 Number Theory (MathPages)  Kevin Brown
More than 100 "informal notes" by Kevin Brown on number theory: linear recurring sequences, Zeisel numbers, Wilsonian primes, arithmetic progression, sublime numbers, square triangular numbers, and many more.
...more>>
 Number Theory Web  Keith Matthews, Dept of Math, University of Queensland, Brisbane, Australia
A collection of links to online information of interest to number theorists everywhere, including number theorists' home pages and departmental listings.
...more>>
 Number Watch  John Brignell
"All about the scares, scams, junk, panics, and flummery cooked up by the media, politicians, bureaucrats, socalled scientists and others who try to confuse you with wrong numbers." A site devoted to the monitoring of the misleading numbers that rain
...more>>
 numberworld.org  Alexander J. Yee
Yee takes mathematical constants such as pi, SQRT2, the golden ratio, e, log(2), log(10), and zeta(3) and calculates them to billions of digits. Read about and download ycruncher, his multithreaded piprogram. See also his timetable of notable large
...more>>
 The Number Years  Libicki, Quinn
A concept originally created by Eric Libicki as a classroom activity to bring a sense of fun to learning the history of mathematics, now in the game show format presented here. Several online versions are available, and users will be able to craft their
...more>>
 The Numerical Algorithms Group (NAG)  Oxford, UK
Products and services; libraries for the solution of mathematical problems: numerical software; statistical software covering all areas of statistical computation; compilers, tools, and code coverters for developers and programmers, symbolic software
...more>>
 Numerical Analysis Digest Search Interface  Netlib
The NA Digest is a collection of articles on topics related to numerical analysis and those who practice it. All issues are indexed using Glimpse. To execute a search, enter a phrase or word into the form and choose the appropriate settings for your query.
...more>>
 Numerical Analysis  JeanPierre Moreau
Numerical analysis source code in BASIC, C++, FORTRAN, or Pascal. Program topics include real and complex roots, evaluation of Bessel functions, signal processing, matrices, and statistics.
...more>>
 Numerical Analysis  Math Forum
Links to some of the best Internet resources for numerical analysis: Web sites, software, Internet projects, publications, and public forums for discussion.
...more>>
 Numerical Analysis & Numerical Methods Project  John Mathews
Extensive modules & tutorials: solution of linear and nonlinear equations, interpolation and polynomial approximation, curve fitting, numerical differentiation and integration, numerical optimization, solution of ordinary and partial differential equations,
...more>>
 Numerical Integration: Accumulating Rates of Change  Geometry Center
The fundamental theorem of calculus tells us that if we know the rate of change of some quantity, then adding up (or integrating) the rate of change over some interval will give the total change in that quantity over the same interval. But often scientists
...more>>
 Numerical Integration Tutorial  Joseph L. Zachary
A tutorial that explores rectangular and trapezoidal methods for numerical integration. Includes a Java applet that opens in a separate window, for use alongside the tutorial. From a Computer Science course at the University of Utah, and the book Introduction
...more>>
 A Numerical Library in Java  Hang T. Lau
The book contains the source code of a comprehensive numerical library in
Java. The library can be used to solve a wide range of numerical problems
in linear algebra, the numerical solution of ordinary and partial
differential equations, Fast Fourier
...more>>
 Numerical Mathematics
Numerical mathematics software and general explanations of methods used.
...more>>
 Numerical Methods  Douglas N. Arnold; Mathematics Dept., Penn State University
An extensive list of centers (including online services and search engines), individual libraries, other sites (general and specific), journals, books, online publications, and other resources for numerical methods.
...more>>
 Numerical Problems (Algorithm Design Manual)  Steven S. Skiena
A chapter from the Algorithm Design Manual, by Steven S. Skiena. Specific algorithms: Solving Linear Equations; Bandwidth Reduction; Matrix Multiplication; Determinants and Permanents; Constrained and Unconstrained Optimization; Linear Programming; Random
...more>>
 Numerical Recipes in C: The Art of Scientific Computing  Books OnLine  Press, Teukolsky, Vetterling, Flannery; Cambridge University Press
An online book available in Adobe Acrobat or PostScript formats that outlines the method of organizing a program, and then provides the methodology and (copyrighted) source code in the C programming language for: linear algebraic equations, interpolation
...more>>
 Numerical Relativity Group  Penn State University
A group established to promote interaction between students, postdocs and faculty interested in the computational aspects of General Relativity and its applications to Cosmology and Astrophysics. The group members are affiliated with the Departments
...more>>
 Numericana.com  Gérard P. Michon
The online companion of Numericana, this site contains excerpts from Michon's book, including the entire glossary of scientific terms. Browse an index with pithy summaries, browse by popularity, or search nearly two hundred of his "final answers" of readers'
...more>>
 Numeric Tests Solver  The IQ Challenge
Enter an integer sequence, and this program attempts to determine the next number in the sequence. It
is based on artificial intelligence algorithms.
...more>>
 Numeritek  E. F. Toro
Home of Numerica, a library of source codes for solving hyperbolic partial differential equations using a broad range of modern, highresolution shockcapturing conservative and nonconservative numerical methods. Most of the programs are based on upwind
...more>>
 Nummòlt  Maurici Carbó Jordi
Java applets: an area "workshop," which explains area and division by converting numbers in area units; an architect's toy blocks, with gravity; connecting and programming elementary logic (in the form of pipes with light bulbs signifying true sentences);
...more>>
 nUniform Tilings  Brian Galebach
Illustrates the edgetoedge tilings of regular polygons having n transitivity classes of vertices for 1<=n<=6. Prior to my doing so, no enumeration had ever been completed of the nuniform tilings for any n>3.
...more>>
 NuPrl Proof Development System  Cornell University, Ithaca, NY
A tacticbased proof assistant developed over the last 15 years at Cornell University. Its features include: very expressive logical language based on MartinLof type theory, extensive library of formal mathematics and automata theory, possibility of
...more>>
 The Nursing Files  Math  The Wayfarer
Answers to nurses' questions about math, and formulas nurses are expected to know everyday. Learn about tables of equivalents, terms (measures of weight, volume, capacity, and length), dosages, ratio solutions, intravenous (IV) flow rates, percent solutions,
...more>>
 nyscollmath  Math Forum
The college level mathematics discussion group of the Association of Math Teachers of New York State. Anyone interested in math education beyond high school is welcome to join. Read and search archived messages; and register to post to the discussions.
...more>>
 OA Operator Algebras (Front for the Mathematics ArXiv)  Univ. of California, Davis
Operator Algebra preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
...more>>
 OberPrima Mathematik  Olaf Hinrichsen
Instructional German language math videos, browseable by klasse or searchable by keyword.
...more>>
 The ObjectOriented Numerics Page  Todd Veldhuizen
Mailing lists; Free libraries of software for linear algebra, arrays and images, neural networks and genetic algorithms, multiprecision/exended exponent data types, differential equations, automatic differentiation and interval arithmetic, visualization,
...more>>
 Observer Mechanics: a Formal Theory of Perception  Bennett, Hoffman, Prakash
Full book online in pdf format. An inquiry into the subject of perception, the book suggests an approach to the study of perception that attempts to be both rigorous and general. The authors also attempt to introduce a new formalism, including mathematical
...more>>
 Occam Press  Peter Schorer
"The skeptical mathematician is invited to improve upon the current implementations of the 3x + 1 strategy...." In addition to the Collatz conjecture, Schorer offers a simple proof of Fermat's Last Theorem, articles on Occam's Razor and programming,
...more>>
 Oceania  Mathematics and the Liberal Arts  Todd Hammond
Notes on published articles: a resource for student research projects and for teachers interested in using the history of mathematics in their courses. Many pages focus on ethnomathematics and on the connections between mathematics and other disciplines.
...more>>
 Oceanographic Data  National Center for Atmospheric Research (NCAR)
From An Introduction to Atmospheric and Oceanographic Datasets, a text or Instructional Aid (IA) that describes, in very general terms, the datasets most commonly used to study the atmosphereocean system, including observations from conventional meteorological
...more>>
 OC Optimization and Control (Front for the Mathematics ArXiv)  Univ. of California, Davis
Optimization and Control preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
...more>>
 OER Commons  Institute for the Study of Knowledge Management in Education
An open learning network for teachers and professors to access their colleagues' course materials, share their own, and collaborate. The Open Educational Resources site features tags, ratings, comments, reviews, and social networking functions, as well
...more>>
 Office for National Statistics  Government Statistical Service, United Kingdom
The United Kingdom agency that coordinates national statistics. Tables of key social, economic, and environmental data, press releases, catalogue of publications, articles, and a newsletter. Information about the British census, including articles in
...more>>
 Of Men, Mathematics, and Myths  Keith Devlin (Devlin's Angle)
"With the Unabomber now firmly implanted in the public psyche as "a mathematician," the caricature of the mathematician as the misunderstood, antisocial loner has received a considerable boost. That much of mathematics these days is done by two or more
...more>>
 Ohio Literacy Resource Center  Kent State University
The Ohio Literacy Resource Center provides support, training and resources for the people who work in and attend classes at adult and family literacy programs. The OLRC also works with GED graduates who are attending Kent State University. The site offers
...more>>
 Old and New Arithmetic  Ivars Peterson (MathLand)
"Three merchants have invested their money in a partnership..." This problem appears in a mathematics textbook known as the Treviso Arithmetic. The original book, written in a Venetian dialect, had no formal title, and its author is unknown. Treviso is
...more>>
 Oldani's Math and Music Website  Norbert Oldani
A description of the types of mathematics used for electronic music. The site includes other website links and a bibliography.
...more>>
 Oligopoly/Public Firm Model  Elmer G. Wiens; Egwald Web Services Ltd.
An economic model of an oligopolistic industry with a government firm, oligopoly, interactive and online model, with bonus systems for managers of a
public firm. Application of numerical analysis (Gradient and Newton's
methods to solve systems of
...more>>
 Olimpíada Brasileira de Matemática  Sociedade Brasileira de Matemática (SBM)
The Olimpíada Brasileira de Matemática (OBM) is a competition open to all students enrolled in Brazil's fundamental or middle studies. Browse or download archived exam problems and solutions dating back to 1997. Read news about olympiads, or the journal
...more>>
 Oliver Byrne's edition of Euclid  Digital Mathematics Archive, Univ. of British Columbia
An unusual and attractive edition of Euclid was published in 1847 in England, edited by an otherwise unknown mathematician named Oliver Byrne. It covers the first 6 books of Euclid, which range through most of elementary plane geometry and the theory
...more>>
 Oliver Knill
Research, teaching, and media by this preceptor in Harvard's math department. Knill began in dynamical systems, tackling first ergodic and spectral theoretical questions, then probability theory and elementary number theory. This led to his "passion for
...more>>
 Oliver Sin
Theorems and likenesses of mathematicians painted, drawn, and sculpted on canvases, guitars, shoes, and other media by an EasternEuropean contemporary painter who mixes Neoexpressionism, Street Art, Dadaism, conceptual, and political art.
...more>>
 OMatrix  Harmonic Software, Inc.
An interactive analysis and visualization program for Windows. Provides extensive analysis and graphic capabilities, an integrated debugger, a profiler, a fullscreen editor and a matrixoriented interpreted language, with analysis functions in the following
...more>>
 On Beyond Newton: from Simple Rules to Stability, Fluctuation, and Chaos (Serendip: Complex Systems)  Bryn Mawr College
An interactive exhibit on homeostasis/autonomy/chaos centered around population dynamics. The phenomenon of rules giving rise to not only order but also disorder, and, beyond that, to previously unknown forms of order, is the terrain currently being explored
...more>>
 Once in a Millennium (Math Chat)  Frank Morgan, MAA Online
Challenge: The year 2000 can be represented as the sum of consecutive integers:
2000 = 398 + 399 + 400 + 401 + 402. The year 2001 can be represented as the sum of consecutive integers: 2001 = 1000 + 1001. In fact, every year in the millennium from 2000
...more>>
 On Constructivism  Susan Hanley
"The constructivist approach opens new avenues for learning as well as challenges for the teacher trying to implement it." Hanley outlines problems in traditional teaching methods, describes constructivism as a possible solution, and reviews research
...more>>
 On Deciding Whether a Surface is Parabolic or Hyperbolic [PDF]  Peter G. Doyle
An application of Rayleigh's method to the classical type problem for Riemann surfaces, which is really just the same random walk problem, only instead of walking around on an infinite graph the walker is diffusing around on a surface. The aim will be
...more>>
 
