21. This Is A Problem I Encouter In Recreational Math By Kevin Liem This is a problem I encouter in recreational math by Kevin Liem. reply to this message post a message on a new topic Back to sci.math.numanalysis http://mathforum.org/epigone/sci.math.num-analysis/kahsmimpe

This is a problem I encouter in recreational math by Kevin Liem reply to this message post a message on a new topic Back to sci.math.num-analysis Subject: This is a problem I encouter in recreational math Author: kliem@ipoline.com Date: The Math Forum

22. [HM] Queries On Russian Sources In Recreational Math. By Antreas P. Hatzipolakis HM Queries on Russian Sources in recreational math. by Antreas P. Hatzipolakis. Subject HM Queries on Russian Sources in recreational math. http://mathforum.org/epigone/historia_matematica/snahgunshend

[HM] Queries on Russian Sources in Recreational Math. by Antreas P. Hatzipolakis reply to this message post a message on a new topic Back to Historia-Matematica Discussion Group Subject: [HM] Queries on Russian Sources in Recreational Math. Author: xpolakis@otenet.gr Date: Tue, 20 Apr 1999 15:32:26 -0300 (GMT+3) Following is an article by Prof. David Singmaster. It is long, but interesting! Other math-history-related articles by DS: CHRONOLOGY OF RECREATIONAL MATHEMATICS http://anduin.eldar.org/~problemi/singmast/recchron.html QUERIES ON "SOURCES IN RECREATIONAL MATHEMATICS" http://anduin.eldar.org/~problemi/singmast/queries.html QUERIES ON ORIENTAL SOURCES IN RECREATIONAL MATHEMATICS http://anduin.eldar.org/~problemi/singmast/chinarec.html QUERIES ON MIDDLE-EASTERN SOURCES IN RECREATIONAL MATHEMATICS http://anduin.eldar.org/~problemi/singmast/mideastr.html THE UNREASONABLE UTILITY OF RECREATIONAL MATHEMATICS http://anduin.eldar.org/~problemi/singmast/ecmutil.html LIST OF AVAILABLE MATERIAL http://anduin.eldar.org/~problemi/singmast/material.html

23. Chris Caldwell, Selected Publications C. Caldwell and H. Dubner, Primes in pi, J. recreational math., to appear. C. Caldwell, New largest known prime, J. recreational math., 281 (199697) 17. http://www.utm.edu/~caldwell/papers.html

Chris Caldwell Selected Publications Home Page Current Projects Prime List Prime Curios! Prime Links Prime Glossary ... Prime References Prime Numbers The Prime Pages Largest Known Submit Primes Finding Primes ... Prime Lists Other Graph Theory Primal Sounds MathSciNet Personal Pages Publications Office Hours FBC Martin Baptist Faith... School Pages Banner Library Search C. Caldwell and Y. Gallot , "On the primality of n! and p Math. Comp. MR 2002g:11011 Abstract available Annotation available C. Caldwell and G. L. Honaker, Jr. , "Is unique?," Math. Spectrum :2 (2000/2001) 3436. Preprint available online at http://www.utm.edu/~caldwell/preprints/ C. Caldwell and H. Dubner , "Primes in pi," J. Recreational Math. , to appear. G. L. Honaker, Jr. and C. Caldwell , "Palindromic prime pyramids," J. Recreational Math. Annotation available C. Caldwell and H. Dubner , "Unique period primes," J. Recreational Math. C. Caldwell , "Unique (period) primes and the factorization of cyclotomic polynomial minus one," Mathematica Japonica MR 99b:11139 Abstract available C. Caldwell

24. Prime Page References Caldwell87 C. Caldwell, Truncatable primes, J. recreational math., 191 (1987) 3033. 331, J. recreational math., 214 (1989) 299-304. http://www.utm.edu/research/primes/references/refs.cgi?author=Caldwell

25. [Tutor] A Recreational Math Problem For Useless Python Tutor A recreational math problem for Useless Python. Danny Yoo dyoo@hkn.eecs.berkeley.edu Sun, 12 Aug 2001 181901 0700 (PDT) http://mail.python.org/pipermail/tutor/2001-August/007973.html

[Tutor] A recreational math problem for Useless Python Danny Yoo dyoo@hkn.eecs.berkeley.edu Sun, 12 Aug 2001 18:19:01 -0700 (PDT) Previous message: [Tutor] Re: Tutor digest, Vol 1 #1015 - 1 msg Next message: [Tutor] A recreational math problem for Useless Python Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Previous message: [Tutor] Re: Tutor digest, Vol 1 #1015 - 1 msg Next message: [Tutor] A recreational math problem for Useless Python Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

26. [Tutor] A Recreational Math Problem For Useless Python Tutor A recreational math problem for Useless Python. Danny Yoo dyoo@hkn.eecs.berkeley.edu Tue, 14 Aug 2001 163033 0700 (PDT) http://mail.python.org/pipermail/tutor/2001-August/007997.html

[Tutor] A recreational math problem for Useless Python Danny Yoo dyoo@hkn.eecs.berkeley.edu Tue, 14 Aug 2001 16:30:33 -0700 (PDT) Previous message: [Tutor] A recreational math problem for Useless Python Next message: [Tutor] A recreational math problem for Useless Python Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Well I know this is not a very good solution - but it is my first attempt. I used the random module to create the number sets ad that Your solution is a lot better than mine; I made mine especially Useless by using a genetic algorithm. The heuristic I'm using doesn't work well at all... *sigh* I'll post the code up to Rob later tonight after I clean up the code and don my bughunting cap. Previous message: [Tutor] A recreational math problem for Useless Python Next message: [Tutor] A recreational math problem for Useless Python Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

27. Recreational Math recreational math. by Bernie Freidin © 19992000. These Another recreational math interest of mine has been square-packing. Here http://bork.hampshire.edu/~bernie/math/

28. Journal Of Recreational Mathematics Journal of recreational mathematics. Update 1/8/2001 Greetings and Happy New Year to all! The Journal of recreational mathematics is published by the. http://www.ashbacher.com/jrecmath.stm

Journal of Recreational Mathematics Update 1/8/2001 Greetings and Happy New Year to all! By now, you should have received your 30(1) copies of Journal of Recreational Mathematics. I have received all of the author proofs for 30(2) and they were passed on to Baywood a few weeks ago. While there will be some delay due to the holidays, issue 30(2) should be arriving within a few weeks. The material for 30(3) was selected and sent to Baywood some time ago, so I expect author proofs to be arriving very soon. All material for 30(4) has been selected and it will be sent to Baywood today. Once again, I ask that if you have a paper that was accepted by Joe Madachy and have not communicated that to me, please do so as soon as possible. Send a hard copy plus any correspondence indicating that he accepted it. - Charles Ashbacher Information concerning submitted manuscripts Information concerning the editorial transfer ... Volume 30(2) ISSN 0022-412X Editor Emeritus Joseph S. Madachy Editors Charles Ashbacher Manuscript Content Editor Book Reviews Editor Charles Ashbacher Technologies Box 294 119 Northwood Drive Hiawatha, IA 52233 USA

29. Recreational Math Workshop The workshop is intended for teachers of Grades 112. Participants will work in small groups to prepare recreational math Units suitable to their grade level. http://www.millersv.edu/~kkittapp/workshop.html

Recreational Mathematics Workshop In the Summer, I offer a hands-on workshop on Recreational Mathematics for the Classroom (EDW 526). The workshop is intended for teachers of Grades 1-12. Participants will work in small groups to prepare Recreational Math Units suitable to their grade level. They would then present the units to the class of workshop participants. Participants will be given necessary guidance to prepare the Units. Each participant will also make one individual presentation on a recreational math topic of his/her choice. Topics are drawn from arithmetic, geometry, statistics, etc. They include mathematical magic tricks (with numbers, geometrical figures, ropes, etc), construction of geometrical figures, mathematical games and so on. Kit Kittappa's Page Math Department Page Millersville University Page

30. Experts@Dal 2517 Fax (902) 4941472, 1 Faculty member(s) matching topic recreational math . Nowakowski, Richard J. - Professor - Mathematics http://experts.dal.ca/topicsearch2.cfm?keyword=Recreational Math

31. Cube Lovers: Recreational Math next prev up Date Tue, 20 Jan 87 144700 0500 (EST) next prev up From Peter Beck beck@clstr1.decnet ~~~ ~up Subject recreational math http://www.math.rwth-aachen.de/~Martin.Schoenert/Cube-Lovers/Peter_Beck__recreat

Date: Tue, 20 Jan 87 14:47:00 -0500 (EST) From: Peter Beck beck@clstr1.decnet Subject: recreational math BOOKS: Singmaster is editing a series of books for Oxford University Press on Recrreational Mathematics and is requesting input on the following: 1) " I (Singmaster) have embarked on a project to find the sources of classical problems in recreational mathematics. ..... The initial object of this project was to produce a book of sources, translated into english with annotation, for .... However, it now appears that the first stage must be the prpearation of an annotated bibliography of the material. ... draft of paper which outlines the project and some of the material is available. I would be delighted to hear from anyone interested in this project, particularly anyone able to provide info." 2) "I am also compiling a list of mathematical monuments and have a draft article on this." ADDRESS; DAVID SINGMASTER, POLYTECHNIC OF THE SOUTH BANK, LONDON, SE1 OAA, UK

32. Math Digest The line between recreational math and serious math is a blurry one. Gardner sees recreational math as potentially educational. http://www.ams.org/new-in-math/mathdigest/199811-rec-math.html

Mathematical Digest Short Summaries of Articles about Mathematics in the Popular Press "A Quarter Century of Recreational Mathematics," by Martin Gardner. Scientific American , August 1998. The line between recreational math and serious math is a blurry one. Math is considered recreational if it has a playful aspect that can be understood and appreciated by nonmathematicians. At times, these types of problems generate simple and elegant solutions, but they can also lead to mind-bending paradoxes, bewildering magic tricks, and topological curiousities such as Mobius bands and Klein bottles. It is in this world that Martin Gardner lives. From 1956 to 1981, he wrote Scientific American's column "Mathematical Games." He took no math courses in college, but as a journalist who loves math, he has been able to coax interesting problems out of professional mathematicians. Early on he worked with Solomon Golomb, who studied polyominoes, shapes formed by joining identical squares along their edges (the domino being a simple example). In 1977, MIT's Ronald Rivest allowed Gardner to be the first to reveal the "public-key" cipher system that Rivest invented. At times, seemingly purely recreational problems have turned serious. Magic squares, arrangements of numbers that add up to the same number in every row, column, or diagonal, have always been a popular part of recreational math. Extending this idea, retired railroad clerk Clifford Adams devised a magic hexagon. After receiving it in the mail, Gardner passed it on to mathematician Charles Trigg, who proved that Adams' elegant pattern was the only possible magic hexagon of any size.

33. Mathematics Of Computation MR 97c11004. 12. H. Dubner, The development of a powerful lowcost computer for number theory applications, J. recreational math. 18 (1985-86), 81-86. 13. http://www.ams.org/mcom/2002-71-237/S0025-5718-01-01315-1/home.html

Journals Home Search Author Info Subscribe ... Help ISSN 1088-6842 (e) ISSN 0025-5718 (p) Previous issue Table of contents Next issue Articles in press ... All issues On the primality of and Author(s): Chris K. Caldwell; Yves Gallot. Journal: Math. Comp. MSC (2000): Primary 11A41; Secondary 11N05, 11A51 Posted: May 11, 2001 Retrieve article in: PDF DVI TeX PostScript ... Additional information Abstract: For each prime , let be the product of the primes less than or equal to . We have greatly extended the range for which the primality of and are known and have found two new primes of the first form ( ) and one of the second ( ). We supply heuristic estimates on the expected number of such primes and compare these estimates to the number actually found. References: E. Bach and J. Shallit, Algorithmic number theory , Foundations of Computing, vol. I: Efficient Algorithms, The MIT Press, 1996. MR D. Bailey

34. Puzzles (Integer Programming In Recreational Mathematics) Puzzle Page One, Puzzle Page Two, Puzzle Page Three, Puzzle Page Four, Papers, Five, Lights On, Links, http://www.chlond.demon.co.uk/academic/puzzles.html

35. Purplemath - Your Algebra Resource You won t find math jokes or recreational math sites here. Instead, check this listing for graph paper, calculator help, worksheets, and more. http://www.purplemath.com/

Purplemath – Your Algebra Resource For Purplemath on CD for your home computer, look here School site licensing available About Purplemath About the author Contact Us Paid tutoring through Purplemath Having trouble printing Need help with algebra? You've found the right place! Lessons: "How do you really do this stuff?" Purplemath's algebra lessons are written with the student in mind. These lessons emphasize the practicalities rather than the technicalities, demonstrating dependable techniques, warning of likely "trick" questions, and pointing out common mistakes. The lessons are cross-referenced to help you find related material. Internet listings: "Yes, Virginia; there really

36. Centre For Innovation In Mathematics Teaching - Recreational Mathematics TEACHING. A Guide to Sources of Information about recreational mathematics. Other sites concerned with recreational mathematics. For http://www.ex.ac.uk/cimt/puzzles/recmath.htm

CENTRE for INNOVATION in MATHEMATICS TEACHING A Guide to Sources of Information about Recreational Mathematics Recreational Mathematics is the term used to cover games, puzzles and other activities in which mathematical principles are necessary in some way: to create them, to play them, to analyse them or to solve them. Starting points can be found at this site on the following topics: Pentominoes Tangrams Dissections Sliding-block puzzles ... Games Other sites concerned with Recreational Mathematics For Magic Squares try these sites (all in the US) - this one or this one or this one For Magic Cubes try this (US) site A major guide to all sorts of mathematics can be found here in Italy. Or at this site (in the USA) which is concerned only with Recreational Mathematics. Find out about the history of Recreational Mathematics from Scotland. Go to this site (in Wales) to see how mathematics links with Art. Here are two very good sites on Mazes (from the UK) and Mazes (from the USA) This site (in the USA) is a very good starting point for Dissection enthusiasts.

37. Recreational Math recreational math. This page is dedicated to mathematical amusements of all sorts, and to problems I find that are intriguing because http://lamar.colostate.edu/~sbenoit/recreation.html

Recreational Math This page is dedicated to mathematical amusements of all sorts, and to problems I find that are intriguing because they seem counter-intuitive or have an unexpected solution. For example: Old Boniface he took his cheer, Then he drilled a hole through a solid sphere - Clear through the center, straight and strong. And the hole was just six inches long. Now, tell us when the end was gained What volume of the sphere remained? It sounds like we haven't told enough, But that's all you need - and it isn't tough! From "The Surprise Attack in Mathematical Problems", L.A. Graham See my solution The Math Puzzler The puzzler works like this: There is a math question posted below for you to puzzle over. When you have an answer, send it to me in an email. If your answer is right, I'll send you back a code to let you access the next puzzler in the series. I'll keep extending the series of puzzles as I find or invent new ones, but I'll maintain a list of people who have solved any puzzles, and post a "hall of fame" for those who have solved the most. Puzzler #1 Prove that + ... + n

38. Homeschool Information Library - Older Homeschoolers - Index math and everyday accounting * Math applications (also called handson or real life math) * Mental math * recreational math (math games) * Probability and http://www.home-ed-magazine.com/INF/OH/oh_cc.math.html

Homeschool Information Library HEM's Information Library Index Older Homeschoolers Index Rethinking Midschool/High School Math From the Older Kids column, by Cafi Cohen, originally published in the January-February 1997 issue of Home Education Magazine. M-A-T-H. What thoughts come to mind with the word MATH? One of the three R's. A government school "required subject," according to many state statutes and some local regulations. An essential topic in any homeschool. Past that point, what official guidance are you given for teaching math? Often, none. What you cover and how you cover it is up to you. In the absence of specific directions, many homeschooling families pursue what I call School Math. School Math is how most parents studied math when they attended school; and it is how most schools still teach math. School Math involves textbooks, workbooks, and exams. Older kids pursuing School Math study the subject sequentially in other words, arithmetic, followed by algebra, then geometry, second year algebra, trigonometry, and so on. Those using a School Math program must always "show all the steps" and reason exactly like the author of the text reasons. Alternate approaches to problem solving are unacceptable. Getting the right answer is emphasized, often to the exclusion of understanding the process. School Math texts often include unrealistic problems. Typical is the following. A 20-ft. telephone pole falls across a street and the two ends extend one foot and three feet either side of the street. How wide is the street?

39. Mathematics: Intellectual And Recreational The PI (p) Files Now includes a Facts and Figures page all about Pi. recreational math . You Have All the Money you will ever Need! http://www.geocities.com/thestarman3/math/

Mathematics (math e the systematic study of forms, figures, and quantities; the properties, measurement, and the relationships between them, expressed in both numbers and symbols A collective word for all the procedures and operations of related "branches" which have historically arisen from mathematics; such as, Arithmetic, Geometry, Algebra, Trigonometry, Calculus (Differential and Integral), Set Theory, Boolean Logic, Statistics, and Topology. Often used to describe or speak of the mathematical aspects of various sciences , such as the mathematics of physics. 1350-1400; MiddleEnglish mathematic from the Latin math e matica from the Greek math e matik téchn e ) scientific (craft), equivalent to math e mat- (the singular of máth e ma ) science or knowledge -ik e fem. of -ikos -ic "The universe is a book open for us to gaze upon, but it cannot be understood unless one first learns its language, the language of Mathematics; written in numbers and geometric figures, without which it is impossible to understand a single word of it. " Il Saggiatore OK, pull out some

40. Math Chess - EFront at BCPS library (UK Seek Velucchi) at L Italia Scacchistica (Chiavi Velucchi, Nel sito L Italia Scacchistica) at IP in recreational mathematics 6 http://www.velucchi.it/mathchess/

eMail mathchess@velucchi.it fax +39.05061431159 some of my prehistorical Web pages Internet Archive hosted) at : www.cli.di.unipi.it/~velucchi www.geocities.com/SiliconValley/9174 www.geocities.com/CapeCanaveral/8499 www.geocities.com/CapeCanaveral/1904 ... anduin.eldar.org/~problemi bio/bibliographycal notes www.geocities.com/Colosseum/Field/4530/mv.htm leoncini.freeservers.com/velucchi.html www.johnrausch.com/PuzzleCollectors/000000b0.htm www.chessworld.org/V.htm (Seek: Velucchi at Cambridge University Library (UK - Search by Author: Velucchi ) :: at State Library of Victoria (Australia - Search Author: Velucchi ) :: at The On-Line Encyclopedia of Integer Sequences (Enter a Word: Velucchi ) :: at Eric Weisstein's World of Mathematics PDB - Chess Problem Database Server (Enter: A='Velucchi' ) :: at KB - Koninklijke Bibliotheek - National library of the Netherlands (The Hague - NL) :: at .Zip PBM format) :: at BCPS library (UK - Seek: Velucchi ) :: at L'Italia Scacchistica (Chiavi: Velucchi , Nel sito:

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