 The Encyclopedia of Mathematics  Ulf Rehmann, EditorinChief
With articles originally from Kluwer Academic Publishers' online Encyclopaedia of Mathematics (EoM), this uptodate, graduatelevel, openaccess math reference wiki boasts more than 8,000 entries on over 50,000 notions in the subject. Contribute to topics
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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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 EnglishSpanish Numbers  EnchantedLearning.com
Read words and pronunciation guides for the numbers zero (cero) through twelve (doce). Link to a number matching quiz printout or a number writing printout.
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 Equation Search  Octahedron, LLC
Browse common equations in algebra, geometry, trigonometry, calculus, probability, and finance; or perform keyword searches by equation name, variable name, constant name, and category.
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 EquationSheet.com  E. Brian Welch
A searchable database of equations, constants, symbols, and units. Equations listings include Latex code and MathType 5.0 Copy/Paste. Symbols listings include HTML code equivalents. Registered users may store equations, constants, symbols, and units of
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 Equipped for the Future: Fundamentals  Equipped for the Future, National Institute for Literacy
Begun in 1994, the National Institute for Literacy’s Equipped for the Future (EFF) initiative started the development of a framework for adult learning content standards. These content standards were constructed to strengthen the ability of adult education
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 EquPlus  Maria Chernenko
An index of math and science equations, rendered in TeX, MathML, png image files, and MathType. Browse categories such as algebra, calculus, geometry, signal processing, trigonometry, and statistics. See also EquPlus's unit conversions, constants, and
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 Eric Weisstein's World of Scientific Biography  Eric Weisstein. Wolfram Research
The World of Biography briefly outlines the discoveries and advances of over 250 mathematicians, and includes links to publications with more historical details about the individuals. Each notecardlike bio puts a face to the entries in MathWorld, Weisstein's
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 Esri
Developers of geographic information systems (GIS). Math education books include GIS Tutorial, Fun with Global Positioning Systems (GPS), and the series Our World, which features software, lessons, data, and assessments. ESRI's ArcLessons library freely
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 EuclideanSpace  Martin Baker
Introductions to algebra, geometry, calculus, discrete math, and statistics, particularly where relevant to 3D programming. In each subsection, Baker lays out notation and defines key terms to the right, in grey boxes with brown headers.
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 The Euler Archive
The Euler Archive is an online resource for Leonhard Euler's original works and modern Euler scholarship. The searchable database provides access to his original publications, references to available translations, and current research. Also available
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 The Euro  European Central Bank
On January 1, 2002, euro banknotes and coins were put into circulation. This site has sections for: euro banknotes and coins, getting ready for the euro, information for organizations, a children's zone, background to the euro, and news and events.
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 Evalwave.com  Ryan Ingram
Search or browse these lists of the first ten billion prime numbers and the factors of the first one hundred million numbers.
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 Every Student Succeeds with STEM  100Kin10
Directories, legislative updates, mobilization toolkits, social media action packs, and other tools and resources to catalyze action and support the kinds of engagement with education leaders, policymakers, teachers, parents, STEM professionals, and others
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 Excel Champs  Puneet Gogia
Tips, tricks, tutorials, functions, formulas, charts, and more resources for increasing productivity with Microsoft's spreadsheet application.
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 FactMonster: 2006 Winter Olympics  FactMonster.com; the Learning Network
The Fact Monster site, created as part of Information Please from Pearson Education, offers a variety of interesting links for the Winter Olympics in Torino, Italy, taking place February 10  26. The site includes olympic history, sports previews, a timeline,
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 FactMonster: Math  FactMonster.com; the Learning Network
Almanac of information on numbers, measurement, tables and formulas, and money; with special features and online games and quizzes.
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 Famous Mathematicians
Biographies of Ada Lovelace, Al Khwarizmi, Alan Turing, Albert Einstein, Alexandre Grothendieck, Alfred North Whitehead, Andrew Wiles, Archimedes, Aryabhata, Bernhard Riemann, Bertrand Russell, Blaise Pascal, Brahmagupta, Carl Friedrich Gauss, Charles
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 FanGraphs
Major and minor league baseball statistics and analysis, including graphs, splits, game logs, play logs, spray charts, plate discipline, PITCHf/x, strike zone heat maps, and more for every ballplayer and team.
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 Fibonacci  James Grant
Pages about Fibonacci the mathematician, the sequence that bears his name and its relationship to the Golden Ratio, as well as how the Fibonacci numbers occur in nature.
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 Formula Conversion  Mike Krone
Convert distances, lengths, areas, volumes, weights, masses, speeds, fuel economies, grade point averages (GPAs), and more, each with a formula showing unit changes and dimensional analysis.
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 Formula Database  students at the University of WisconsinMadison
FormulaDatabase is a free webbased math and physics equation search engine. It is an open collaborative project like a wiki, which will allow anyone to add and edit its content.
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 Fractal Music: Research, Publications, and Compositions by Harlan Brothers  Harlan J. Brothers
In 2003, Benoit Mandelbrot suggested to Harlan Brothers that he undertake a rigorous treatment of the subject of fractal music. Here is an overview of Brothers’ subsequent research, including papers, definitions, and examples.
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 General Tables of Units of Measurement  Office of Information Services, National Institute of Standards and Technology (NIST)
Tables of metric units of measurement; tables of U.S. units of measurement; notes on British units of measurement; tables of units of length (international and survey), area (international and survey), capacity (dry and liquid volume measure), mass not
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 Geometry formulas  Sergey Kondratov
Geometry formulas, each with interactive calculators: perimeters, areas, surface areas, volumes, radii, and more for plane shapes and bodies.
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 George Washington School Copy Book  Library of Congress
Scans of a school copy book handwritten by the future first U.S. President in 1745, when 14 or 15 years old. Together with a second book, these reveal geometrical definitions and problems, surveying, mensuration, multiplication and division, simple interest,
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 Get Help With Your Math Homework  Cramster.com
Find homework solutions from text books, lecture notes, and solved exams written by college professors for their courses. Subscription fees required. Ask questions and answer other members' questions "for self practice, karma points and goodwill" on the
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 Google Scholar  Google Labs
Google Scholar is a subset of the larger Google search index, consisting of fulltext journal articles, technical reports, preprints, theses, books, and other documents. Use the Advanced Scholar Search to confine search results to engineering, computer
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 The Greatest Mathematicians of All Time  James Dow Allen
Rankings and capsule mathematical biographies of the 100 greatest mathematicians of all time, with discussion that covers great mathematicians' own selfappraisals; prizes and medals; omissions; proposed candidates; comparisons with other "top 100" lists
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 The Handley Math Page  John Handley High School Mathematics Department
David Pleacher posted Problems of the Week in his classroom every week since 1968, and posted them online  with solutions and names of students who correctly solved them  from 1998 until his retirement in 2006. See also his lesson plans and worksheets,
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 HandsOn Science Centers  International  Mark W. Maimone
This page contains pointers to public museums worldwide with a strong emphasis on interactive science education. Links to home pages of these museums; some reviews.
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 High Rank Elliptic Curves with Prescribed Torsion  Andrej Dujella, Zagreb
The highest rank currently known for an elliptic curve over Q with each of
the possible torsion groups.
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 A History of Mathematical Notations  Florian Cajori
"In this history it has been an aim to give not only the first appearance of a symbol and its origin, but also to indicate the competition encountered and the spread of the symbol among writers in different countries...." The first volume of Cajori's
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 History of Measurements  Tiffany Chambers
Capsule histories of measurement (length, volume, weight, time) and select measurement tools (the sundial, water clock, hourglass, and chronometer; the barometers; the mercury hermometer).
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 History of Science, Technology, and Medicine  WWW Virtual Library (WWWVL)
A searchable online service established to keep track of information facilities in the history of science, technology and medicine. Sites are available alphabetically or by scientific field, source, exhibitions, institutions, regions, a historical biographical
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 História da Matemática  Centro de Competência Nónio da Malha Atlântica
Uma colecção de problemas de diferentes civilizações, ao longo de diferentes períodos da história. Contandose a origem e história de alguns problemas ou tipo de problemas. Cultúras incluem Egipto,
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 Homework H(e)aven  Morris County Library
Recommendations, strategy, and pointers to search engines and favorite sites for finding reliable information for students' assignments.
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 How Stuff Works
A site devoted to explaining the world in a way that is both informative and entertaining. Content is designed to be understandable for people of all ages and education levels.
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 How To Excel  John MacDougall
Tips, tricks, tutorials, templates, keyboard shortcuts, a free ebook and video course, and more datarelated resources for mastering Microsoft's spreadsheet application. A former theoretical math student and former actuary, MacDougall describes himself
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 Inhaltsverzeichnis Mathematik  C. Eisenhut
German language primers on arithmetic and basic operations, solving equations and inequalities, functions, probability and statistics, geometry, and more.
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 Institute for Learning  University of Pittsburgh
Researchbased curriculum, tools, and professional development designed to build the capacity of teachers, administrators, and systems to provide students with high quality instruction and learning opportunities. See especially What We Know, Principles
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 International Salary Income & Expenditure Database  Bernard Parent, World Salaries Group
The International Salary Income & Expenditure Database provides an
international comparison of average salary for various professions and an
international comparison of average personal income & expenditure.
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 International Unit Conversion Calculator
Comprehensive unit conversion calculator with 20+ categories such as heat and temperature, pressure, volume, area, density, time, speed, velocity, force, angle, power, energy, frequency, computer, electric current, electric capacitance, currency, calendar,
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 Job Offers in Mathematics  myScience
Mathematics job offers, as collected by an international job board for scientists, researchers, and engineers. Position categories include regular employment, scientific officer/scientific assistant, junior researcher/PhD position, lecturer, senior researcher/postdoc,
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 K12 Teaching Materials (Mathematics Archives)  University of Tennessee, Knoxville (UTK)
An extensive list of Internet sites with significant collections of materials that can be used in the teaching of mathematics at the K12 level. Organized into categories: lesson plans, schools, software and other K12 Internet math sites.
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 K12th Grade Mathematics Textbook Analysis  Jim Kelly
An analysis of a number of elementary and secondary school mathematics textbook series, using 1000 commonly used conceptual, operational and notational terms, intended to help education professionals match curriculum needs to existing materials. Also
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 Knotology / Snapology  Heinz Strobl
Strobl describes snapology as the origami of wireframe polyhedra, in which edges form "frames" around the faces of Platonic and Archimedean solids. See, in particular, an online PowerPoint introduction to snapology; and instructions for folding objects
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 Listservs  Murry Bergtraum High School for Business Careers (MBHS)
A compilation of listservs on the Internet: email discussion groups of individuals who discuss particular subjects. Select those listservs to join and subscribe to them. Once on the list post a message which proclaims your desire to be a mentor or to
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 Logical Laws  Alex Sakharov
This page contains a collection of logical laws of the firstorder logic. The collection is based on Kleene's collection (from his books 'Introduction to Metamathematics' and 'Mathematical Logic') and contains a few additions. The laws holding in classical
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