 Elementary Linear Algebra  Keith R. Matthews, Univ. of Queensland, Australia
Lecture notes, in PDF, which formed the basis for a textbook on the subject. Solutions to the problems are included separately.
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 Elementary Number Theory  Michael Filaseta; University of South Carolina
Lecture notes from a course taught in fall of 1997  class notes are available in postscript format. A graph compares Li(x), Pi(x), and x/log(x).
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 The Element: Science and Math  Deja.com
Searchable archives of math and science newsgroup postings. This community aims to share resources and give people an easy way to ask questions within relevant newsgroups, providing broad discussions of mathematical concepts from beginning to advanced
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 Elements Of Design  Colleen Deery
Explore galleries of fractal art by artist Colleen Deery.
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 Elements Research
Software developers of EleGeodesic, for geodesic computation, which finds minimumlength straightestpossible path between points on a curved multidimensional manifold; EleNTorus, for nsphere, nellipsoid, and ntorus computation, which provides generic
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 Eli's Math and Logic Puzzles and Other Interesting Things  Eli Karplus
A mixed bag of problems, some geared toward the 6th grade level, others to challenge college folk, with answers for a few. Three Men in a Hotel/The Missing Dollar; The Boatman Crossing the River with Fox, Chicken, and Cabbage; Benardete's Paradox; The
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 Elliptic Curves and Elliptic Functions  Charles Daney
From The Mathematics of Fermat's Last Theorem. With a glossary; contents include: What is an elliptic curve?; The group structure of an elliptic curve; Arithmetic on elliptic curves; Further basic concepts and results.
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 Elliptic Curves and Formal Groups  Lubin, Serre, Tate
Lecture notes from a seminar, part of the Lecture notes prepared in connection with the seminars held at the Summer Institute on Algebraic Geometry, Whitney Estate, Woods Hole, Massachusetts, July 6July 31, 1964.
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 Elliptic Curves and Right Triangles  Karl Rubin; Stanford University
Slides (GIF) of lectures.
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 Elliptic Curves  Dave Rusin; The Mathematical Atlas
An area of algebraic geometry that deals with nonsingular curves of genus 1  in
English, solutions to equations y^2 = x^3 + A x + B. It has important connections to number theory and in particular to factorization of ordinary integers (and thus to cryptography).
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 Elliptic Curves II  Johan P. Hansen; Dept. of Mathematics, Ny Munkegade, Aarhus
Lecture notes in English and German, a continuation of the course: "Elliptic curves over Q and C," on modular forms and elliptic curves.
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 Elliptic Curves  Stéfane Fermigier
A collection of links on research articles on elliptic curves and related topics (applications, modular forms, Fermat's Last Theorem). Algorithmic applications; Modular forms aspects; Lcurves; High rank curves; Heights. Bibliographies. Some papers in
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 Elliptic Functions and Integrals  MacTutor Math History Archives
Linked essay covering 1655 through 1694, with accompanying description of the subject and 8 references (books/ articles).
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 Elliptic Geometry Drawing Tools  Brad Findell
Elliptic geometry calculations using the disk model. Includes scripts for: Finding the point antipodal to a given point; drawing the circle with given center through a given point; measuring the elliptic angle described by three points; measuring the
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 eloancalculator
Free online calculators for borrowing and refinancing loans (student, personal, and auto), as well as amortization.
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 El Paraíso de las Matemáticas  Xavier Ribas
Apuntes, ejercicios, exámenes, enlaces, un tema de matemáticas cada quincena, un consultorio, algo de historia, diccionario, etc.
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 El Rincón de la Calculadora Gráfica  Francisco Puerta García; Sociedad Canaria 'Isaac Newton' de Profesores de Matemáticas
Artículos de una sección de la revista NUMEROS, que sirve de foro para que los profesores de matemáticas que utilizan calculadoras gráficas en sus clases puedan intercambiar ideas, consultar dudas y mantener debates sobre los
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 Elsevier Historical Books  Elsevier BV
This video tour of the Elsevier Heritage Collection illuminates the scholarly life of the 17th century, revealing littleknown facts about the House of Elzevier, from which the modern Dutch publisher takes its name. Rare books mentioned include Galileo
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 Elsevier Science
"Information Provider to the World." Elsevier's mission is "to advance science, technology and medical science by fulfilling, on a sound commercial basis, the communication needs specific to the international community of scientists, engineers and associated
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 eMathHelp
View worked solutions to problems, or submit your own to WyzAnt.com tutors. See also eMathHelp's notes on prealgebra, algebra, calculus, differential equations, and more.
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 Embedded TEX  David McCabe
Mathematics typesetting for Word, Excel, other Microsoft Office programs, or any application that supports ActiveX. Download and install free trials. See also McCabe's tutorial, which explains the Fourier transform and Fourier series.
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 eMentoring Network  American Mathematical Society
A blog "designed to address relevant questions that students, postdoctoral researchers and junior faculty may have regarding their own advancement in mathematics," such as considering graduate school, choosing a graduate program, leveraging research experiences
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 Emergence of Chaos (There is order in chaos)  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A demonstration of how chaos emerges following a change in a parameter, with an illustrative Java applet.
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 Emilio Segrč Visual Archives  American Institute of Physics (AIP)
A collection of some 25,000 historical photographs, slides, lithographs, engravings, and other visual materials, focusing on American physicists and astronomers of the twentieth century, but including many scientists in Europe and elsewhere, in other
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 Employment and Careers (AMS)  American Mathematical Society
The AMS Employment Services section includes an overview, EIMS (Employment Information in the Mathematical Sciences) Employment Listings, a Mathematical Sciences Employment Center, Job Seeker's List, Graduate Student Services, AMS Standard Cover Sheet,
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 EMTeachline
Commercial software and online demos with thousands of fully explained, stepbystep solutions of equations, inequalities, and more. With interactive teaching algorithms for training problemdrilling skills, testmaking software, and a guide to mathrelated
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 Encyclopaedia of Tuning  Joseph L. Monzo
A dictionary of terminology, often involving math, that is used by musicians and mathematicians to discuss tuning theory.
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 Encyclopedia of Combinatorial Structures  Virginie Collette; INRIA
A site designed to be similar to Sloane's Encyclopedia of Integer Sequences but with an emphasis on sequences that arise in the context of decomposable combinatorial structures. Like the EIS, the database is searchable by the first terms in the sequence,
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 Encyclopedia of Dynamical Systems  Eugene M. Izhikevich, EditorinChief
Scholarpedia is a free, anonymously peer reviewed encyclopedia whose invited or elected scholars write articles controlled by curators responsible for their contents. Scholarpedia's encyclopedia of dynamical systems features mathematical topics such as
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 Encyclopedia of Informal Education  Infed.org
Explores key ideas, practices and thinkers in informal education, lifelong learning and social action. Includes opinion pieces, event listings, support, and other resources. Infed.org is an independent and notforprofit site created by a small group
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 Encyclopedia of the Infinite  Johann Christian Lotter
The encyclopedia of infinity consists of concise and sometimes opinionated articles covering all aspects of infinity in science, mathematics, philosophy, and religion.
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 Encyclopedia of Triangle Centers  Clark Kimberling
A searchable catalogue of hundreds of special triangle points (centroid, incenter, Hofstadter points, Yff centers, Apollonius point, etc.), with a glossary, collinearities, graphics, and links to biographical sketches of geometers, geometry software and
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 The Endeavour  John D. Cook
Cook's blog posts, which date back to January, 2008, have included "A Ramanujan series for calculating pi," "Limerick primes," "Twin prime conjecture and the Pentium division bug," "Three surprises with the trapezoid rule," "Where to wait for an elevator,"
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 Energy for Markov Chains [PDF]  Peter G. Doyle
A "very preliminary" paper touching on the Dirichlet principle, Escape probabilities and commuting time, The Monotonicity Law, and a Probabilistic interpretation of energy. PostScript and source file are available from Doyle's site.
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 Engauge Digitizer  Mark Mitchell
Software that takes a digital graph or map, and converts it into numbers. Engauge Digitizer automatically traces curves of line plots and matches points of point plots; handles cartesian, polar, linear and logarithmic graphs; supports draganddrop and
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 Engineering Formulas  eFunda
Formulas, derivations, diagrams, and online calculators. Fluid mechanics topics include the NavierStokes equation, the Bernoulli equation, Reynold's number, pipe friction, manometer, and Venturi flowrate. Mechanics and materials topics: stress/strain,
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 Engineering Mathematics  eFunda
Illustrated by Wolfram Research's Mathematica and organized into arithmetic, geometry, calculus, differential equations, series, elementary functions, special functions, orthogonal polynomials, transforms, numerical methods, statisstics and probability.
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 Engineers Edge
Formulas, design guide, and online calculators. Design and engineering topics include Reynold's number, pipe friction, mechanical tolerances, beam bending, springs, thread stress area, strain gauge application, plastic snap fit application, pressure vessel
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 EngineersExcel.com: Engineering using Spreadsheets  Nitin Mehta
Excel is commonly used in the industry for business applications and is
seldom seen as an engineering tool. This website shows how Excel can be
used for engineering applications. It provides Excel tools to Engineers,
and Engineering students, and
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 English Attack on the Longitude Problem  MacTutor Math History Archives
Linked essay covering the period from the mid17th through the mid18th century, with 9 references (books/articles).
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 The English Name of a Number  Landon Curt Noll
This program will help people obtain the names of very large numbers. You may enter a number or the power of ten you want. It will give you the name, or the digits, of your number in American or English style.
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 The Enigma Machine  Russell Schwager
This Java applet simulates the operation of an Enigma machine, based on the one used by the Germans in World War II to encrypt military messages. With information on the history and workings of the mechanical Enigma machine; a brief description of how
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 The eNLVM Project: Promoting Student Achievement in Mathematics through Educator Collaboration [PDF]  Pam Buffington, Burt Granofsky, eNLVM Project
This article explores the use of the eNLVM from the perspectives of Curriculum Developer, Math Content Expert, Special Education Professional, and Classroom Teacher. The article paints a picture of how multiple educators can collaborate to use the eNLVM
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 ENT: A Pseudorandom Number Sequence Test Program  John Walker
A program that performs various tests on a number sequence to analyze its degree of randomness. Download includes the MSDOS file ent.exe, C++ source code, and a Makefile to run ent in Unix. Links to a Java chisquare calculator.
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 Entropia.com
The Global Internet Community for Science and Mathematics Distributed Research Computing, Entropia.com is a community dedicated to performing real research on a massive scale using ordinary home and office computers connected through the Internet. Entropia.org's
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 Entropic Groupoids (Catalogue of Algebraic Systems)  John Pedersen, W. Edwin Clark; Dept. of Mathematics, University of South Florida
Definition, examples, and references about entropic or medial groupoids. Links to related terms in the Catalogue.
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 Enumeration of the Binary Trees (Catalan Numbers)  Ivan Galkin
For each number of nodes, n, there is a certain number of possible binary tree configurations. These numbers form a sequence of integers with respect to n. A useful way to describe an integer sequence is to construct a generating function...
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 Environmental Issues: A Mathematical Modeling Approach  Jan Pearce, Mathematics and Computer Science Department, Berea College
Assignments, syllabus, and other classroom materials for this course that discusses the state of the planet. "Local and global issues such as air, land, and water pollution; energy production and consumption; forest, wetland and other resource management;
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 EnVision: A tool for live webbased communication in the mathematical sciences  Marco Pollanen
EnVision is a Webbased whiteboardchat program that assists in the live communication of mathematical content. It has been used to conduct online office hours in introductory courses. It allows students to log in anonymously and thus reduce anxieties
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 eOptimization.com
An informational meeting place for anyone interested in optimization software. Conduct an "application search" to find case studies, press articles, and vendors about the use of optimization in industries ranging from aerospace and apparel to sports and
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