 Matrix Market  Applied and Computational Math Division, NIST
A visual repository of test data for use in comparative studies of algorithms for numerical linear algebra, featuring nearly 500 sparse matrices from a variety of applications, as well as matrix generation tools and services. Browse by collection, matrix
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 Matroids and Signed Graphs  Steven R. Pagano; Dept. of Mathematics, Univ. of Kentucky
Contents: Introduction and some notes; What is a matroid; Some common examples of matroids; Circuits, bases, rank, closure; Duality; Minors; Representability; Connectivity; What the heck is a signed graph?
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 Matroid Theory  Sandra Kingan
Matroids are an abstraction of several combinatorial objects, among them graphs and matrices. The word matroid was coined by Whitney in 1935 in his landmark paper "On the abstract properties of linear dependence." In defining a matroid Whitney tried to
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 Matthew Conroy's Page of Mathematics  Matthew Conroy
An analytic number theorist's mathematical notes on the p + 1 problem, dice problems, a sequence related to a conjecture of Schinzel, statistics connected to the Grand Tours (Tour de France, Giro, and Vuelta), integer sequence noise, a Javabased dictionary
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 Maxima: a GPL CAS based on DOEMACSYMA
Free, opensource computer algebra software. Extensive notes for users and programmers, and a bugreporting system, available here.
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 MaxValue  John R. Schuyler
Decision analysis tools and techniques for engineers, scientists, managers, analysts, and project managers. Training (courses and assistance) in decisionmaking process, economic evaluation, problem solving, business literacy, and project risk management.
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 Measurement Databases for Industry & Science  G. Raymond Peacock
An open, searchable directory of measurement data resources and databases
from industry & science including properties of matter, specialty
calculators, units and conversions, glossaries and data collections plus
free software.
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 Medium.Stanford.edu
A free worldwide exchange server archiving scientific talks and presentations in RealAudio format. You may submit an audio cassette and transparencies with your talk or presentation, and it will be heard by other scientists on the Internet. Also message
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 Meetings and Conferences (AMS)  American Mathematical Society
AMS Meetings (international, national, and sectional, plus howtos on submitting an abstract, presenting a paper, and organizing a special session); AMS Conferences (how to submit a proposal, short courses, summer research institutes, joint summer research
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 Melkamu Zeleke
Melkamu Zeleke is a graduate student in combinatorics. His papers and solutions to some problems from American Mathematics Monthly and Math Magazine may be downloaded as TeX, .dvi, or PostScript files. The code for accompanying Maple packages RADON,
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 Melvyl Catalog: California Digital Library (CDL)  Regents of the University of California
A tenth library for the University of California (UC). A collaborative effort of the UC campuses, it is responsible for the design, creation, and implementation of systems that support the shared collections of the University of California. Includes the
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 Members & Activities (AMS)  American Mathematical Society
Includes information and resources on Membership in the AMS (becoming a member, individual, institutional, associate, and corporate membership, FAQ); Membership Benefits (Membership List, eMail Forwarding, Meetings and Conferences, Notices, Bulletin);
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 Mentoring Program for Women in Mathematics  IAS/Park City Mathematics Institute (PCMI)
Undergraduates, graduate students, and researchers are eligible to attend the IAS/Park City Mathematics Institute. The emphasis of the Women's Program is on mathematics learning and research, specifically with regard to the PCMI Summer Session; mentoring
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 Mersenne.org  George Woltman
A domain created as a home for the Great Internet Mersenne Prime Search (GIMPS).
Mersenne primes are named after the French monk Marin Mersenne. The goal of the search is to find ever larger Mersenne primes. You can join this search by downloading the
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 Mersenne Prime Freeware  Conrad Curry
An extensive list of software, with descriptions, for various operating systems, as well as libraries and developeroriented links.
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 Mersenne Primes: History, Theorems and Lists  Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
When 2n1 is prime it is said to be a Mersenne prime. Page contents: Early History; Perfect Numbers and a Few Theorems; Table of Known Mersenne Primes; The LucasLehmer Test and Recent History; Conjectures and Unsolved Problems; Remote pages on Mersennes:
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 Metamath  Norman Megill
A site for proofs and logic. Includes: Metamath Solitairea Java applet that lets you build simple proofs in logic and set theory (builtin: the axioms of logic and ZFC (ZermeloFraenkel with Choice) set theory) with source code and other web resources;
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 Methods of Mathematical Physics /Mathematical Methods in Science and Engineering/Mathematical Techniques for Biology and Medicine/Methods of Theoretical Physics  Reinaldo Baretti Machín
Lecture notes, with FORTRAN and MatLab codes.
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 METIS: Family of Multilevel Partitioning Algorithms  George Karypis
A family of programs for partitioning unstructured graphs and hypergraphs and computing fillreducing orderings of sparse matrices. Includes serial and parallel graph partitioning and sparse matrix ordering and serial hypergraph partitioning.
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 MG Metric Geometry (Front for the Mathematics ArXiv)  Univ. of California, Davis
Metric Geometry 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.
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 MGNet  Craig C. Douglas
A repository for information related to multigrid, multilevel, multiscale, aggregation, defect correction, and domain decomposition methods, used primarily by scientists and engineers to solve partial differential equations on serial or parallel computers.
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 Michael Singer
Differential (and difference) Galois theorist, algorithmic analyst, and computer algebraist, and professor at North Carolina State University. Available here: books and papers, some in PDF, PostScript, or .dvi versions; course notes for Computational
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 Michelitsch Fractals  Michael Michelitsch
A gallery of "Burning Ship" and other fractal images generated by Albert Mürle's TurboBasic and TurboPascal programs iterating nonlinear feedback equations.
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 Military Operations Research Society (MORS)
A society whose goal is to enhance the quality and usefulness of military operations research. Publications: the MOR Journal and PHALANX Online, an electronic variant of the quarterly MORS bulletin.
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 Miniball Project: Smallest Enclosing Ball of Balls  Bernd Gärtner, Institut für Theoretische Informatik, Switzerland
Code for finding the miniball, or smallest enclosing ball, of a given set of balls in ddimensional Euclidean space. Download available in C++
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 Minitab Inc.
"Making data analysis easier." MINITAB is statistical software that can be used for basic statistics, regression analysis, analysis of variance, tables, multivariate analysis, statistical process control, reliability/survival analysis, nonparametrics,
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 Minorities & Mathematics  Key Issues in Mathematics at the Math Forum
Find sites relevant to mathematics and minorities such as African Americans, Hispanics, and Native Americans in the Math Forum's Internet Mathematics Library.
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 MinutePhysics  Henry Reich
"Cool physics and other sweet science" instructional videos, most shorter than four minutes long. Reich narrates while sketching stick figures and other simple line drawings on a whiteboard that sometimes also incorporates photos or video clips: "Proof
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 MIPLIB 3.0  Rice University
An electronic library of realworld pure and mixed integer programs. MIPLIB has become a standard test set used to compare the performance of mixed integer optimizers. Included, for each problem is certain auxillary information describing the structure
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 Miscellaneous: projection, modelling, rendering  Paul Bourke
Projection and displays, data visualization, photography and image manipulation, signal processing, and more.
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 The Missed Physics of SourceFree Magnetic Fields  Bibhas R. De
This paper proposes a fundamentally new discovery in physics, suggesting that Maxwell's equations have another solution beyond the electromagnetic waves: The sourcefree static magnetic field structures. See also Source Free Magnetic Structures, a paper
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 MIT Aero/Astro Scientific Visualization  Massachusetts Institute of Technology
Visualization software developed at MIT: Visual2, Visual3 and pV3 are software packages aimed at aiding in the analysis of a particular suite of problems. They
were designed for Computational Fluid Dynamics but are more general. Each deals with a programmerdefined
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 MIT OpenCourseWare: Mathematics  Massachusetts Institute of Technology (MIT)
Massachusetts Institute of Technology (MIT) invites you to view the available courses through their MIT OpenCourseWare site. The course materials that are used in the teaching of almost all MIT's undergraduate and graduate subjects are available on the
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 MIT Press  Massachusetts Institute of Technology
The only university press in the United States whose list is based in science and technology, committed to exploring new fields and modes of inquiry. MIT Press publishes about 200 new books a year and over 40 journals, and is a publishing presence in:
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 Mixed Sums of Primes and Other Terms  ZhiWei Sun
The webpage collects materials related to ZhiWei Sun's recent conjectures on mixed sums of primes and other terms which "seem more difficult than the Goldbach conjecture." Sun offers prizes for proofs and counterexamples, and invites ideas and suggestions.
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 MLAB  Civilized Software, Inc.
An advanced mathematical and statistical modeling system running on PC, Mac, SUN, RS600, DECAlpha, Convex, SGI, NeXT (Motorola, Intel, and HP). A tool for mathematical and statistical exploration, and for solving simulation and modeling problems such
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 MMach 1.3: Khoros 2.1 Toolbox on Mathematical Morphology  Adriano Nagelschmidt Rodrigues, Junior Barrera, Roberto de Alencar Lotufo, Roberto Hirata Jr.
Mathematical morphology is a general theory that studies decompositions of operators between complete lattices in terms of some families of simple operators: dilations, erosions, antidilations and antierosions. This theory is largely used in computer
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 Modern Algebra  Math Forum
Links to some of the best Internet resources for modern algebra: Web sites, software, Internet projects, publications, and public forums for discussion.
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 Modern Analysis Online  Professor E. Brian Davies
This is a portal to postgraduate lecture notes and higher level material
in Mathematical Analysis which may be downloaded without charge from the
web. It also has some general links.
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 The Modular Curves X_{0}(N)  Bas Edixhoven
Download a series of lectures in postscript format, given at the ICTP Summer school in August, 1997, on rational torsion of elliptic curves over number fields.
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 The Modular Forms Database  William Stein
A collection of tables related to modular forms, elliptic curves, and abelian varieties. With links to the WatkinsStein tables of elliptic curves; the Elliptic Curves Information Calculator; PARI & MAGMA (computer algebra) online calculators; links
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 Modulef: Methods and Tools for Scientific Computing  Michel Bernadou
The MODULEF project was dissolved on December 31, 1995. The members of this project created the GAMMA project and the MOSTRA preproject. Activity report of the project (1995) (French  abstract in English), research reports of the project, videos and
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 Mohamed Ali Hafiz
Home page of a math professor at Najran University. Research by the applied mathematics PhD has appeared in European Journal of Scientific Research, Palestine Journal of Mathematics, British Journal of Mathematics & Computer Science, and other publications:
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 Molecular Information Theory and the Theory of Molecular Machines  Tom Schneider
Introduction to the use of information theory in studying molecular biology. The author is part of the Molecular Information Theory Group, a section of the Laboratory of Computational and Experimental Biology at the National Institutes of Health in Frederick,
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 MOL  The Association for Mathematics of Language  The Institute for Research in Cognitive Science, The University of Pennsylvania
A special interest group of the Association for Computational Linguistics (ACL) that promotes work in all aspects of mathematical linguistics. Download or link to publications from annual meetings; contact authors and other members; subscribe to their
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 Moment of Truth  Keith Devlin (Devlin's Angle)
"Just what do we mean by a 'proof'? It seems that mathematicians  and to avoid generating too many letters of complaint, let me hasten to rephrase that as 'we mathematicians'  are somewhat schizophrenic when it comes to answering this question. When
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 Monge's Theorem and Desargues' Theorem, Identified  Thomas Banchoff; The Geometry Center
A unit that explains why Monge's Theorem and Desargue's Theorem are really two versions of the same theorem. Contains illustrative GSP sketches.
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 Monocosm: Introduction to Linear Xenology  Vladimir Trifonov; American Mathematical Society (AMS)
A ToposTheoretic Approach to the Foundations of Physics. The FourDimensionality Problem: Why does observable spacetime look fourdimensional? is related to the Compactification Problem. The Effective Metric Signature Problems: Why is the metric of signature
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 Monte Carlo Simulation  National Physical Laboratory
This online MonteCarlo simulator accepts parameters, then generates results for each run and a summary output.
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 Monthly Labor Review Online  Bureau of Labor Statistics
A journal from the Bureau of Labor Statistics that publishes both public and private research into the labor force, the economy, employment, occupational injuries and illnesses, wages, prices, etc. Abstracts of and excerpts from current articles may
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