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  1. Finding the Value of Pi - Isaac Reed
    Throughout the history of civilization various mathematicians have been concerned with discovering the value of and different expressions for the ratio of the circumference of a circle to its diameter. more>>

  2. Pi = 3.14159... - Math Forum, Ask Dr. Math FAQ
    What is Pi? Who first used Pi? How do you find it? How many digits is it? more>>

  3. The Pi Pages - Centre for Experimental and Constructive Mathematics (CECM)
    "Pi is one of the few concepts in mathematics whose mention evokes a response of recognition and interest in those not concerned professionally with the subject. It has been a part of human culture and the educated imagination for more than twenty five hundred years...." Links to many sources of information on pi: Story of the history of the computation of Pi; Current records of computation; People involved in the computation of Pi in recent years; How to Compute 1 Billion Digits of Pi, the 100 Billionth Binary Digit of Pi, Pi and the AGM, The Quest for Pi, Recognizing a Number, Experimental Pi; Pi News; Pi on the net - The New Pi, From Number to Formula, The Miraculous Pi, The Passion for Pi, A Question of Numbers; Pi Files. more>>

  4. Pi Through the Ages - MacTutor Math History Archives
    A history of pi: the Rhind papyrus (Egypt), Ptolemy, Tsu Ch'ung Chi, al'Khwarizmi, Al'Kashi, Viet, Romanus, Van Ceulen, Gregory, Shanks, Lambert, Euler, Buffon, and many more, with other Web sites and 30 references (books/articles). more>>

  5. Yahoo! Science: Mathematics: Numerical Analysis: Numbers: Specific Numbers: Pi - Yahoo! Inc.
    A searchable collection of approximately 100 WWW pages having to do with Pi, in the following categories: Calculating Pi; Clubs; Decimal Digits; History; Holidays; Mnemonics; Poems; Search Engines; Web Directories. more>>

  All Sites - 112 items found, showing 1 to 50

  1. 3.1415926... - TWO-N, INC.
    This visualization of the first four million decimal digits of π shows each of the digits 0-9 as a different colored pixel. Slide the navigator down to see the numeric "snow" representing the digits 500,001 through 4,000,000; search for any number ...more>>

  2. 42eXplore - Annette Lamb and Larry Johnson
    Web projects that offer definitions, activities, four good starting points, and many more links and resources for thematic topics such as charts and graphs; codes, ciphers and secret messages; fractals, tessellations, geometric shapes, and figures; number ...more>>

  3. 5 Numbers - Simon Singh and Marcus du Sautoy, BBC Radio 4
    Web pages and Real Audio Music downloads of fifteen minute-long radio broadcasts that take a "quirky look" at zero, pi, the golden ratio, i, and infinity. "Hear about the stark reality behind the imaginary number, try a slice of pi, find out about the ...more>>

  4. Activities & Information Supporting Pi Day Celebration - Carolyn M. Morehouse
    Lesson plan, songs, trivia quiz, and refreshments sign-up sheet for a Pi Day celebration. Hosted by the Math Forum's Teacher Exchange. ...more>>

  5. Advanced Topics in Mathematics - Anthony Beckwith
    Page for a high school course exploring fractals, the Global Positioning System, number theory, topology, chaos theory, and the history of mathematics. Syllabus and brief description of each topic. ...more>>

  6. Algebra (MathPages) - Kevin Brown
    More than 50 "informal notes" by Kevin Brown on algebra. Kummer's Objection; irreducibility criteria, multiple linear regression, string algebra, characteristic polynomial of a matrix, iterated means, sums of powers, polynomials from Pascal's Triangle, ...more>>

  7. America's Favorite Number (Math Chat) - Frank Morgan, MAA Online
    Math Chat invited each reader to send in a number. The most commonly submitted number, with the best explanation of why, wins. Answer: In a tight race between 7 and pi, pi wins by a single vote... ...more>>

  8. Annual Pi Day - The Exploratorium, San Francisco, CA
    "Founded by the the Exploratorium's own Prince of Pi, physicist Larry Shaw, Pi Day has become an international holiday, celebrated live and online all around the world." Read a brief history of pi; find activities for cutting π and wearing π; and ...more>>

  9. Arctangent Formulas for Pi - Roy Williams
    What is a reasonable way to compute Pi? Methods that have been chosen for many of the groundbreaking digitstorms in the past have been based on arctangent formulae. ...more>>

  10. The Area of a Circle (SMILE) - Edwina R. Justice, Gunsaulus Academy
    A grade 8 lesson designed to teach the relation between circumference and diameter and how that relation, called pi, is used in the formula for the area of a circle. From the Geometry and Measurement section of a collection of almost 200 single concept ...more>>

  11. Basic Ideas in Greek Mathematics - Michael Fowler; University of Virginia
    Lecture notes from a course entitled "Galileo and Einstein." Nailing down the square root of 2. Zeno's paradoxes: Achilles and the tortoise. Proving an arrow can never move - analyzing motion, the beginning of calculus. How Archimedes calculated Pi to ...more>>

  12. Bonsonhos HomePage - David Salvado
    See and learn about trigonometry with the freeware program Círculo Trigonométrico 2.0. Also a way of calculating Pi. Veja e aprenda o que é a trigonometria com o programa freeware Círculo Trigonométrico 2.0. Aprenda ...more>>

  13. Buffon's Needle - Michael J. Hurben
    A Java applet that simulates a Monte Carlo method for the estimation of the value of pi, 3.14159265... The user controls the speed of simulating the dropping of up to 100,000 needles or pins on equally spaced parallel lines, while a bar graph displays ...more>>

  14. Buffon's Needle (MSTE) - George Reese; University of Illinois at Urbana-Champaign (UIUC)
    Buffon's Needle, first stated in 1777, is one of the oldest problems in the field of geometrical probability. It involves dropping a needle on a lined sheet of paper and determining the probability of the needle crossing one of the lines on the page. ...more>>

  15. Calculus graphics - Douglas N. Arnold; Institute for Mathematics and its Applications
    Excerpts from a collection of graphical demonstrations developed for a class in first year calculus in the McAllister Technology Classroom. Derivatives and differentials; Computing the volume of water in a tipped glass; Archimedes' calculation of pi; ...more>>

  16. A chronology of pi - MacTutor Math History Archives
    Pre-computer calculations of pi, from the Rhind papyrus through Ferguson (1946); computer calculations from Ferguson (1947) through Kanada, Takahashi (Sept 1999). With references and other related web sites. ...more>>

  17. Circles - Diameter, Circumference, Radius and the Discovery of Pi (SMILE) - Kathleen Ryan, Randolph Magnet School
    A 7th grade lesson designed to help students identify and measure the diameter, circumference, and radius of a circle. The students discover the approximate value of pi through the relation between the diameter and circumference. From the Geometry and ...more>>

  18. A Common Book of Pi - Neal Carothers
    A brief history of extended precision approximations of pi, including Archimedes' method for estimating pi, a proof that pi is irrational, a page full of formulas used to estimate pi over the centuries, and a brief look at a modern algorithm used to compute ...more>>

  19. Connect with Music - Finn, Rudolph, O'Malley, Frankel, Ordway, and Langol
    Thirty free interdisciplinary lesson plans that use multimedia, music, and technology to aid in the instruction of Language Arts, Mathematics, and Science at the middle school level. Lesson plans include comprehensive scoring rubrics, links to standards ...more>>

  20. Des Trucs et des Maths - Philippe Picart
    Sur le nombre pi; le nombre d'or; le Rubik's cube; des ressources à télécharger; et "des trucs de maths divers," comme un JavaScript qui répond à la question "Quel jour de la semaine es-tu né?" Avec un coins des ...more>>

  21. The Digit Connection - Lizzie
    A tribute to the number pi through music, poetry, and fiction. (Meet Sailor Pi!) Also includes a brief history of pi with some ways to calculate it, a quote collection, and ways to celebrate the number - even if it's not Pi Day. ...more>>

  22. Educational Interests - Keith Lynn
    See, in particular, Lynn's Math Modeling Project, which features Java applets to produce quadratic and sine examples; and Dynamics Project, on the Julia and Mandelbrot sets. ...more>>

  23. Encarta Online - Microsoft Corporation
    Browse or search for math lessons and activities for K-12 students and teachers, from problem solving to probability and more. ...more>>

  24. Eskimo Pi - Keith Devlin (Devlin's Angle)
    "As everyone knows, in the last century, the State of Indiana passed a law legislating the value of pi to be 3. Well, perhaps it's a bit of an exaggeration to say that everyone knows it, but most people do. But that alone is very odd, since it is not ...more>>

  25. Euclid's Algorithm, Heron's Algorithm, Calculation of Pi (MSTE) - Kyte, Moore, Finch; University of Illinois at Urbana-Champaign (UIUC)
    Problem (by Hans-Georg Weigand): Euclid's Algorithm gives you the greatest common divisor of two natural numbers; explain the algorithm. Given two numbers (e.g. 121 and 33), calculate the gcd(121,33) (in EXCEL you need the "if-command"). Heron's Algorithm ...more>>

  26. General Mathematics, N-Z (Funk & Wagnalls Multimedia Encyclopedia) - Lycos Zone: Mathematics
    Short articles on basic mathematics, including biographical information about mathematicians, from John Napier to Zeno of Elea. ...more>>

  27. Graphics for the Calculus Classroom (Java version) - Douglas N. Arnold; Institute for Mathematics and its Applications
    Excerpts with Java animations from a collection of graphical demonstrations developed for first year calculus. Includes: Differentials and differences, computing the volume of water in a tipped glass, Archimedes' calculation of pi, how the ball bounces, ...more>>

  28. HAKMEM - Beeler, Gosper, Schroeppel; Artificial Intelligence Laboratory, MIT
    A list of math and computer-related problems, unsolved in 1972 when the list originated, compiled "with the hope that a record of the random things people do around here can save some duplication of effort - except for fun." Topics include: Geometry, ...more>>

  29. High School Notebooks - George Beck; MathSource
    High school Mathematica notebooks in two different styles, for teachers to use either directly or as examples of what they might want to imitate or avoid. One style has little explanation and is meant to encourage the student to experiment with the functions ...more>>

  30. Howe-Two Software - Leslie Howe
    Over 70 interactive Windows programs that target specific concepts in secondary mathematics, written by a classroom teacher/programmer. Many free sample downloads are available. The programs are written in Microsoft Visual Basic. Site includes HTML generators, ...more>>

  31. How to Compute One Billion Digits of Pi (Organic Mathematics Proceedings) - D. H. Bailey, J. M. Borwein, P. B. Borwein
    Ramanujan, Modular Equations, and Approximations to Pi - Bailey, Borwein and Borwein. Abstract: This article follows up one small thread of Ramanujan's work which has found a modern computational context, namely, one of his approaches to approximating ...more>>

  32. Icon Odds and Ends - Dept. of Computer Science, Univ. of Arizona
    Icon is a high-level, general-purpose programming language with a large repertoire of features for processing data structures and character strings; an imperative, procedural language with a syntax reminiscent of C and Pascal, but with semantics at a ...more>>

  33. The Incredible Pi Code - Ivars Peterson (MathTrek)
    Researchers have expended a great deal of effort computing as many of the digits of pi as computer technology and mathematical methods allow. Last year, Yasumasa Kanada of the University of Tokyo calculated pi to 206,158,430,000 decimal digits. A high ...more>>

  34. Internet Math Challenge - Dept. of Mathematics, University of Idaho
    A weekly K-12 math challenge from the math department at the University of Idaho, discontinued in 2004. Past puzzles and solutions are available. ...more>>

  35. An Introduction to Pi and the Area of a Circle (SMILE) - Edwina R. Justice, Gunsaulus Scholastic Academy
    A lesson for grades 5-7 that uses a phenomenological approach to observe and discuss the relation between circumference and diameter and how that relation, called pi, is used in the formula for the area of a circle. From the Geometry and Measurement section ...more>>

  36. John Moyer's home page - John Moyer
    Print all of the primes less than 2000000000 within a range of integers; obtain source code for a sieve program; download a Windows NT commmand line program or a Linux binary program to print the prime factors of an integer; use an online sieve to find ...more>>

  37. The Joy of Pi - David Blatner
    No number has captured attention and imagination throughout the ages as much as the ratio of a circle's circumference to its diameter - pi. With historical insight and a sense of humor, The Joy of Pi offers the story of pi and humankind's fascination ...more>>

  38. Math 5337: Technology in the Geometry Classroom - Sullivan, Burgiel, Osinga; The Geometry Center, Univ. of Minnesota
    From the University of Minnesota's course in Computational Methods in Elementary Geometry, materials developed at the Geometry Center for teaching pre- and in-service teachers of high-school geometry interested in using technology in their classrooms. ...more>>

  39. Math Becomes Way Cool - Keith Devlin (Devlin's Angle)
    Over the past two or three years, books about mathematics and mathematicians have made their ways onto the bestseller lists, television series about mathematics have been aired, radio programs have carried stories about mathematics, and newspapers and ...more>>

  40. Mathematical constants and computation - Xavier Gourdon and Pascal Sebah
    How famous mathematical constants were computed in the past, and current ways of obtaining them: pi, e, the logarithmic constant, square root of 2, Euler's constant, and Apery's constant. Also algorithms (arbitrary precision computation; FFT based multiplication ...more>>

  41. Mathematical Entertainment - Eric Hiob, British Columbia Institute of Technology
    Instructions for building a pinball table that demonstrates Pascal's Triangle. Also, notes on the Travelling Salesman Problem; Finding Areas Using the Monte Carlo Method; Important Numbers (pi and e); the Inside or Outside Problem; and the Roller Coaster ...more>>

  42. The Mathematical Explorer - Stan Wagon and Wolfram Research, Inc.
    Based on Mathematica technology, The Mathematical Explorer mixes text, graphics, and formulas in an easy-to-use notebook interface, offering a set of explorations for investigating some of the most fascinating topics in mathematics, from Escher patterns ...more>>

  43. Mathematical Tables and Formulas (S.O.S. Mathematics) - Dept. of Mathematical Sciences, Univ. of Texas at El Paso
    A place for students and educators to access mathematical formulas. The tables are organized by topics: The First 1000 Prime Numbers; The Prime Factorization of the First 1000 Integers; Math for the Toolbox - SAE to Metric Conversion; Some Important Constants; ...more>>

  44. Mathematics - John Savard
    A collection of essays and illustrations: pentagonal tilings, infinity (Cantor's theory of transfinite numbers), rotations of the dodecahedron, Archimedean solids, the fourth dimension (regular polytopes), Gödel's proof and the halting problem, and ...more>>

  45. Mathematiksoftware S I und SII (vorwiegend Shareware) - Monika Schwarze
    Eine Zusammenstellung nützlicher Mathematikprogramme aus dem Shareware-Markt zur Aufarbeitung von Lernrückständen, Wiederholung und Stärkung der Sicherheit mathematischer Rechenroutinen. Vor allen die Programme für die SII dienen der Überprüfung gemachter ...more>>

  46. Math Exercises
    Interactive exercises, lessons, and worksheets to practice knowledge of whole numbers, integers, divisibility, fractions, exponents and powers, percentages, proportional reasoning, linear equations, quadratic equations, monomials, polynomials, special ...more>>

  47. Math in Daily Life - Annenberg Media
    Students often question how they will use basic mathematical concepts, algebra, and geometry throughout their lives - but the average person uses math at least three times a day. Read how math affects daily decision-making in this series of short articles ...more>>

  48. Math Novelty T-Shirts - The SCIENCE TeeCHER
    Purchase a selection of math t-shirts, ties, and scarves. ...more>>

  49. Math Quilts - Rebecca Chaky
    A showcase for quilters inspired by mathematical themes: geometry, perspective, topology, irrational numbers, feathered star, fractals, and tessellations and tiling, including Escher. Also a link to the Math Quilts Online Bookstore, a Reference Department, ...more>>

  50. The Maths Igloo - Ian Lynagh
    Contents: Pi (generating Pi and where you can get it on the 'net); Four plus five (it's nine, isn't it. Or is it? - binary, hexadecimal); All about logarithms; About the Mathematical symbol "e". ...more>>

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