 Resources for Teachers of Developmental Mathematics (MAA)  Mathematical Association of America
A page assembled by the ad hoc Subcommittee on Developmental Mathematics, with the beginnings of an annotated bibliography of articles related to developmental mathematics, including articles on the adult learner of mathematics and experimental programs
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 Resources for the Teaching of Complex Analysis  Paul Fishback
The page includes: sample F(z) for Windows files (downloadable: for each example, an F(z) file is listed along with an MS WORD document describing the F(z) file and its creation in greater detail; a TI86 program that approximates contour integrals using
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 Resources for Undergraduates in Mathematics (MAA)  Mathematical Association of America
Answers and links to sites that answer questions such as: What can I do with a math major? Where can I find help on finding the first job? What has been the experience of other students? What are some other resources?
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 The RetroPsychoKinesis Project  Peter Moore and John Walker
Retropsychokinesis (RPK) is the claimed ability of certain subjects to alter random data generated, but not examined, prior to the time the data are presented to the subject. Read about or run bell curve, clock face, or pendulum feedback programs (Java
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 Retrosheet
Digitizing playbyplay accounts of Major League Baseball games from the past century through the present. Freely download event files, which detail "literally every play" in big league baseball; game logs; schedules; narratives, which provide text playbyplay
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 The Return of Odysseus and the Elements of Euclid  Andrew Wiesner; Classics Dept., Colorado College
The author's 1994 honors thesis, which attempts to shed new light on the origins of Greek mathematics.
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 Return of the Mathematical Tourist  Ivars Peterson (MathTrek)
In the newly published, updated edition of The Mathematical Tourist, Peterson writes, "...computers have become commonplace tools used by nearly all mathematicians, not only to communicate with each other but also to explore mathematical questions...
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 The Return of Zeta  Ivars Peterson (MathTrek)
The Riemann hypothesis is widely considered the outstanding unsolved problem in mathematics. Generations of mathematicians have been lured into hunting for a proof of this celebrated conundrum. All have so far failed. Lately, however, a cautious optimism
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 Return to Socrates  Ion Saliu
BASIC programs for download cover topics such as the birthday paradox, card shuffling, bell curves, permutations, combinations, and a wide range of games of chance, including lotteries, lottos, Powerball, Mega Millions, Pick3, Pick4, Keno, roulette,
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 Reuleaux Triangle  Paul Kunkel
An investigation into the Reuleaux triangle and its properties.
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 ReviewMaster  Intecube Technologies Ltd.
Math review material suitable as reference guides, study aids, or teacher aids for students and teachers. Available for laptops as eBooks, and for handhelds such as the Palm PDA and the Pocket PC.
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 Reviver: A Practical Provable Surface Reconstructor
Free surface reconstructor software that turns unorganised point clouds to surfaces, in a variety of output formats.
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 Ricci: A Mathematica package for doing tensor calculations in differential geometry  John M. Lee, Dept. of Mathematics, Univ. of Washington
Ricci has the following features and capabilities: manipulation of tensor expressions with and without indices; implicit use of the Einstein summation convention; correct manipulation of dummy indices; display of results in mathematical notation, with
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 Rice Computational Mathematics Laboratory  R. O. Wells, Jr., Director; Rice Univ., Houston, TX
A mathematics laboratory collaboration. CML's current research efforts concern wavelet theory and its application in a variety of areas of numerical analysis and signal processing, especially the Automatic Target Recognition (ATR) program.
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 Rice Virtual Lab in Statistics  David M. Lane, Rice University
A comprehensive interactive resource for studying statistics, in four modules: HyperStat Onlinean introductorylevel hypertext statistics book, with links to other statistics resources on the Web; simulations/demonstrationsJava applets that display
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 Richard E. Borcherds
Preprints, papers, and the author's thesis, in HTML, plain TeX, dvi, and pdf formats; problem sheets for Lie algebras or Modular forms, and solutions to some problems in Hartshorne's book; tables of positive definite lattices and coefficients of some
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 Richard Weber, University of Cambridge
Weber's professional interest is the Mathematics of Operations Research. His site includes contact information; a list of publications; a brief CV (with further information about his research interests); a recent research paper; a teaching page (with
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 RichLanza.com  Richard B. Lanza
ACL, Digital Analaysis, Benford's Law, DATAS, DATAS for ACL, DATAS for IDEA, DATAS for Excel, articles and book reviews on project management, audit software, digital analysis®, Benford's law, risk management, and more.
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 RICHplot  Richard Davies
A Java applet for plotting userdefined trigonometric functions. Includes the following functions: sin, cos, tan, abs, sqrt ,+ , ,* ,/ ,^ (power function), asin, acos, atan, ln (log to the base e) and exp. Requires a Javaenabled browser.
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 The Ri Christmas Lectures  The Royal Institution of Great Britain
Register to watch the demonstrationpacked, funfilled videos that have formed a part of the British Christmas tradition for generations: "The natural history of a sunbeam," by George Porter; "Mathematics into pictures," by Christopher Zeeman; "Crystals
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 Rich Starting Points for ALevel Core Mathematics  Jonny Griffiths
Download PDF task files of 40 openended investigative activities for the A Level Pure Mathematics classroom: basic algebra, coordinate geometry, polynomials, curve sketching, uncertainty and inequalities, indices and surds, sequences and series, differentiation,
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 Rick Durrett's Home Page  Rick Durrett
Research in the general area of probability theory, and more specifically in stochastic spatial models and their applications to ecology and genetics. Publications organized into books and papers, as well as s3 (stochastic spatial simulator) and stochastic
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 Riding on Square Wheels  Ivars Peterson (MathTrek)
A square wheel may be the ultimate flat tire. There's no way it can roll over a flat, smooth road without a sequence of jarring bumps. However, a square wheel can roll smoothly, keeping the axle moving in a straight line and at a constant velocity, if
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 Rincón Matemático  Mario Augusto Bunge
Revista electrónica de matemática básica. Temas de análisis, cálculo,
geometría, probabilidades. Problema del mes. Foros.
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 Rincón Matemático Tests interactivos  Mario A. Bunge
Exámenes multiple choice de Precálculo, Matemática, Análisis Matemático y
Álgebra lineal. Cada examen se presenta en dos formatos: PDF y HTML.
El PDF se imprime y se utiliza como una hoja de examen. Realizada la
prueba, se recurre al HTML (quiz
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 Rings (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and decision problems about rings are provided.
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 Rings with Identity (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and decision problems about Rings with Identity, Rings with 1, and Unital Rings.
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 Rinus Roelofs
Geometric sculpture, animation, structures, and "rhinoceros" (knots) by Roelofs, who exhibited as part of the Escher Centennial celebrations. After studying Applied Mathematics at the Technical University of Enschede (Netherlands), Roelofs earned a degree
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 The Rise of Calculus  MacTutor Math History Archives
Linked essay describing the history of Calculus from the Greeks through Newton and Leibniz, with 28 references (books/articles).
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 RiskLab Toronto
One of an international network of math laboratories in the field of risk
modelling. Originally intended to model financial risk, the field has grown
to encompass a number of other areas. Site provides summaries of the lab's
research (including
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 Risorse Internet per la storia della matematica  Claudia Lamberti
Internet resources for mathematics, science, and engineering history selected from the University of Pisa Libraries.
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 RJN's More Digits of Irrational Numbers Page  Nemiroff, Bonnell
All digits accessible here were computed by Robert Nemiroff and Jerry Bonnell. The Digit Warehouse: e, sqrts of 2, 3, 5, 6, 7, 8, 10 to millions of digits.
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 Rlab Computer Language  Ian Searle
Created for scientific and engineering applications, this highlevel language focuses on creating a good experimental environment for matrix math. While not a clone, RLab is described as "MATLABlike" by its creator, Ian Searle. Access information and
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 RngPack  Paul Houle
A pseudorandom number generator package for Java. Pseudorandom means that the "random" numbers are generated by a deterministic mathematical process, not by a fundamentally random physical process such as radioactive decay or Johnson noise. RngPack contains
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 Road Sign Math  Jamie Thingelstad
"Driving + Math = Fun." A game to play on the road, identifying signs that suggest basic or advanced arithmetic, or that display constants, sequences, or primes. See digital photographs of actual street and highway signs that meet the "RSM" rules. Submit
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 Rob Barry's Website
Recent stories by The Wall Street Journal investigative reporter who specializes in computerassisted reporting, which he describes as "the practice of wrestling large sets of data into compelling narratives." Barry's articles have ranged from insider
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 Robbins Algebras are Boolean  William McCune, Automated Deduction Group, Argonne National Laboratory
The Robbins problem  are all Robbins algebras Boolean?  has been solved: Every Robbins algebra is Boolean. This theorem was proved automatically by EQP, a theorem proving program developed at Argonne National Laboratory. Information on the solution;
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 Robert Abbott's Mazes  Robert Abbott
Two very difficult puzzles programmed by Oriel Maxime and based on mazes in Abbott's books: the Sliding Door Maze, and Theseus and the Minotaur. Also a collection of reviews of the books SuperMazes and Mad Mazes, with more puzzles (but nothing interactive),
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 Robert J. Lang Origami  Robert J. Lang
Lang has catalogued and diagrammed over 400 models, combining aspects of the Western school of mathematical origami design with the Eastern emphasis upon line and form. Read about origami mathematics, which mathematically describe the underlying laws
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 Roberto Tamassia's Home Page
Home page of a Professor in the Dept. of Computer Science at Brown University. Curriculum Vitae, recent papers, teaching, books (interests include graph drawing, data structures, computational geometry).
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 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).
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 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
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 RockandRoll 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
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 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.
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 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
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 Rogue Wave's Math Class Libraries  Rogue Wave Software, Inc.
Math.h++ is a C++ class library for any code that manipulates arrays of numbers. Math.h++ offers vector, matrix, and array classes, statistics classes, FastFourier Transformations, and persistence. Product information, technical discussion, Math.h++
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 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:
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 The Role of Examples in Learning Mathematics  Annie and John Selden; Mathematical Association of America
"Examining examples and nonexamples 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 nonexamples? Would they be able
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 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.
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 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.
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