 Getting Slammed in Tennis  Ivars Peterson (MathTrek)
One arena where it's possible to test the apparent relationship between psychological momentum and sequences of successes or failures is bestoffive tennis matches. The question is whether the result of the first set changes the probability of success
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 GEUP  Ramón Alvarez
Interactive geometry software. Capable of handling transformations, analytic geometry, polar and cartesian coordinates, and other topics. Applicable to mechanics, optics, drawing and graphic design. Uses macros to speed construction process. Requires
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 Giant Fractal Pecan Pie
The creators of this tutorial explain that they wanted to figure out how to design a large pie that still strikes a balance between the filling (area) and the crust (perimeter). View the steps they took to construct a very enormous pecan pie in the shape
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 GiNaC is not a CAS  Bauer, Frink, Kreckel
GiNaC is an iterated and recursive abbreviation for "GiNaC is Not a CAS" (Computer Algebra System). It is designed to allow the creation of integrated systems that embed symbolic manipulations together with more established areas of computer science (like
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 Girls' Angle
Girls' Angle is a math club for girls and a supportive community for all girls and women engaged in the study, use and creation of mathematics. By mentoring, publishing the bimonthly Bulletin, and solving math problems on commission, networking professional
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 Giuseppe Zito Pictures
A gallery of fractal images generated by chance from a database of around 50,000 planar dynamical systems by Zito's program, Ufattr, with some commentary.
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 G. J. Chaitin
Currently a member of the computer systems and software department at the IBM Watson Research Center in New York, Chaitin created algorithmic information theory, which combines, among other elements, Shannon's information theory and Turing's theory of
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 G J Chaitin Home Page  Greg Chaitin
From the author of Algorithmic Information Theory, Information, Randomness & Incompleteness, InformationTheoretic Incompleteness, The Limits of Mathematics, The Unknowable, Exploring Randomness, Conversations with a Mathematician, From Philosophy
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 Global Analysis, Analysis on Manifolds  Dave Rusin; The Mathematical Atlas
A short article designed to provide an introduction to global analysis, which studies the global nature of differential equations on manifolds, that is, dynamical systems. In addition to local tools from ordinary differential equation
theory, global
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 Global Analysis Resource Center (GARC)
Initiated in 1991 as a Science Research Center funded by the Korea Science and Engineering Foundation (KOSEF). The main objective of GARC is the cooperative study of various analytic problems based on manifolds, encompassing analysis, differential geometry,
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 Globally Accessible Statistical Procedures (G.A.S.P.)  R. Webster West, Dept. of Statistics, Univ. of South Carolina
Online statistical routines for data analysis procedures or for educational procedures. Java or HTML Forms procedures include kernel density estimation, statistical procedures for the AIDS epidemic, an applet for understanding the spread of a simple epidemic,
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 Global Optimization Algorithms  Theory and Application  Thomas Weise
Home page, featuring an ebook (PDF format, approximately 10MB) devoted to global optimization algorithms, which are methods of finding optimal solutions for given problems. It especially focuses on evolutionary computation by discussing evolutionary
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 Global Optimization  Loehle Enterprises; eNoteBooks Ltd.
A Mathematica package that provides a suite of tools for solving nonlinear optimization problems, as well as a variety of other applications such as finding the roots or zeros of a nonanalytic function.
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 Globewide Network Academy (GNA)
A worldwide nonprofit consortium of educational and research organizations for support of online courses and distance education. Its mission is to improve education by creating a marketplace for courses as well as to offer administrative and technical
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 Glossary  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A glossary of terms that also serves as an alphabetical index to Bogomolny's site. Each term is linked to an illustrated essay.
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 Glossary of Internet Terms  Matisse Enzer
An ongoing project, currently comprised of over 100 terms from ADM to digerati to Router to WWW.
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 Glossary of Mathematical Formulas  Keiichi Suzuki
This glossary of math terms and formulas, succinct enough for viewing on handhelds and other smaller screens, covers geometry, set theory, algebra, abstract algebra, trigonometry, vectors, matrices, calculus, complex functions, special functions, orthogonal
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 A Glossary of Statistics  Norman Marsh; Laboratory of Statistical Genetics, Rockefeller Univ.
In particular, rerandomisation statistics, organized alphabetically by letter, with in addition links to other statistics glossaries.
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 The GMAT Tutor  Matt Kirisits
TheGmatTutor specializes in tutoring services for the Math portion of the GMAT, Graduate Management Admissions Test. The site includes howto videos, strategy articles, and GMAT sample questions.
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 Gmsh  JeanFrançois Remacle, Christophe Geuzaine
A threedimensional mesh generator, primarily Delaunay, with builtin pre and postprocessing facilities, freely available for most UNIX platforms. Demo files and a short manual page are provided.
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 GN General Topology (Front for the Mathematics ArXiv)  Univ. of California, Davis
General Topology 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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 GNU Octave  John W. Eaton, Dept. of Chemical Engineering, Univ. of Wisconsin
A highlevel language primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically. The site includes lists of updates, source and binaries, documentation (including
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 GNU Octave Repository
Custom scripts, functions and extensions to GNU Octave. Site includes alphabetical list of functions available for download and a related mailing list, with archives.
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 The Goal Angle Problem  Ken Koedinger
Two solutions to the following problem: as you are running down a soccer field with the ball, when is the angle subtended by the goal at its maximum? There is also a sketch illustrating a construction used in one of the solutions (quadrature of the rectangle).
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 Go Directly to JAIL!  Andrew Pinzler
The longterm probabilities in the Parker Brothers game Monopoly: an exploration into which Monopoly game board properties are occupied more frequently than others. Developed from a high school science project, this site is organized as a lab writeup.
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 God's Number is 20  Tomas Rokicki
An outline explaining how every Rubik's Cube™ permutation can be solved in twenty moves or fewer, established algorithmically by machine proof in July, 2010. Read "How did we solve all 43,252,003,274,489,856,000 positions of the cube?" and "What
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 The Gods of Sugarscape  Ivars Peterson  Science News Online
Computer simulations furnish a means of gleaning insights into human social and economic behavior. The Sugarscape model is more a metaphor than a realistic depiction of society, but by providing insights into population growth, resource use, migration,
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 GoKnow!  GoKnow, Inc.
GoKnow, Inc. intends to be the leader in technology pervasive, standardsbased, scientifically validated curriculum and educational tools. GoKnow offers tools for handheld devices' use in the classroom, professional development and consulting services.
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 Goldbach's Prime Pairs  Ivars Peterson (MathTrek)
Prime numbers serve as building blocks in the mathematics of whole numbers. Evenly divisible only by themselves and one, primes are a rich source of speculative ideas that mathematicians often find simple to state but difficult to prove. The Goldbach
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 The Golden ratio  MacTutor Math History Archives
Linked essay on the history of the golden ratio (golden number, golden section), from Euclid through Martin Ohm's book, Die reine ElementarMatematik. With references and other related web sites.
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 The Golden Section Ratio: Phi  Ron Knott
Contents: What is the Golden Ratio (or Phi)?  A simple definition of Phi, A bit of history; Phi to 2000 decimal places; Phi and the Fibonacci numbers  Another definition of Phi, A formula for Phi using a continued fraction, Rational Approximations
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 The Golden Section, Related to Music and Natural Sciences  Martin Morgenstern
An extended bibliography related to the golden section in music, mathematics, architecture, biology, etc. Articles and books are listed, and linked to Amazon.com or other sources for purchase where possible.
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 GoodQuestions Project  Dept. of Mathematics, Cornell University
The GoodQuestions project seeks to improve college calculus instruction by adapting two methods developed in physics instruction — ConcepTests and JustinTimeTeaching. GoodQuestions is a pedagogical strategy that aims to raise the visibility of the
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 Google
A search engine that analyzes the way Web pages are linked to one another and automatically generates lists of Web resources based on frequency of linking.
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 Google Calculator
Google's calculator feature evaluates math expressions. The google.com and the Google Toolbar search boxes now handle queries such as: 56*78, half a cup in teaspoons, (G * mass of earth)/(radius of earth ^ 2), and 1.21 GW / 88 mph. Google provides instructions
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 Google Groups Discussion: TINspire  Rex Boggs, moderator
For users of the TINspire handheld, Rex Boggs has set up a moderated discussion group at Google Groups. The purpose of the discussion is to share knowledge and problems to make the technology more productive, enjoyable and enlightening. If you are interested
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 Google Public Data Explorer  Google Labs
The Google Public Data Explorer is available for beta testing and comment. It is designed to make large datasets easy to explore, visualize and communicate. As the charts and maps animate over time, the changes in the world become easier to understand.
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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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 Googol+: Arbitrary Precision Calculator for Windows  Atelier Web
Arbitrary Precision calculator handlings a large range of operations from basic to advanced like factoring and continued fractions.
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 Googolplex  Frank Pilhofer
The American mathematician Edward Kasner once asked his nineyearold nephew to invent a name for a very large number, ten to the power of one hundred; and the boy called it a googol. He thought this was a number to overflow people's minds, being bigger
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 Gordon Royle's Homepage: Research  Gordon Royle
Catalogues and tables of interesting combinatorial objects: small graphs, cubic graphs, symmetric cubic graphs, vertextransitive graphs, Cayley graphs (by group), vertextransitive cubic graphs, cubic cages and higher valency cages, planar graphs, cubic
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 Got Math?  Dave Radcliffe
Blog by a community college math instructor and selfdescribed "GeoGebra fanatic." Posts, which date back to December, 2010, have included "Stacking cannonballs," "Counting with Integrals," "A Paradoxical Dissection," "Gelfand's Question," "Imagining
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 Government Affairs and Education (AMS)  American Mathematical Society
Government Affairs: news from Washington on science funding; calls for action; policy statements; recent statements by the mathematical community; federal budget information; how to contact Congress; science policy events; and a link to the AMS Committee
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 Government Communications Headquarters  Government Communications Headquarters, United Kingdom
British intelligence: take a brief, illustrated tour of GCHQ history through World War I, World War II and cracking the German Enigma code, the Cold War, and the post Cold War world; read about career opportunities for mathematicians and others; apply
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 Gowers's Weblog  Timothy Gowers
Blog by a Cambridge University professor interested in analysis, combinatorics, arithmetic combinatorics, and "general questions about mathematics, and how it is discovered and transmitted  hence this blog." Posts, which date back to September, 2007
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 Graceful Graphs  Michael Brundage, Dept. of Mathematics, Univ. of Washington
A paper about current studies on graceful labeling of graphs. Of particular interest is the conjecture that all trees are graceful graphs. Includes: definition of a graceful graph; methods of labeling graphs; how many graceful graphs are there?; known
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 GRACE: Graphical Ruler and Compass Editor  Hertzmann, Warren, Goldan, Felleisen; Dept. of Computer Science, Rice University
Interactive Euclidean Geometry: using a Java applet, this course focuses on a classical topic: the ruler and compass constructions of Euclid. GRACE allows the student to define constructions and their associated proofs interactively. This site contains
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 Grad Blog  American Mathematical Society
A "blog for and by math grad students." Posts, which date back to February, 2009, have included "Finding an Advisor," "Navigating Seminars — A First Year's Perspective," "Five Pieces of Advice for the Beginning Teaching Assistant," "Choosing a graduate
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 Graduate Programs in Mathematics Learning and Teaching  Drexel University
Drexel University’s online Master of Science in Mathematics Learning and Teaching represents a highly evolved synthesis of researchbased best practices and a collaboration between the School of Education’s leaders in the field of mathematics education
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 Graduate Recruitment and Actuarial Jobs  Hewitt UK
Graduate career opportunities and internships with Actuarial Jobs at Hewitt UK.
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