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  All Sites - 5506 items found, showing 4451 to 4500

  1. Rolf's Calculator - Rolf Howarth
    A fully featured JavaScript scientific calculator that includes trig functions and logarithms, factorials, 12 levels of parentheses, logs to base 2, bitwise logical operators, hex, octal, binary and ascii display. ...more>>

  2. Rolling with Reuleaux - Ivars Peterson (MathLand)
    Why is the cover of a manhole round? The usual answer is that a circular lid, unlike a square or hexagonal cover, won't fall through the opening. The circle works because it has a constant width, defined as the distance between a pair of parallel lines ...more>>

  3. The Roman Press, Inc. - Steven Roman
    Home page of a California mathematics professor, including research articles, books and textbooks, and software. ...more>>

  4. Ronald Brown's Home Page - Ronald Brown, Department of Mathematics, University of Wales, Bangor (UK)
    An explanatory paper on higher dimensional group theory; Brown's publications list; preprints/reprints (PostScript); articles on popularisation and teaching, such as "What is mathematics?" and "What should be the output of mathematical education?"; course ...more>>

  5. Rossman/Chance Applet Collection - Franciso Garcia, Carlos Lima, and Beth Chance
    Applets for simulating confidence intervals for population parameter, t-intervals for different population shapes, behavior of regression line, histogram bin width, sampling Reeses Pieces, sampling 2002 U.S. Senators, sampling pennies, sampling words ...more>>

  6. ROSSMANCHANCE.COM - Allan J. Rossman & Beth L. Chance
    Workshops and presentations, publications, and current projects by the authors of the Workshop Mathematics Project textbooks. See tables of contents, instructor guides, sample syllabi and exams, and answers to activities from books in the Workshop Statistics ...more>>

  7. Rough math: Focusing on rogue waves at sea - Ivars Peterson - Science News Online
    Ocean currents and large fields of random eddies can focus a steady ocean swell to create unusually large waves. A current or eddy field acts like an optical lens to focus the wave action, says applied mathematician Bengt Fornberg of the University of ...more>>

  8. A Round-Table Discussion with the Client Disciplines - Sheldon P. Gordon; Mathematics, Suffolk Community College
    A roundtable discussion, chaired by Sheldon Gordon, with participants from a number of the sciences; the topic was how calculus reform affects their respective fields. ...more>>

  9. Rouse Ball's Fallacy - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A famous fallacy by Rouse Ball now implemented in Java. A proof that an obtuse angle is right. How can that be? ...more>>

  10. Row Your Boat - Ivars Peterson (MathTrek)
    Although a rowing shell with eight rowers is much larger than one with a single rower, all shells have roughly the same proportions (at least for the surface area over which the shell makes contact with water). Data from 2000-meter world and Olympic championship ...more>>

  11. The R Project for Statistical Computing
    A language and environment for statistical computing and graphics, originally written by Robert Gentleman and Ross Ihaka (R & R), that provides a wide variety of statistical and graphical techniques, including linear and nonlinear modelling, classical ...more>>

  12. RSA Laboratories' Frequently Asked Questions About Today's Cryptography - RSA Laboratories
    Cryptography FAQs organized into eight chapters: introduction, cryptography, techniques in cryptography, applications of cryptography, cryptography in the real world, laws concerning cryptography, miscellaneous topic, and further reading. With appendices ...more>>

  13. R. S. Schaeffer - Randy S. Schaeffer, Math & Computer Science, Kutztown University of Pennsylvania
    Schaeffer teaches a course called "Methods of Teaching Secondary Mathematics." Download the lessons created by his students that call on Geometer's Sketchpad, graphing calculators, and Microsoft Excel. Lesson topics address parallel lines, box and whisker ...more>>

  14. RT Representation Theory (Front for the Mathematics ArXiv) - Univ. of California, Davis
    Representation Theory preprints, from the U.C. Davis front end for the xxx.lanl.gov e-Print archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic. ...more>>

  15. Rubik's Cube Information - Michael Reid
    All about Rubik's Cube - even a mailing list. Site contents include: the Nederlandse Kubus Club; Rubik's cube pages on the Web; Cube books; Sources of cube-like puzzles; the author's notes, including an optimal cube solver; other Cube solutions on the ...more>>

  16. Rubik's Cube Java Applet - Michael Schubart
    To twist the cube, press the mouse button over a cubelet face that belongs to the slice you want to move. Keeping the button pressed, drag the mouse in the desired direction; then release the button. Moving the whole cube is done in the same way - just ...more>>

  17. Rubik's Games - Androsoft
    Dedicated to the first PC CD-ROM game from Erno Rubik, Rubik's Games contains 5 sub-games: Rubik's Classic, Cover Up, Paint War, Rubik's Playground and ZigThrough. Download the Rubik's Games Web Site Plugin plug-in or a demo of the Rubik's Game CD-ROM. ...more>>

  18. Rubik's Online - Rubik/Seven Towns
    The official online site for the Rubik's cube. Play with the cube and other Rubik's games and puzzles online; find information on where to buy Rubik's products; use the forum to exchange views, opinions, comments, suggestions and anecdotes related to ...more>>

  19. Rubix Corner - Duane Cash
    The site includes information regarding the Duane Cash Cube Collection now featured at Hessport's Rubikshop in their "collectibles" section. New puzzles include the Rubik's Triamese, Fusion, Fusion+, SpeedFusion, 5x3, and 4x3 Cubes, which give those interested ...more>>

  20. Rule-based Mathematics - Albert Rich
    Reduction rules for determining the antiderivative for a wide variety of integrands. See test suite results of his reduction rules, as implemented by Rubi, compared against performances by Maple and Mathematica across a variety of types of integrals. ...more>>

  21. Rungs and Vineyards - Paul Kunkel
    Investigations of two interesting visual effects seen from a moving automobile. It includes two interactive perspective drawings, and a discussion of the cylindrical and planar projections used to create them. ...more>>

  22. Runiter Company - Saeid Nourian
    Demo or purchase software that plots math functions in 3D or in or grid sheets, rotates them, and manipulates them in real-time: Smart Math Calculator, Graphing Calculator, A&G Grapher (algebra and geometry), Statistics Problem Solver, and Calculus Problem ...more>>

  23. Ruth-Aaron Pairs and an Algorithm - Joe K. Crump
    A page on Ruth-Aaron numbers and a novel algorithm capable of generating very large ones (200+ digits). ...more>>

  24. S3-Triplett als 3D-Welt und als Animation - Stefan Scheller
    Ein S3-Triplett (drei orthogonale Projektionen) wartet mit überraschenden Effekten auf. Besonders interessant wird das Triplett, wenn es als VRML-Animation betrachtet wird (VRML-Plug In vorausgesetzt). A GIF-animation shows a S3-triplet. When watched ...more>>

  25. Sabermetrics - The Baseball Archive
    "The search for objective knowledge about baseball." Read a primer of Bill James' findings, or David Grabiner's manifesto on Sabermetrics. Studies address minor league equivalencies ("Are minor league stats a good precictor of major league performance?"), ...more>>

  26. Sabernomics: Economic Thinking about Baseball - John-Charles Bradbury
    A blog on the economics in, and of, the game of baseball. Original tools and studies includes salary estimators, research on age and hitting and pitching, anti-trust and Major League Baseball, attendance and winning, Barry Bonds and walks, competition ...more>>

  27. SABER - The World Bank Group
    An open data tool that provides comparative data on education policies around the world. The Systems Approach for Better Education Results (SABER) web tool aims to help countries collect and analyze information on their education policies, benchmark themselves ...more>>

  28. SABES: System for Adult Basic Education Support - Massachusetts Department of Elementary & Secondary Education
    SABES promotes high quality adult basic education services through training, support, and resources that improve the skills and knowledge of practitioners and strengthen programs. SABES strives to achieve this mission by: providing staff development that ...more>>

  29. Sacramento Area Math Help and Tutoring - Just Math Learning Centers
    Just Math provides math help, tutoring and SAT prep for Sacramento area children through college students. Skills training in elementary math, algebra, geometry, and calculus. ...more>>

  30. Sacred Science: Essays on Mathematics, Physics and Spiritual Philosophy - Thomas J. McFarlane
    Essays in philosophy and religion intended to reveal the harmony in mathematical, physical and spiritual knowledge: Quantum Mechanics and Reality; Symmetry in Science and Religion; Science: Physical and Spiritual; Kant and Mathematical Knowledge; The ...more>>

  31. SAGE
    SAGE is free and open software that supports research and teaching in algebra, geometry, number theory, cryptography, etc. Interfaces with other prominent mathematics programs--use them from within SAGE. Tutorial, documentation, and developers' pages ...more>>

  32. Sage: Open Source Mathematics Software - William Stein, University of Washington
    An open source mathematics program designed to do everything from map a 12-dimensional object to calculate rainfall patterns under global warming--anything Maple, Matlab, or Mathematica would do. This free software reveals how it performs its calculations--so ...more>>

  33. Salinon: From Archimedes' Book of Lemmas - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A description of Archimedes' application of propositions from the second book of Euclid's Elements to mathematical proofs. An interactive Java exploration is provided. ...more>>

  34. Saltire Software
    Mathematical technology for industry and education. Saltire Software's core technologies are constraint-based interactive geometry systems, symbolic algebra, and optimization, with products for mechanical engineering, mathematics education and layout ...more>>

  35. Sampling and the Census - Ivars Peterson - Science News Online
    Despite strong support from statisticians, the Census Bureau's plan to increase the use of sampling in the next census has met resistance in Congress. ...more>>

  36. Samuel Arbesman
    Research and writings by the author of The Half-Life of Facts. As an applied mathematician and network scientist, Arbesman's delves into the science of science, nature of productivity and prosocial behavior within cities, the structure and function of ...more>>

  37. Sandpiles in Graphs - Angela R. Kerns
    Research into sandpiles in graphs, related to previous research by others in several areas including include sandpiles in grids and chip-firing games; also sandpile rules as algorithms for information dissemination problems. An application of cellular ...more>>

  38. Sangaku, Japanese Temple Geometry - Tony Rothman, Princeton University
    For centuries in Buddhist and Shinto shrines, Japanese have hung wooden tablets containing mathematical problems. Read PDF or PS downloads of a tutorial on the inversion method for solving Sangaku, or of the article "Japanese Temple Geometry," which first ...more>>

  39. Sangaku: Reflections on the Phenomenon - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A collection of sangaku problems with Java simulations and complete solutions, preceded by an introductory article that promotes an unorthodox view point on the wonderful phenomenon of Temple Geometry. ...more>>

  40. Sara Billey
    Sara Billey researches combinatorics, algebra, Lie theory, algebraic geometry and probability. Her papers on these topics may be downloaded in PostScript or gzipped PostScript format. The syllabi and problem sets for her undergraduate courses, i.e. ...more>>

  41. Sarah Glaz
    Teaching, research, books, and articles by the algebraist, ring theorist, and poet. See, in particular, the math poems of undergraduate students and Glaz's own poetry, which includes "Mathematical Modeling," "A Pantoum for the Power of Theorems," "I am ...more>>

  42. sarah-marie belcastro's home page - Sarah-Marie Belcastro
    From one of the authors of Making Mathematics with Needlework: "I seem to have become a topological graph theorist while I wasn't looking. I am also interested in convex and combinatorial geometry, algebraic geometry, topology, algebra, the geometry of ...more>>

  43. Savard Software
    Windows shareware and freeware, including Master Converter (which converts over 580 units in more than 30 categories, with the ability to add your own units and categories) as well as a program launcher and various desktop utilities. ...more>>

  44. sbParser-SDK 3.6 for Win32 - Joerg Koenning
    A program that provides an easy way to create an sbParser object that can solve mathematical functions of any length. You can declare up to 24 variables (6 with the ActiveX-control) that can be defined and redefined, which is useful for fast calculations, ...more>>

  45. Scales of Measurement - Niel Brandt
    An extensive list of physical and mathematical events and objects in ascending values and orders of magnitude. ...more>>

  46. Scheduling Random Walks - Ivars Peterson (MathTrek)
    Among networked computers, some sort of software scheduler must regulate data flow, but proving that a given scheduler not only prevents conflicts but also performs its duties efficiently can be surprisingly difficult. Computer scientists have found that ...more>>

  47. Scholarly Societies Project - Mathematics - University of Waterloo Electronic Library
    A subject page created by compilers at the University of Waterloo Library to facilitate access to websites maintained by or for more than 80 scholarly mathematics societies across the world: an alphabetical list by society name, followed by its acronym. ...more>>

  48. SchoolsIntheUSA.com - The EI Group
    Request free information and application packages from undergraduate programs; compare select colleges based on tuition, location, size of student body, and other criteria; search databases of career profiles and state scholarships; find articles on financial ...more>>

  49. School-to-Work (STW) - National STW Learning and Information Center
    A system to prepare youth for the high wage, high skill careers of today's and tomorrow's global economy. Using federal seed money, States and their partnerships design the school-to-work system that makes the most sense for them. There is no single model. ...more>>

  50. Schroedinger's Cash Register - Oliver Baker - Science News Online
    A discussion of the application of physics (particle physics, quantum theory, and statistical mechanics) to finance theory, with econophysicists attempting to break ground in Wall Street, and the possible underlying mathematical structure of market behavior. ...more>>


 
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