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  All Sites - 6793 items found, showing 4851 to 4900

  1. 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 ...more>>

  2. Pi-Search
    Search the first four billion binary digits of Pi for a string. Enter the string in hex (4 bit) or character (5 bit) format. Includes some statistics (probability of occurrence of characters, digits). Related links include articles and papers. ...more>>

  3. The Pi-Search Page - Dave Andersen
    Search the first 50 million digits of pi for any numeric string up to 120 digits. The page also documents a few observations about pi's numeric strings, including self-locating strings, palindromes, and month-day combinations. ...more>>

  4. The Pi Song - Hester Lewellen
    Pi Song audio and sheet music. This musical scale is aligned to the digits of pi. ...more>>

  5. PI Team Chess Game
    A multiple player chess game. PI Team Chess builds strong problem solving, critical thinking, math and teamwork skills. Site includes chess lesson plans, scholastic research on chess, and problem solving activities. ...more>>

  6. Pitfalls of Data Analysis - Clay Helberg
    Subtitled "... or How to Avoid Lies and Damned Lies," this paper discusses what people "often overlook in their data analysis, and ways people sometimes 'bend the rules' of statistics to support their viewpoint." Tips to ensure the clarity and accuracy ...more>>

  7. 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>>

  8. The Pi Trivia Game - Eve A. Andersson
    Test your knowledge of history, mathematics, and even a little physics. Here are 25 (given to you 5 at a time) pi-related questions, picked randomly from a pi question database. Also at http://cid.com/~eveander/trivia/. ...more>>

  9. The Pixel Calculator - METIP (Mathematics Experiences Through Image Processing) Project
    The Pixel Calculator is intended primarily for use by students of ages 12-17 in a variety of enrichment activities involving mathematics and digital image processing. It provides a good introduction for students to digital images by allowing students ...more>>

  10. PJ's Mathematical Gold Nuggets - Pam Strout; Bethel High School, Bethel, Connecticut
    Links relating to K-12 research topics in mathematics and mathematics teaching collected and usefully annotated by a mathematics teacher. ...more>>

  11. Place Value - Cut the Knot!, Alexander Bogomolny
    Dictionary definitions of place value and what they lack; the emphasis on place value in the NCTM Standards; its importance in understanding our numeration system; how it arises from one of several possible representations of grouping in the counting ...more>>

  12. Planar Geometry (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine
    An extensive annotated list of links to material on planar geometry. ...more>>

  13. Planarity Flash Game - John Tantalo
    Arrange the vertices such that no edges overlap. Solve graphs of increasing difficulty, accumulating points based on the number of moves and the time it took to make them. ...more>>

  14. Plane Geometry Web Pages - David Jaffe
    Materials from a geometry course originally taught to future middle and high school teachers. Using definitions, theorems, proofs, and examples, the site introduces mappings; isometries and similarities; angles and trigonometry; congruence and similarity; ...more>>

  15. Plane Graphic Calculator - J. E. Lillge
    A Java calculator that can plot graphs of mathematical functions. Intended primarily as an educational aid to understanding the geometric interpretation of mathematical functions, it also supports complex numbers, vectors, and parametrically defined functions. ...more>>

  16. Plane Isometries - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A collection of basic facts and partial explanations on plane isometries. With accompanying Java applets for translation, reflection, rotation and glide reflection. ...more>>

  17. Plane Patterns - Ivars Peterson (MathTrek)
    Exploring the link between mathematical symmetry and artistic effort. One- and two-dimensional repeating patterns appear ubiquitously on surfaces, from quilts and colored fabrics to pottery and ceramic tiles... Analyzing the symmetries that underlie such ...more>>

  18. Planes of Budapest - Ivars Peterson (MathTrek)
    Nearly every Sunday during the winter of 1933 in Budapest, a small group of students would meet somewhere in the city at a park or cafe to discuss mathematics. The gathering typically included Paul Erdös (1913-1996), György (George) Szekeres, ...more>>

  19. Planet Math
    Designed to be a central repository for mathematical knowledge on the web, with a pedagogical slant. All content is user-contributed, either to the Encyclopedia or to the reviewed listings of papers, books, and lecture notes. Polls, discussions, and feedback ...more>>

  20. PlanetMath.Org Article Browser - martin.czygan
    All articles from PlanetMath.org ordered by pagerank--an attempt to sort math topics by importance (according to the pagerank algorithm). Incoming and outgoing links for an article are shown in an unobtrusive user interface. ...more>>

  21. Planet Perplex - Stefan Van den Bergh
    Collection of optical illusions, impossible objects, visual puzzles, and hidden images. ...more>>

  22. Planetqhe (Probabilistic Learning Activities Network) - David Kay Harris
    Out-of-the-ordinary probability problems. The site focuses on using methods of probability to solve counter-intuitive problems and deepen students' understanding and competence in the domain. Sections include: a brief history and rationale of the site; ...more>>

  23. The Planimeter - Paul Kunkel
    The planimeter is a drafting instrument used to measure the area of a graphically represented planar region. The region being measured may have any irregular shape, making this instrument remarkably versatile. ...more>>

  24. Plastelina Logic Games - Plastelina
    Free Flash games include classic constrained "crossing" problems, such as the puzzle of ferrying a wolf, a sheep, and a head of cabbage across a river in a boat that only holds any two of them at once, without leaving the wolf and sheep alone in each ...more>>

  25. Plato: Acceptance of Astronomy as a Science - Michael Tirabassi
    Translations from Plato's Dialogues (Loeb edition): The Myth of Er (a multihemispere model of the sky - Republic, X, 616B-617). The True Astronomer Must be the Wisest of Men (Epinomis 990a); Pursue Astronomy as you Would Geometry (Republic 530b); Realise ...more>>

  26. The Platonic Solids and Polyhedra - Paul Flavin
    The 5 Platonic Solids and one odd-ball polyhedron (a soccer ball). The kinship among the polyhedra is reflected in a 'family photo'. The polyhedra are laid out in a triangular pattern, with the tetrahedron alone in its row, joined with the other Platonic ...more>>

  27. Platonic Solids - Buckley; Metropolitan School District of Pike Township, Indianapolis, IN
    A demonstration of the construction of the five Platonic Solids from Book 13 of Euclid's Elements. Contents include: Prop 13 - pyramid; Prop 14 - octahedron; Prop 15 - cube; Prop 16 - icosahedron; Prop 17- dodecahedron; and a Glossary Of Terms. ...more>>

  28. The Platonic Solids Information Site - Dan Radin
    Information, computer graphics, a computer-animated video, teaching tools, and links pertaining to the three-dimensional geometry of the polyhedron in its many forms. Radin focuses particularly on the five Platonic solids--the tetrahedron, the cube, the ...more>>

  29. Platonic Solids - Paul Bourke
    Definitions, formulas, and illustrations of the three-dimensional regular polyhedra: tetrahedron, octahedron, hexahedron (cube), icosahedron, dodecahedron, including the solids as drawn in Kepler's Mysterium Cosmographicum, and as represented in stone ...more>>

  30. Platonic Solids - Rüdiger Appel
    Dwnload GIF animations, with shadow effects, of the five Platonic solids. Also available in German. ...more>>

  31. Platonic Spheres (Dr. Neubert's Website) - Karl-Dietrich Neubert
    A systematic approach to generating the Platonic bodies, using Java applets. A major aspect is the inclusion of Descartes' concept of angular deficit as a measure of curvature. An extension of Platonic bodies to Platonic spheres. ...more>>

  32. Platonische Körper - Klaus Bernt
    Nets of the Platonic solids to fold. Download in postscript format for printing. In German. ...more>>

  33. Plato's Molecule - Ivars Peterson (MathTrek)
    In his dialogue Timaeus, the Greek philosopher Plato (427-347 B.C.) carefully laid out his reasoning for ascribing certain geometric shapes to the minuscule particles that constituted the four elements of matter. In his view, these elements - fire, air, ...more>>

  34. Play a Piano : An interactive Musical Java Activity - Paul Flavin
    Play a Piano / Synthesizer / Oscilloscope: Play the piano using your mouse or computer's keyboard. Watch the wave forms as well as hear them. This virtual reality Java piano lets you play the piano and have a little fun while learning the relation between ...more>>

  35. Play Ball (SMILE) - Roslyn N. Matthews, South Shore High School
    A baseball lesson designed to teach students to compute batting and earned run averages; given general dimensions of the playing field and some equipment, change the units to the metric system; find the diagonal distance from 3rd base to 1st base; and ...more>>

  36. A Playground of Thoughts - Takasugi Shinji
    Takasugi's "Number Systems of the World" lists dozens of languages; how to count from zero to one hundred in each; and the mathematical meaning of the expressions for each numeral. For example, the French say "93" with quatre-vingt-treize, which means ...more>>

  37. Playing with Ruth-Aaron Pairs - Ivars Peterson (MathLand)
    On April 8, 1974, Henry (Hank) Aaron hit his 715th major league home run, surpassing the previous mark of 714 career home runs long held by baseball great Babe Ruth. Understandably, the event received considerable coverage in newspapers and magazines ...more>>

  38. Plexagon - Pleated Hexagon - Paul Bourke, Ron Evans
    Plexagon is a new modular geometry based on the radial pleating of polygonal plates, and their joining or co-bracing into 3D modules. This engineering approach can form a very practical basis for modular greenhouses (using recycled plastic sheeting) and ...more>>

  39. Plimpton 322: The Ancient Roots of Modern Mathematics - Laurence Kirby
    A video documentary of our mathematical ideas from ancient cultures in the Middle East, Asia and Africa, and how they remain relevant in modern society and technology. The 33-minute film includes footage of a 4,000-year-old cuneiform tablet known as Plimpton ...more>>

  40. Plouffe's Inverter - Simon Plouffe
    A database of more than 84,800,000 mathematical constants like Pi, Sqrt(2), Catalan and Euler's gamma. Enter a number, search or browse, and the programs will find what the number is made of. From the author of the Encyclopedia of Integer Sequences (with ...more>>

  41. Plouffe's Inverter: Table of current records for the computation of constants
    Classical constants: Pi, 1/Pi, E, Catalan, Zeta(3), Euler's gamma, log(2), Golden Ratio, Square root of 2, N'th binary digit computations, other interesting computations (Bernoulli numbers, Zeros of Riemann's Zeta Function, Madelung Constant, Khintchine ...more>>

  42. Plumbing Statistics and Information - PlumbingSupply.com
    Conversions, formulas, and tables about water weights, pressures, flows, volumes, horse power, pump efficiency, the weight of 100 yards of pipe filled with water, and flow rate to velocity comparisons. Also, a water flow rate guide and abbreviations. ...more>>

  43. Plusepsilon.de - Marc Palm
    Question-and-answer German language platform for undergraduate and graduate math students. Browse or search questions by users, by tags of math topics, and other options. Not intended as a discussion platform, Plusεpsilon rewards participation ...more>>

  44. Plus Magazine - Department of Applied Mathematics and Theoretical Physics, University of Cambridge
    Plus (formerly PASS-Maths) is a triannual online magazine for older pupils and the general public. It publishes articles explaining the diverse applications of mathematics used in solving problems in physics, chemistry, biology, engineering, and economics. ...more>>

  45. PM Zone Science Search - Popular Mechanics
    Enter words describing a concept or keywords you wish to find information about to conduct a keyword search of the science/technology magazine Popular Mechanics. For topics other than science, see the PM Search Page. ...more>>

  46. PNA: Revista de Investigación en Didáctica de la Matemática
    PNA is a peer-review open access research journal published by the Spanish research group "Mathematics Education. Numerical Thinking" of the Andalusian Plan of Research. This journal includes papers in English and Spanish related to the teaching and learning ...more>>

  47. PNC Christmas Price Index - PNC Bank
    PNC calculates the Christmas Price Index each year as a fun, lighthearted way to look at the increasing cost of goods and services in the song, "The Twelve Days of Christmas." Areas of their site include a video presentation, an interactive chart, and ...more>>

  48. Podcast Directory: Math - Podseek
    Podcasts of various math instruction and tutorials. Log in to rate or review the links. ...more>>

  49. Poe, E.: Near a Raven - Mike Keith
    An attempt at constrained writing - the art of constructing a work of prose or poetry that obeys some artificially imposed condition. "Near a Raven" encodes the first 740 decimals of pi. ...more>>

  50. Poe's Secret - Ivars Peterson (MathTrek)
    Writer Edgar Allan Poe (1809-1849) is famous for his short stories of the mysterious and the macabre. His popular tale "The Gold-Bug," published in 1843, is often cited as one of the best works of fiction that turn upon a secret message. Poe had a longstanding ...more>>


 
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