 SciLetter.com  Scientific Networks Software, Ltd.
An equation editor email program developed mathematical correspondence. See screenshots, download a demo, and purchase.
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 sci.math  Math Forum
A very active unmoderated discussion group focused on general and advanced mathematics. Read and search archived messages; and register to post to the discussions.
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 sci.math.numanalysis  Math Forum
A discussion group for subject matter concerning numerical analysis. Read and search archived messages; and register to post to the discussions.
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 sci.math.research  Math Forum
A moderated discussion group for researchlevel mathematics. Read and search archived messages; and register to post to the discussions.
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 sci.math.symbolic  Math Forum
An unmoderated discussion group for symbolic mathematics packages. Read and search archived messages; and register to post to the discussions. Conversations in this group overlap to some extent with the Matlab and Mathematica discussion groups, but it
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 SCINET Scientific Software Framework  Coskun Oba, OBACS: Object Based Advanced Computational Solutions
High performance and high precision computational software solutions for the Microsoft .NET platform.
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 sci.nonlinear FAQ  James D. Meiss
The Frequently Asked Questions document for the newsgroup sci.nonlinear. Basic Theory, Applications and Advanced Theory; Learn More; Computational Resources. Nonlinear systems have been shown to exhibit surprising and complex effects that would never
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 Scirus  Elsevier
A search engine that searches only those web sites containing scientific content, such as university web sites and author homepages, as well as the ScienceDirect database of scientific information resources drawn from thousands of journals and books.
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 sci.stat.math  Math Forum
An unmoderated discussion group for statistics, largely at the college or research level. Read and search archived messages; and register to post to the discussions.
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 Scottish Research Information System
Provides information on Scottish universities' researchers, research groups, projects and services. Many of these include math related issuessearch for math or the topic of your choice to find them, or browse.
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 Scout Report Signpost: QA  Mathematics  Internet Scout Project
A selected set of mathrelated Internet resources chosen by the editorial staff of the Scout Report. Resources are cataloged, classified, and arranged using existing taxonomies such as the Library of Congress Classification Scheme and the Library of Congress
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 The Seaborg Center  C. Wozniak, Northern Michigan University
The Glenn T. Seaborg Center for Teaching & Learning Science and Mathematics reflects Seaborg's belief that, in today's world, each citizen must have a solid base in the understanding of and appreciation for scientific concepts and the technology to
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 Search for Math on the Internet  The Math Forum
Keyword search of all searchable archives, Newsgroup archives, Dr. Math archives, Problems of the Week, Internet Math Library, or any combination thereof.
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 Search MSRI Library Catalogue  Mathematical Sciences Research Institutes
Fill in the patterns (words or word fragment) you wish to search. The pattern can be from the title, author, subject, publisher, or series.
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 Search Netlib  Netlib Repository at UTK and ORNL
Netlib is a collection of mathematical software, papers, and databases. Another Netlib search interface (which indexes the same material) is available at
http://netlib.belllabs.com/netlib/search.html. Also search the NADigest.
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 Search New York Journal of Mathematics (NYJM)  Department of Mathematics and Statistics, State University of New York (SUNY) at Albany
Search the contents of all years of the journal, or search individual years, 1994present.
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 Search the Internet Mathematics Library  Math Forum
Select the desired Math Topic, Math Education Topic, Level, and Resource Type.
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 Search the UK Mirror Service  Higher Education National Software Archives
Formerly HENSA, this UK service maintains copies of electronic archives from all over the world, providing access to a wide range of uptodate software for those using PC's and microcomputers. The indexes searched allow you to find software held in any
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 Second Moment  Stone Analytics
A meeting place for academia and industry in the fields of applied statistics and analytics, showcasing cutting edge academic research. Also a resource for industry analysts and businesses interested in applying the latest statistical and analytical tools
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 Semidefinite Programming  Christoph Helmberg
A page for the entire semidefinite community. Links to lists of: Conferences and Workshops; Interior Point Algorithms; Geometry and Complexity; Applications in Combinatorial Optimization; Applications in Control Theory; Eigenvalue Oriented Approaches;
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 Semigroup Theory  Jim Renshaw
A directory of Semigroup Theorists, bibliographic database, and conferences in Group and Semigroup Theory. With a link to a package for doing commutative diagrams, by Paul Taylor.
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 Seminar on Advances in Mathematical Sciences  Dr. Hemen Dutta
The National Seminar on Advances in Mathematical Sciences (NSAMS) commemorated the
128th birth anniversary of Srinivasa Ramanujan Iyengar. Organized in December, 2015, by the Assam Academy of Mathematics & Department of Mathematics, Gauhati University.
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 SemiSimple Lie Algebras and their Representations  Robert Cahn
A postscript version of the book, originally published by BenjaminCummings in 1984. Chapters include: SU(2); SU(3); The Killing Form; The Structure of Simple Lie Algebras; A Little about Representations; More on the Structure of Simple Lie Algebras;
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 The SeqFan Mailing List  Olivier Gérard
A mailing list for FANs of Integer SEQuences, bilingual in French and English, with a French acronym: Suites Entières: Questions, Formules, Analyse, Nomenclature, which translates as Problems, Formulas, Analysis, and Inventory of Integer Sequences.
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 Sequuntur.com: the FREE way to mesh generation !
We are a research group offering FREE freeform triangular and tetrahedral mesh generation for open CASCADE (openCASCADE) models.
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 Series Math Study  Tue N. Vu
Formulas with proofs for many different series. Site encourages readers to submit their own contributions.
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 Set Theoretic Analysis (Topology Atlas)  Krzysztof Chris Ciesielski, Editor
An interactive encyclopedic reference for Set Theoretic Analysis, with most current research available immediately through the web and ftpcapabilities of the Topology Atlas. Contents: What is Set Theoretic Analysis?; What's new; Surveys; Preprints;
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 Set Theory  Jean A. Larson; Dept. of Mathematics, Univ. of Florida
Links to home pages of set theorists.
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 Set Theory Page  Luis E. Sanchis; Syracuse University
A collection of links to sites on the Web related to set theory.
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 SF, posets, and coxeter/weyl  John Stembridge
This is a group of combinatorics Maple packages for Unix and Mac operating systems, specifically for studying symmetric functions, partially ordered sets, root systems, and Lie algebras.
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 SG Symplectic Geometry (Front for the Mathematics ArXiv)  Univ. of California, Davis
Symplectic 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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 SHAPES  XOX Corporation
Providing advanced C/C++ libraries and applets for application developers in GeoScience, CAE, CAD, Medicine, and other industries that require geometry and topology. Their primary product is Shapes®, a geometry system. Site offers contact and product
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 SHAREWARE.COM  CNET, Inc.
Search more than 250,000 files in the former Virtual Software Library: first select the platform of your choice, then enter the word or filename to search for. You may also search for files in a specific archive here by first selecting the archive of
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 Sharp3D.Math Project Page  Eran M. Kampf
A .NET Numerics Library built in C#. It contains objectoriented classes for linear algebra, geometry and a broad range of numerical techniques for the Microsoft .NET framework. Topics covered: Matrices and Vectors, Complex Numbers, Distance Methods,
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 Shock and Vibration Software and Tutorials  Tom Irvine, Vibrationdata.com
Free downloadable Windows software and tutorials with an emphasis on acoustics, shock, vibration, and signal processing. Much of the material is based on Fourier transforms, Laplace transforms, and other mathematical functions. The author also offers
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 Short Signal Harmonic Spectra and Approximation  Dmitriev E.V.
The author writes: "Presently traditional ways to determine signal spectra are based on the expansion of functions in Fourier series or on their representation by Fourier integrals with applying a system of basis ORTHOGONAL functions. For the first time,
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 ShtetlOptimized  Scott Aaronson
Blog posts include "Teaching your students not to need a teacher," "Ten Signs a Claimed Mathematical Breakthrough is Wrong," "Essentials of complexitytheoretic standup comedy," "My take on the Koblitz affair, "Logicians on safari," and "Unparadox Contest."
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 SIAM Activity Group on Orthogonal Polynomials and Special Functions  Martin Muldoon
A group for promoting basic research in orthogonal polynomials and special functions; furthering the application of this subject in other parts of mathematics and in science and industry; and encouraging and supporting the exchange of information, ideas,
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 SIAM Journal on Discrete Mathematics  Society for Industrial and Applied Mathematics
A journal that publishes research articles on a broad range of topics from pure and applied mathematics, including combinatorics and graph theory, discrete optimization and operations research, theoretical computer science, to coding and communication
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 SIAM Journals  Society for Industrial and Applied Mathematics
The journals of the Society for Industrial and Applied Mathematics (SIAM): Applied Mathematics; Computing; Control and Optimization; Discrete Mathematics; Mathematical Analysis; Matrix Analysis and Applications; Numerical Analysis; Optimization; Scientific
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 Signal Processing Laboratory  Thomas W. Parks, Director; Cornell University, Ithaca, NY
People; wavelets and multiresolution analysis research.
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 Simon Plouffe  Simon Plouffe
Home page of Simon Plouffe, pi expert and originator of Plouffe's Inverter. Contains links to his articles and algorithms for his approximations of various constants.
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 Simons Foundation
This private foundation advances the frontiers of research in mathematics, theoretical computer science, and theoretical physics. Simons Foundation grants have established postdoctoral fellowships, promoted collaboration between researchers, created
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 Simple City  Richard Elwes
Website of the author of, among other books, Mathematics 1001, How to Build a Brain (Mathematics without the Boring Bits), and Chaotic Fishponds and Mirror Universes. Prior to lecturing at the University of Leeds, Elwes earned his PGCE (QTS) in secondary
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 Simul8  Simul8 Corporation
Developers of SIMUL8, for discrete event simulation. The company’s products include the plugins: SIMUL8 Profit, SIMUL8 OPTIMIZ, SIMUL8 TimeView, SIMUL8 Transport, SIMUL8 Process, and SIMUL8 Animation for VISIO.
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 SINGULAR  Greuel, Pfister, Schoenemann; Dept. of Mathematics, Univ. of Kaiserslautern
A computer algebra system for polynomial computations, with special emphasis on commutative algebra, algebraic geometry, and singularity theory.
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 The SISL Nurbs Library  SINTEF Applied Mathematics
A library of NonUniform Rational BSplines (NURBS) software, developed and
maintained by the Department of Geometric Modelling at SINTEF Applied Mathematics. The SIntef Spline Library (SISL) contains all the necessary functionality for building applications
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 Sketches of Topology  Kenneth Baker
Visualizations, often created with Sketchup, of low dimensional topology. Blog posts, which date back to November, 2007, have included "Twisted Saddles," "Scharlemann cycles," "Long Disks and Lopsided Bigons," "Ko Honda's Octahedral Relation," "Berge
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 Skills and Competencies Needed to Succeed in Today's Workplace  NCREL: North Central Regional Educational Laboratory; Learning Point Associates
Because the world of work is changing, the U.S. Departments of Labor and Education formed the Secretary's Commission on Achieving Necessary Skills (SCANS) to study the kinds of competencies and skills that workers must have to succeed in today's workplace.
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 SLATEC (Common Mathematical Library, Fortran)  Kirby W. Fong, Thomas H. Jefferson, Tokihiko Suyehiro, Lee Walton
An extensive publicdomain FORTRAN source code library (consisting of more than 1400 routines and 300,000 lines of code and documentation) developed and maintained by a consortium of Department of Energy and Department of Defense national laboratories.
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