- Combinatorial Geometry (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine
An extensive annotated list of links to material consisting of problems in which one starts with a geometric figure (say a polytope) but then considers abstract incidence properties of it rather than its metric properties. Most tiling and coloring problems
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- Combinatorial Mathematics Society of Australasia (CMSA)
Information for members of a society formed to facilitate, encourage, foster and cherish the branch of mathematics known as combinatorics throughout Australia, New Zealand and their neighbouring countries. Rules; members; minutes of meetings; annual general
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- Combinatorial Object Server (COS) - Frank Ruskey; Dept. of Computer Science, Univ. of Victoria, B.C., Canada
Specify a type of combinatorial object, together with specific parameter values, and COS will return to you a list of 200 such objects. Generation pages: permutations, combinations, various types of trees, unlabelled graphs, linear extensions of posets,
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- Combinatorica - János Bolyai Mathematical Society, Springer-Verlag
An international journal that publishes research papers in English in a variety of areas of combinatorics and the theory of computing, with particular emphasis on general techniques and unifying principles.
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- Combinatorics and Graph Theory - Department of Mathematics, Umeå University, Sweden
Home page of the Combinatorics Group. Members and research projects, seminars, archives of downloadable software, combinatorial and graph theoretical data, and preprints.
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- Combinatorics - Dave Rusin; The Mathematical Atlas
A short article designed to provide an introduction to combinatorics, loosely the science of counting, studying families of sets (usually finite) with certain characteristic arrangements of their elements or subsets, and asking what combinations are possible,
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- Combinatorics (Graphics Archive, Special Topics) - The Geometry Center
Enumeration problems, and other problems involving counting, including meanders.
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- Combinatorics (MathPages) - Kevin Brown
About 40 "informal notes" by Kevin Brown on combinatorics: Dedekind's problem, cumulative permutation sequences, the factorial number system, Hardy and Ramanujan on partitions, solving magic squares, collecting k complete sets of coupons, and many more.
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- The Combinatorics Net and Annals Of Combinatorics - Bill Chen
Links to combinatorics articles, groups, conference reports, seminars, journals, books, typesetting and graph drawing, software, preprints, open problems, research announcements, news and stories, and related sites. The Annals of Combinatorics publishes
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- Combinatorics, Probability & Computing - Cambridge University Press
Now published bimonthly, the journal covers combinatorics, probability theory, and theoretical computer science. Topics covered include classical and algebraic graph theory, extremal set theory, matroid theory, probabilistic methods and random combinatorial
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- Combinatorics Research Group - Pure Maths Department, The Open University
A group interested in graph theory, design theory, the history of combinatorics, and combinatorial computing. The Group runs the Open University Winter Combinatorics Meeting near the end of January each year.
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- Combinatorists of New England
A series of one-day conferences mostly held at Smith College in Northampton, MA. The Combinatorists of New England meet five times a year. This Web site provides information about future meetings and links to participants' papers available electronically.
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- Combined Membership List - AMS, SIAM, MAA, AMATYC
The searchable Combined Membership List (CML) includes the names and addresses of all persons who were members of the American Mathematical Society (AMS), Mathematical Association of America (MAA), Society for Industrial and Applied Mathematics (SIAM),
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- Comedy Tonight, Math Style! - Ivars Peterson (MathLand)
Edward Burger and Colin Adams aren't yet as well known as such famous comedy teams as Laurel and Hardy... but they are not only performers but also math professors at Williams College in Williamstown, Mass. They bring antic energy, slapstick humor, and
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- Comments on Mathematics and Education - E. Lee Lady, University of Hawaii
Notes on the teaching and learning of math. What Is Mathematics? What Makes Mathematics So Hard? My Attitude Towards Teaching. Universities and Learning. Also e-mail comments from readers, on: Teaching Maths in the public schools; Giving Students Power
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- A Common Book of Pi - Neal Carothers
A brief history of extended precision approximations of pi, including Archimedes' method for estimating pi, a proof that pi is irrational, a page full of formulas used to estimate pi over the centuries, and a brief look at a modern algorithm used to compute
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- Common Lisp the Language, 2nd Edition - Tom Bylander
Links for most Common Lisp functions (and other entities) to the portion of the online Common Lisp manual where they are defined. Since the index was automatically generated from the online manual, some functions may not be included in this index. Also,
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- Common Mistakes in College Mathematics - Eric Schechter
Pointers for students about mistakes in general mathematics and calculus. Errors include: everything is additive, loss of invisible parentheses, incorrect writing of fractions, derivative of x to the x, unbalanced differentials, and naive answers for
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- Commons-Math: The Jakarta Mathematics Library - Phil Steitz, The Apache Software Foundation
Commons Math is an open source Java library of lightweight, self-contained
mathematics and statistics components. Download releases; post to the wiki; read the users guide and project documentation.
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- Communicating Mathematical Expressions on the WWW - Ping
A semantic expression notation known as MINSE (a Medium-Independent Notation for Structured Expressions) with a deployed implementation that makes expressions a reality for the scientific and mathematical Internet community. The aim is to help the scientific
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- Communicating Mathematics with Hypertext - The Geometry Center
An archive of resources, including lecture notes, sample pages and programs, and links to software useful for scientific Web site design and management. The archive is based on the materials developed for a a short course by the same name sponsored by
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- Communication and Information, including Encryption - Dave Rusin; The Mathematical Atlas
See the Report of the Working Group on Cryptology and Coding Theory National
Science Foundation, April 17-18, 1997. History; applications and related fields and subfields; textbooks, reference works, and tutorials; software and tables; other web sites
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- The Community of Ordinary Differential Equations Educators - Yong, Darryl; and Borrelli, Robert, Principal Investigators
The Community of Ordinary Differential Equations Educators (CODEE) seeks to improve the teaching and learning of ordinary differential equations (ODEs) through modeling, computer experiments, and other active learning projects. Freely download expository
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- Community of Science, Inc. (COS) - Alfred R. Berkeley, Chairman
A collaborative network of scientists and their institutions. Its goal is to accelerate science and promote the visibility and funding of scientific research. COS has been publishing on the Web since February 1994 and currently works with 200,000 scientists,
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- Commutative Rings and Algebras - Dave Rusin; The Mathematical Atlas
A short article designed to provide an introduction to ring theory. Commutative rings are sets like the set of integers, allowing addition and (commutative)
multiplication. Of particular interest are several classes of rings of interest in number theory,
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- Commutative Semigroups (Catalogue of Algebraic Systems) - John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition and examples of commutative semigroups. A link to general information about semigroups.
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- Comparative Chronology of Money - Glyn and Roy Davies
This site chronicles monetary history from ancient times to the present day. The information presented is based on the book, "A History of Money." The timeline starts from 9000 BC and goes through 2002 AD.
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- A Compendium of Common Probability Distributions - Michael P. McLaughlin
An online (PDF) encyclopedia listing probability distributions and their properties.
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- A compendium of NP optimization problems - Crescenzi & Kann
A continuously updated catalog of approximability results for NP optimization problems. Because no NP-complete problem can be solved in polynomial time (unless P=NP), many approximability results (both positive and negative) of NP-hard optimization problems
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- CompGeom - mailing list - Sariel Har-Peled
A Web archive of discussions on computational geometry mailing lists.
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- Compgeom Mailing Lists - Ken Clarkson
Mailing lists for announcements, and discussions, for those working or interested in computational geometry. The listserver for compgeom is provided using netlib, which is an electronic library at research.bell-labs.com that includes software, bibliographies,
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- Compleat Sine Wave, Fourier Series - Bill Finzer, Key Curriculum Press
Two "FPU Necessary [Geometer's] Sketches," one that illustrates Fourier series and another that draws a sine wave and lets you change the phase, amplitude, and frequency dynamically.
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- Complete Analysis of the Binary GCD Algorithm - Brigitte Vallée, Université de Caen, France
Lecture notes (summary by Cyril Banderier). Introduction; A Ruelle Operator for a Tauberian Theorem; The Other Two Parameters; All Roads Lead to Rome; References. In English.
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- Completing Latin Squares - Ivars Peterson (MathTrek)
Using only the numbers 1, 2, 3, and 4, arrange four sets of these numbers into a four-by-four array so that no column or row contains the same two numbers. The result is known as a Latin square... in Latin squares of order 4, each row (and each column)
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- Complex Analysis (Graphics Archive, Special Topics) - The Geometry Center
Research involving maps of one or more complex variables.
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- Complexification - Jared Tarbell
View interactive, open source Java applets of fractals and other mathematically significant graphics.
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- Complexity International - An Electronic Journal of Complex Systems Research
A refereed journal for scientific papers dealing with any area of complex systems research. The theme of the journal is the field of complex systems, the generation of complex behaviour from the interaction of multiple parallel processes. Relevant topics
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- The Complexity of Geometric Constructions - François Labelle
Efficient constructions with straight-edge and collapsing compass (the geometric tools of Euclid). The question of what can and cannot be constructed with this model of computation is basically answered by Galois Theory. This document deals with the minimum
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- Complexity On-line - University of New South Wales
A scientific information network about complex systems, structures and processes that involve non-linearity. Topics in complexity include artificial life, cellular automata, chaos, evolutionary computation, fractals, genetic algorithms, neural networks
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- Complex Numbers - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A series of articles on the algebraic structure of complex numbers and their application to solving various problems in algebra and geometry. Several of the discussed features, for example, real and complex products, are drawn from very recent literature
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- Complex Numbers (Manipula Math) - International Education Software (IES)
Java applets to investigate complex numbers, their reciprocals, powers, and other selected functions. (One function leads to a fractal.)
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- Complex Numbers & Trig - Alan Selby
Complex Numbers and the Distributive Law for Complex Numbers, offering a short way to reach and explain trigonometry, the Pythagorean theorem, trig formulas for dot- and cross-products, the cosine law, and a converse to the Pythagorean theorem. A geometric
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- Complex, Technology Based Problems in Calculus - Math Department, Rose-Hulman Institute of Technology
Nearly 100 problems with a higher level of complexity than traditional textbook problems and that foster use of a computer algebra system. Problem categories include: anti-differentiation, data fitting, difference equations, differential equations, and
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- Complex Variables (S.O.S. Mathematics) - Dept. of Mathematical Sciences, Univ. of Texas at El Paso
An online course: learning units presented in worksheet format review the most important results, techniques and formulas in college and pre-college complex variables. Complex Numbers: Basic Definitions and Arithmetic, The Complex Plane, The Polar Form
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- Comprehensive TeX Archive Network (CTAN) - Jens Toivo Berger Thielemann
Links to more than 30 FTP sites around the world that provide TeX-related software.
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- Compressible Aerodynamics Calculator - William J. Devenport
Computes the standard relations for compressible flow of a perfect gas.
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- comp.soft-sys.math.mathematica - Math Forum
A moderated discussion group that provides an opportunity for users of the software package Mathematica to help each other; occasionally, Mathematica's developers participate as well. Read and search archived messages; and register to post to the discussions.
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- comp.soft-sys.matlab - Math Forum
An unmoderated discussion group, available via the Math Forum's archive (from which you can view messages, search them, and register to post), or in mailing list or newsgroup format, providing an opportunity for users of the software package Matlab to
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- The Computational Beauty of Nature - Gary William Flake
Computer Explorations of Fractals, Chaos, Complex Systems, and Adaptation: a companion site for a book by Gary William Flake, "affectionately known as 'The Fish and Chips Book'." Contains applets and source code.
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- Computational Complexity (CC) - Birkhäuser Verlag AG, Switzerland
CC presents outstanding research in computational complexity. Its subject is at the interface between mathematics and theoretical computer science, with a clear mathematical profile and strictly mathematical format. You may download a free electronic
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