 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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 The Moonshine Page  CICMA, Québec
The monster simple group, M, is the largest sporadic finite simple group. "Moonshine" is a term first coined by Conway and Norton in 1979 to describe the surprising and mysterious connections between M (and also other finite sporadic simple groups) and
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 More Complicated Than It Seems  Kate Nonesuch
In this review of the literature of approaches to adult numeracy instruction, Kate Nonesuch asks the question, "How can ABE math instructors apply research findings to their own teaching practice?" Through an extensive literature review and ongoing discussions
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 Morley's Miracle  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
Interactive demonstrations and a detailed proof of Morley's Miracle: that the three points of intersection of the adjacent trisectors of the angles of any triangle form an equilateral triangle. With linked references to other proofs.
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 Moscow Mathematical Society  Kolmogorov Library Project
The Legacy of A. N. Kolmogorov  April 25, 1903  October 20, 1987. A. N. Kolmogorov was President of the Moscow Mathematical Society from 1964 to 1966 and from 1973 to 1985. This page lists addresses by Kolmogorov at meetings of the Moscow Mathematical
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 Move Over Fermat, Now It's Time for Beal's Problem  Keith Devlin (Devlin's Angle)
Beal's Problem is like Fermat's, but instead of focusing on equations with one exponent, n, there are three: m, n, and r. Thus, Beal's equation looks like this:
xm + yn = zr. The idea is to look for whole number solutions to this equation where the solution
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 MP Mathematical Physics (Front for the Mathematics ArXiv)  Univ. of California, Davis
Mathematical Physics 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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 MPRESS, the Mathematics Preprint Search System  Judith Plümer, Roland Schwänzl
The Mathematical Preprint Search System (MPRESS) is an index of mathematical preprints  not a full text archive  from Index national des prépublications et thèses en mathématiques en France, JABaPub / Preprints from Austria, MathN / DMathNet.preprints,
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 MSRI: Mathematical Sciences Research Institute
Dedicated to the advancement and communication of fundamental knowledge in mathematics and the mathematical sciences; to the development of human capital for the growth and use of such knowledge; and to the cultivation in the larger society of awareness
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 m@th IT
A "platform to promote, propagate, and mediate applied mathematics and computer sciences," with emphasis on cryptography, number theory, financial mathematics, logic and knowledge representation, and quantum computation. In particular, m@th IT offers
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 Multidimensional Analysis  George W. Hart
A brief introduction to Multidimensional Analysis, a generalization of linear algebra that incorporates ideas from dimensional analysis. The central idea is that vectors and matrices as used in science and engineering can be thought of as having elements
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 MultiDimensional Vector Product  Zurab Silagadze
Simple proof that multidimensional generalization of the vector product is only possible in seven dimensional space.
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 Multigrid Algorithm Library  Ulrich Ruede; German Scientific Computing Pages
Multigrid (MG) methods are fast linear iterative solvers based on the multilevel or multiscale paradigm. The typical application for multigrid is in the numerical solution of elliptic partial differential equations in two or more dimensions. MG can be
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 Multirate Signal Processing Group  Univ. of Wisconsin  Madison
Members' research, software developed by the group, references; people, publications, other links.
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 MultiRes Modeling Group  California Institute of Technology
The Caltech MultiRes Modeling Group is a research group within the Computer Science Department under the leadership of Prof. Peter Schröder, working closely with the Graphics Group. Its research touches on many areas of computer graphics, but the
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 Multiresolution Signal Processing Group  University of Minnesota
The group's research consists of developing and applying multiscale signal processing techniques and wavelets in the design of high quality interactive audio, image and video multimedia databases and coders, optimal data acquisition schemes for radar,
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 Multisimplex: Rapid Experimental Optimization  MultiSimplex AB
A Windowsbased software for experimental design and optimization. The site features method descriptions, a searchable database, free downloads, and full product, contact, and ordering information.
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 Multivariate polynomial interpolation  Shayne Waldron
A summary of some ongoing investigations into the error in multivariate interpolation. This page is organised to more generally serve those interested in multivariate polynomial interpolation (error formulae and computations). Work on differencing, multipoint
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 MUltlog  Gernot Salzer et al.
MUltlog is a system that takes as input the specification of a finitelyvalued firstorder logic and produces a sequent calculus, a natural deduction system, and clause formation rules for this logic. All generated rules are optimized regarding their
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 MUltseq  Gil, Salzer
MUltseq is a generic sequent prover for propositional finitelyvalued logics. It is intended as companion for MUltlog, which computes optimized sequent rules from the truth tables of a finitely valued logic. MUltseq uses these rules to construct derivations
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 MuPAD: Multi Processing Algebra Data tool  The MuPAD Group at University of Paderborn
MuPAD is a general purpose computer algebra system for symbolic and numerical computations. Users can view the library code, implement their own routines and data types, and can also dynamically link C/C++ compiled modules to meet their preferences for
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 Museum of the History of Science  Oxford University, U.K.
The Museum houses a collection of historic scientific instruments in the Old Ashmolean on Broad Street, Oxford, covering almost all aspects of the history of science, from antiquity to the early twentieth century. Particular strengths include the collections
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 The Mutilated Checkerboard in Set Theory  John McCarthy
An 8 by 8 checkerboard with two diagonally opposite squares removed cannot be covered by dominoes each of which covers two rectilinearly adjacent squares. This site presents a set theory description of the proposition and an informal proof that the covering
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 MVC (Metroplex Voice Computing)
Hands and mousefree arithmetic and math programs for the physically impaired student who cannot use the keyboard. Voiced mathematics products include: ArithmeticTalk (grades 15, for addition, subtraction, division, and multiplication); MathTalk (grades
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 Myronn Hlynka's Queuing Theory Page  Dr. Myron Hlynka
Provides general information and links to books, researchers, software,
humour, and applications of queuing theory/ queues/wait times.
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 NANet  Jack Dongarra, Director; Netlib software repository
A system developed to serve the numerical analysis community and other researchers, composed of two independent databases: Email and White Pages (a directory service). Also the NA Digest, a weekly collection of articles on topics related to numerical
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 NA Numerical Analysis (Front for the Mathematics ArXiv)  Univ. of California, Davis
Numerical Analysis 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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 NASA Technical Report Server (NTRS)  National Aeronautics and Space Administration
Keyword search of the following databases: Ames Research Center; Astronomy & Astrophysics (ADS); Dryden Flight Research Center; Glenn Research Center; Goddard Institute for Space Studies; Goddard Space Flight Center; ICASE; Jet Propulsion Laboratory;
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 National Academy of Sciences
A private, nonprofit, selfperpetuating society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare. The Academy has a mandate to advise
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 National Center for Health Statistics (NCHS)  Centers for Disease Control and Prevention
The source for information about health and vital statistics in the United States. View tables of important statistics online or download data sets and reports (often in PDF format.)
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 National Foundation for the Improvement of Education (NFIE)  National Education Association
NFIE provides teachers, other school employees, and higher education faculty and staff with opportunities to develop and test solutions to the challenges facing American public education through grants, technical assistance, professional collaboration,
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 National Institute of Adult Continuing Education (NIACE) (U.K.)  National Institute of Adult Continuing Education (NIACE) (U.K.)
The National Institute of Adult Continuing Education (NIACE) aims to encourage all adults to engage in learning of all kinds. It seeks to accomplish this through advocacy, development and research, consultancy, training, and more.
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 National Physical Laboratory  United Kingdom Department of Trade and Industry
The United Kingdom's National Standards Laboratory. The searchable site contains year 2000 countdown; news and information on upcoming symposia and other conferences and events; usability services; dimensional metrology; a pressure and vacuum section;
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 National Research and Development Centre
The National Research and Development Centre (NRDC) is a consortium of partners, led by the Institute of Education in the United Kingdom. It was established by the Department for Education and Skills as part of the Skills for Life Strategy. NRDC is dedicated
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 National Science Foundation (NSF)  U.S. Government
An independent U.S. government agency responsible for promoting science and engineering through programs that invest over $3.3 billion per year in almost 20,000 research and education projects. Overview of the NSF home page; Visitor Information; Staff
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 Nature: International Weekly Journal of Science  Macmillan Publishers Ltd.
Sciencepolicy news, archives and indices, web specials (a collection of fulltext articles and webonly material), job openings, events and announcements, a Nature meetings guide, a marketplace, science update (for the general reader), and Nature past
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 Nauty  Brendan D. McKay; Australian National University
A program for computing automorphism groups of graphs and digraphs that can also produce a canonical labelling.
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 NBody / Particle Simulation Methods  Amara Graps
An article summarizing different methods for modeling the gravitational interaction of an arbitrary number of particles, including the particleparticle, treecode, and symplectic methods. Mirrors at http://galileo.mpihd.mpg.de/~graps/other/nbody.html
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 The nCategory Café  John Baez, David Corfield, and Urs Schreiber
A blog devoted to "that heady interface between physics, mathematics and philosophy." Read posts, many with MathML, that date back to August, 2006.
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 Nearest Neighbors and Voronoi Diagrams (The Geometry Junkyard)  David Eppstein, Theory Group, ICS, UC Irvine
An extensive annotated list of links to material on Delaunay triangulations and Voronoi Diagrams.
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 Neil J. A. Sloane
Neil Sloane's research ranges far and wide and includes coding theory, sphere packing, lattices and quadratic forms, packing lines, and planes, spherical codes and designs, quantizing, geometry, combinatorics, the design of experiments, integer sequences,
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 NEOS Guide (NetworkEnabled Optimization System)  The Optimization Technology Center
A thumbnail sketch, outlines of the major algorithms, and pointers to software packages on optimization and its various subdisciplines: integer programming, stochastic programming, network programming, bound constrained, nonlinearly constrained, linear
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 Nerdy TShirt  Thomas Reuter
Humorous math equation tshirts. Each garment features a math equation followed by a corresponding word related to some characteristic of the equation. For example, a shirt displaying an equation for changes in acceleration bears the word "Jerk." Each
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 Nesting Software for Cutting Glass, Metal, Cutting Optimizer  Tom Tang
Nesting software for reducing scrap and generating optimum layouts for
cutting and nesting in sheet metal layout, fabrication, glass, building
panel, and woodworking industries. Samples and free demo downloads.
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 Nesting Software: PLUS (PaneL Utilization Software)
Software for reducing scrap and generating optimum layouts for cutting in sheet metal layout, fabrication, glass, building panel, and woodworking industries. Samples and free demo downloads.
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 Netherlands Society for Statistics and Operations Research (VVS)
Membership information and benefits, awards, and events of interest. Also available in Dutch.
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