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  All Sites - 6831 items found, showing 5401 to 5450

  1. Robert's Online Applications - Robert Lum
    Java applets to assist with financial investments: commissions pricer, derivatives pricer, loan pricer, option pricer, option strategy visualizer, portfolio pricer, quote sheet, stock volatility charts, and tax pricer (1999, 1998, 1997, 1996 or 1995). ...more>>

  2. Robo Compass
    "Geometrical constructions made easy": type commands such as "draw segment AB between points A and B" and "construct an arc z with center O and radius which is length of segment y," then watch Robocompass draw the construction onscreen with its animated ...more>>

  3. Robotic Navigation with Constraints - J. A. Sethian
    A paper and movie on robotic navigation. Finding the Shortest Path: The equation that describes the arrival time of this expanding front as it depends on the possible speed at any point and direction is the Eikonal equation. The fast marching method is ...more>>

  4. Robotics: Sensing, Thinking, Acting - The Tech Museum of Innovation, San Jose, CA
    An exibit designed to introduce the science behind the design and operation of robots. Features four exhibit areas: Universal Robots: History and Workings of Robotics; Machines and Man: Robotics and Ethics in the 21st Century; Robot Art: Four Bay Area ...more>>

  5. Rock-and-Roll Bridge - Ivars Peterson (MathTrek)
    Startling scenes of rippling pavement, featured in a classic film that captured the 1940 destruction of the Tacoma Narrows suspension bridge in Washington state, rank among the most dramatic and widely known images in science and engineering. This old ...more>>

  6. Rocky Mountain Mathematica - Ed Packel, Stan Wagon
    Introductory and intermediate workshops on Mathematica for teachers of mathematics and other scientific subjects. Workshops are held in Colorado during early July. The site includes registration information, schedule, and syllabi. ...more>>

  7. Rodney Carr's Home Page - Deakin University, Australia
    Books and software on statistics and advanced spreadsheet design. Contact the author for passwords to access downloadable documents and executable Microsoft Excel workbooks such as XLStatistics, for statistical analysis of data; XLGenetics, for illustrating ...more>>

  8. The Role of Calculators in Math Education - Heidi Pomerantz, Bert Waits for USI/CPMSA
    This PDF article outlines the benefits of calculator use in mathematics classrooms from kindergarten through the university level, describing how calculators, when used appropriately, can be a tool for learning mathematics. The document has six sections: ...more>>

  9. The Role of Examples in Learning Mathematics - Annie and John Selden; Mathematical Association of America
    "Examining examples and non-examples can help students understand definitions.... Is the provision of examples always desirable? Would it perhaps be better to ask undergraduate students to provide their own examples and non-examples? Would they be able ...more>>

  10. Roles of calculators in the classroom - Pedro Gómez and Bert Waits
    The site contains the extended papers of the conferences presented in the Topic Group 18 of the International Congress of Mathematics Education held in Seville in July, 1996. Papers are presented both as web pages and as PDF files. ...more>>

  11. 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>>

  12. Rolling a Die Until Every Face Has Appeared (Math Chat) - Frank Morgan, MAA Online
    How many times do you think you need to roll a normal die to be 90% sure that each of the six faces has appeared at least once? Why? Answer: It takes 23 rolls, as Al Zimmerman discovered in a computer experiment rolling 5000 dice until 90% of them had ...more>>

  13. Rolling Dice - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about rolling dice, cube and octahedral, fair and biased, once and many times. ...more>>

  14. 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>>

  15. Rolocu: the Colour Twist Puzzle - Charles Edge
    Use logic and planning to put the pieces into place so that all rows and columns have all the colours in them. ...more>>

  16. A Romance With Numbers - K. Venkatasubramanian
    Biographical information and thoughts about Srinivasa Ramanujan, from The Hindu, December 24, 1993. ...more>>

  17. Roman Numeral Date Conversion Guide - Christopher Handy
    A guide to deciphering Roman numeral year dates as commonly found in both modern and early printed books, including a Java applet that accepts Roman numeral input in the range 1-4,999 and converts it to Arabic form. The page explains the basic principles ...more>>

  18. Roman Numerals 101 - Oliver Lawrence
    The Romans used only seven letters; the combination of a letter and its position could represent any number. They also used a line above the letter, so the numbering system actually represents our own very closely, with fourteen different symbols. The ...more>>

  19. Roman Numerals and Dates - Paul Lewis
    An illustrated introduction to Roman numerals, including Roman dates and calendar conversion, history and uses, a page on The Great 1999 Question, and a quiz. Three conversion tables are provided: Numerical 1-1449; Numerical 1450-2100; and Alphabetical ...more>>

  20. Roman numerals and decimals (Classics log) - John Durham
    A letter to a Classics mailing list about the origin of and ease of calculation with Roman numerals. ...more>>

  21. Roman Numerals - Math Forum, Ask Dr. Math FAQ
    Basics: How do I read and write Roman numerals? What are the rules for subtracting letters? How do I write large numbers? Web resources: introductions, charts, calculators, and converters. Calculations: Did the Romans use fractions? How can I use Roman ...more>>

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

  23. Ron Blond - Ron Blond
    Circle geometry applets to explore inscribed and central angles, tangents and radii, and tangents and inscribed angles. Also, applets illustrating the quadratic function (completed square and the discriminant), transformations of the sine and cosine functions, ...more>>

  24. The Roots of the Equation - James Cleveland
    Blog by a high school algebra teacher in New York City "trying to figure out how it all fits together ... [and] creating interdisciplinary problems, projects, and thinking." A Math for America (MfA) fellow, Cleveland has blogged since June, 2011, with ...more>>

  25. Rosebush Math Line Puzzles - Math Forum
    Three puzzles: 1) plant 7 rosebushes so that they form 6 straight lines with 3 rosebushes in each line. 2) plant 10 rosebushes in 5 straight lines with 4 bushes in each line. 3) plant 19 rosebushes in 9 straight lines with 5 bushes in each line. Questions, ...more>>

  26. 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>>

  27. 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>>

  28. The Ross Program - The Ohio State University
    For high schoolers, the OSU Department of Mathematics offers an intensive summer experience designed to encourage motivated pre-college students to explore mathematics. Over the course of eight weeks, students are immersed in a world of mathematical discovery. ...more>>

  29. Rotations (SMILE) - Susan Nash, Lake View High School
    A lesson designed to teach students to define rotation as the composite of two reflections over intersecting lines; identify rotation images of a figure; and recognize and apply the properties of rotation. From the Graphs and Visuals section of a collection ...more>>

  30. 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>>

  31. Rounding a Decimal - NASA Lewis Learning Technologies Project
    Round 12.5861 to the nearest hundredth. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  32. Rounding Down? - Jim Loy
    This is an article about the difference between rounding and truncation, with some stories about the effects of rounding (or truncation) on computer programs. ...more>>

  33. Rounding Numbers - Math Forum, Ask Dr. Math FAQ
    How do you round a number to the nearest tenth (10th), hundredth (100th), thousandth (1000th), etc.? ...more>>

  34. Rounding Seconds - NASA Lewis Learning Technologies Project
    Erv ran the 110 meter high hurdles in 13.27 seconds. His teammate, Willie, ran the same race in 12.91 seconds. Rounded to the nearest tenth of a second, how much faster was Willie's time? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  35. 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>>

  36. Route ICS (formerly DeweyWeb): Interactive Communications and Simulations - Univ. of Michigan
    An effort to link distant schools and expand the classroom experience: using telecommunications and computer conferencing, students can spend part of every school day in a "global classroom." Crossroads: The Route 12 Project is a grassroots attempt to ...more>>

  37. 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>>

  38. Roxanne Eckenrode's Storefront - Lulu.com - Free Self-Publishing - Roxanne Eckenrode
    Self-published math worksheets. Several are free. They are downloadable and printable; correct answers will spell out a message or fill in a puzzle. ...more>>

  39. Royal Tyrrell Museum of Palaeontology
    Virtual site for a science museum named for Joseph Tyrrell, who in 1884 travelled to what is now Alberta, Canada to study coal deposits and found the first dinosaur remains ("Albertosaurus") in the Drumheller area. The museum's mandate is to collect, ...more>>

  40. 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>>

  41. 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>>

  42. 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>>

  43. 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>>

  44. 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>>

  45. 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>>

  46. 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>>

  47. Rudi Mathematici - Rudy d'Alembert, Alice Riddle, and Piotr R. Silverbrahms
    Matematica, giochi matematici, problemi, indovinelli e farneticazioni. Soprattutto una rivista, RM contiene Il Compleanno, Problemi del Mese, Bungee Jumpers, Soluzioni e Note, Quick & Dirty, Pagina 46, Paraphernalia Mathematica, Allegati ed Eventuali, ...more>>

  48. 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>>

  49. 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>>

  50. Russian Peasant Multiplication - Math Forum, Ask Dr. Math FAQ
    What is Russian peasant multiplication? How do I use it? Why does it work? How is the Russian peasant algorithm connected to binary numbers? ...more>>


 
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