ |
| 17. 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/ |
| 18. 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/gar... |
| 19. 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... |
| 20. 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/hakm... |
| 21. 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... |
| 22. Iamond |
| A page on polyiamond puzzles. Includes many pages on tessellation. |
| http://www.mathpuzzle.com/iamond.htm |
| 23. 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/numrecrea... |
| 24. Look and Say Sequence Generator |
| Creates a special kind of summation formula created by John Conway. |
| http://www.btinternet.com/~se16/js/looknsay.h... |
| 25. 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 |
| 26. 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/ |
| 27. 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/ |
| 28. 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/ |
| 29. Math Forum: Algebra Problem of the Week |
| View this week's algebra problem or those of previous weeks. |
| http://mathforum.org/algpow/ |
| 30. Math Magic By Computer |
| Interactive java puzzles and activities in different mathematical topics. |
| http://www.cut-the-knot.org/Curriculum/index.... |
| 31. Math in the Movies |
| A guide to major motion pictures with scenes of real mathematics. |
| http://world.std.com/~reinhold/mathmovies.htm... |
| 32. Mathematical Diversions |
| Mostly original diversions in mathematics and word play. |
| http://members.aol.com/s6sj7gt/mikehome.htm |
| 33. 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/ |
| 34. Mathematical Induction |
| A page of uncommon problems, most closely connected with number theory. |
| http://www.math.cl/induction.html |
| 35. Mathematical Lego Sculptures |
| Designed and built by Andrew Lipson. Images and LDraw files. |
| http://www.andrewlipson.com/mathlego.htm |
| 36. Mathematical Problems - Problem Solving |
| Mathematics Hots (Problems) by Bruno Kevius |
| http://mathres.kevius.com/problem.html |
| 37. Mathematical Quotation Server |
| Furman University Mathematical Quotation Server - random or searchable math quotes. |
| http://math.furman.edu/~mwoodard/mqs/mquot.sh... |
| 38. 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 |
| 39. 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 |