 Around the Dartboard  Ivars Peterson (MathLand)
The numbers on a standard dartboard have the following order, going clockwise starting at the top: 20, 1, 18, 4, 13, 6, 10, 15, 2, 17, 3, 19, 7, 16, 8, 11, 14, 9, 15, and 5. Why this particular order? A possible criterion for designing a dartboard is
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 ARPACK  Danny C. Sorensen
Anonymous ftp archive for ARPACK, a software package for solving largescale symmetric, nonsymmetric standard, or generalized eigenvalue problems. Industrialscale problems with as many as 250K degrees of freedom have been solved with this package. Future
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 Art and Mathematics  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about art and mathematics, such as "Do you know ways that art can be linked to mathematics?"
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 artchives / artists / MATH  SunSITE
The SunSITE Mathematical Art Gallery from the SITO Artchives  images by math artists (under copyright). Fractals and many other kinds of images; with biographies of the artists.
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 Artelys Kalis  Artelys SA
Artelys Kalis is an extensible constraint programming framework enabling the user to define its own constraints and search heuristics. It also includes several global constraints. It is available as a C++ library and its port to XpressMosel environment
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 Articles on Mathematics  Subramaniyan Neelagandan
Articles in four formats: DVI, PDF, PS, and TEX Code. The Distribution of Prime Numbers & Integer Factorization; The Simplification of Fermat's Last Theorem; Exploration of Collatz's Conjecture.
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 Articulation in Mathematics Education  EXTEND  Perspectives in Mathematics Education
Links to articles on creating smoother transitions between education and work, between school and college and within sectors of higher education, and about preparing teachers to facilitate these transitions and students to respond to new environments.
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 Artificial Intelligence Resources  NRC  National Research Council (NRC) of Canada
Internet resources useful to AI researchers: Archives for newsgroups and mailing lists; bibliographies; books; companies; conferences; employment opportunities; FAQs; journals; location index (various AI research groups, organized geographically); list
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 Artistic Exploration of Hilbert Space Filling Curve  Don Relyea
Artist Don Relyea uses a Hilbert space filling curve to create generative
modern art. Page includes interactive demonstrations with source code
examples and and background information on Hilbert curves with links to
further documentation.
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 An Artist's Timely Riddles  Ivars Peterson  Science News Online
The late 19th and early 20th centuries were a time of great popular interest in visualizing a fourth spatial dimension  a concept that appeared to offer painters and sculptors, in particular, an avenue of escape from conventional representation. Moreover,
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 Artlandia Kaleidoscope  Artlandia, Inc.
A fully interactive program based on and available free with the purchase of the software program Artlandia (requires Mathematica 3.0 or higher; available for all platforms that run Mathematica). It
is as easy to use as an ordinary kaleidoscope  create
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 Artlandia  Software for Programmable Creative Graphic Design  Artlandia, Inc.
A Mathematicabased application for artistic interpretation of data and creating mathematical and algorithmic art. The software provides a selection of tools for constructing geometrical objects from numerical arrays, distributing geometric shapes over
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 Artlandia SymmetryWorks  Artlandia, Inc.
A plugin for Adobe Illustrator that automates creation of surface designs and ornaments based on seventeen wallpaper groups.
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 Art Matrix Fractals  H. Smith, J. Staller
Some basic information about fractals; a fractal gallery; and a twohour video for sale on the subject of fractals and chaotic dynamical systems. What is a fractal?; Product line; Wholesale policy; Introduction to Fractals; etc.
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 The Art of Asking Thought Provoking Questions in the Mathematics Classroom  Carmen Bellido, Uroyoan Walker, Keith Wayland
A position paper in PDF format: a "How To" guide for developing higherlevel conceptual questions that provoke students to think. Several techniques for modifying traditional questions are illustrated with examples ranging from elementary to high school
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 The Art of Calculating Real 2D Vectors  Hero van Jindelt
Freeware: Print the text for pupils. Numerical 2Dcalculator. We don't need
words like imaginary, complex number, or Argand Diagram any moresave them
for a history lesson. Ordinary vectorcalculation with a "new" (centuriesold) multiplication,
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 The Art of Fractals  Joseph Trotsky; Artis Fractal Gallery
An online fractal exhibition with images grouped into the themes Paintings, Legends and Fairy Tales, Places, Flowers, Foliage, Trees and Forest, Fauna, Landscapes, Classic, Geometric, Marine, Mystic, and Zodiac.
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 The Art of Problem Solving  Richard Rusczyk
An online school and community, with a message board and widely used textbooks, e.g., The Art of Problem Solving by Sandor Lehoczky and Richard Rusczyk. See, in particular, the AoPS's Math Jams, guided improvisational problem solving sessions. Also, learn
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 The Art of Renaissance Science: Galileo and Perspective  Joseph W. Dauben, McMurry University
A hypermedia essay devoted to the genius of Galileo and the relation between his role in the Scientific Revolution and the equally remarkable achievements of Renaissance artists reflected, in part, in the discovery and application of mathematical perpective.
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 The Art of the Experiment: Educational Software  Symynet; Jeff Rasmussen, Ph.D.
Elearning software that teaches statistical analysis in the context of experimental design. Program information, free demo, pricing and discount information, and ordering information are all available on the site.
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 Art of the Grid  Ivars Peterson (MathTrek)
The idea of transferring information from one grid to another has a long history inboth mathematics and art. When the blank grid differs from the original grid, a drawing can suffer intriguing distortions. In art, the result is sometimes called an anamorphic
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 Art of the Tetrahedron  Ivars Peterson (MathTrek)
"Any four points in space that are not all on the same plane mark the corners of four triangles. The triangles in turn are the faces of a tetrahedron. It's the simplest of all polyhedrasolids bounded by polygons... To sculptor Arthur Silverman of New
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 Arts & Crafts Class: Let's Fold Origami  Japan Window Project, Stanford University and NTT
Directions for folding an origami crane and a yakko (in the Edo Period, a Yakko was known as a male servant or a valet to a highclass samurai. The figure shown is a representation from the waist up. The diamond shape is the head and it is possible to
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 arXiv.org ePrint archive  Los Alamos National Laboratory (LANL)
A major site for mathematics preprints that has incorporated many formerly independent specialist archives including alggeom, functan, dgga, qalg, autofms, cdhg, MAGNUS, Several Complex Variables, Logic Eprints, Commutative Algebra, Dynamical Systems,
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 ASA Student Poster Competition  American Statistical Association
A competition that encourages students and teachers K12 in the United States and Canada to display data in creative ways. The purpose of the poster is to tell a statistical story visually, illustrating conclusions that can be drawn from data. With links
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 ASCIIMathML  Peter Jipsen, Chapman University
The ASCIIMathML.js script uses a calculatorstyle syntax and your own ASCII or XHTML editor to incorporate mathematical formulas on web pages. See examples by visiting the site with Internet Explorer 6 + MathPlayer or Mozilla/Netscape 7.
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 ASCII Shop  ridiculopathy.com
Graphically lay out and format ASCII art. Toggle through standard keyboard symbols, then "paint" them onto the monospace "canvas," and apply effects such as clearing, lightening, darkening, filling, stroking, blurring, and flaring. To capture a textfriendly
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 Ask Adam Online Mathematics Tutors  Adam Moore
K12 students are invited to fill out a Web form and submit a math question (only one per submission). Tutors may register to answer questions. Some answers are available in Ask Adam's searchable archives. Math tools include online graphing calculator,
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 Ask a Mathematician / Ask a Physicist
"Your math and physics questions answered." Blog posts, which date back to October, 2009, originate from questions posed via email, at the duo's stand at Burningman, in person by friends, or "this one time in Union Square": "How do I find the love of
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 Ask An Expert  Pitsco
Experts on subjects from Amish to Zookeeping. Select from 12 categories with over 300 web sites and email addresses where you can find experts to answer your questions. Ask an Expert is a directory of links to people who have volunteered their time to
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 Ask A Science/Math Expert  Stevens Institute of Technology, Center for Improved Engineering and Science Education (CIESE)
Links to science and math askanexpert services, organized into general science, astronomy and space science, biology and life sciences, physics, oceanography, geology, and weather.
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 AskAScientist Archives  Newton BBS, Argonne National Laboratory
Frequently asked astronomy, biology, chemistry, computer science, engineering, environmental, general, physics, and mathematics question posts, replies from NEWTON, an Electronic Bulletin Board System (BBS) for Science, Math, and Computer Science K12
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 Ask Dr. Callahan  Dale Callahan
For the homeschooling parent who needs high school math and science training material: textbooks, videos for the parent and child, teaching guidelines, tests and test grading guides as well as support for the duration of the course. Courses in geometry,
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 Ask Dr. Math FAQ  Math Forum
Frequently asked questions from the archives of the Math Forum's question and answer service for K12 math students and their teachers, with classic problems, formulas, and other recommended math sites.
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 Ask Dr. Math  Math Forum
The Math Forum's question and answer service for K12 math students and their teachers. A searchable archive is available by level and topic, together with a FAQ.
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 Ask Dr. Universe  Washington State University
A site that allows young users to ask or find interesting questions and puzzles to solve. It features a question of the day and an archive of questions and answers by faculty at Washington State University; featured questions; and links to related sites.
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 The Askeyscheme of hypergeometric orthogonal polynomials and its qanalogue  Koekoek, Swarttouw; Delft University of Technology
A 1998 report: definition, orthogonality relation, threeterm recurrence relation, second order differential or difference equation, forward and backward shift operator, Rodriguestype formula and generating functions of all classes of orthogonal polynomials;
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 Ask Jeeves for Kids  Ask Jeeves, Inc.
An easy question&answer site where kids can ask questions and find more questions on the topic to choose from. Example: Where can I find information on division?
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 Ask Mr. Calculus  Diamond Bar High School
Advanced Placement (AP) Calculus AB and BC free response questions with solutions, dating back to 1997.
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 Ask Mr. Calculus  Howard Alcosser
Answers to every Advanced Placement (AP) Calculus AB and BC exam since 1997.
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 Asknumbers.com
Online conversions between different measures of length, weight, temperature, pressure, energy, frequency and more.
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 Assessing Mathematical Proficiency  Alan Schoenfeld
Downloadable Cambridge University Press volume of a 2004 conference held by the Mathematical Sciences Research Institute (MSRI) that brought together a diverse collection of stakeholders in mathematics assessment to examine the goals of assessment and
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 Assessing True Academic Success: The Next Frontier of Reform  Dan Kennedy, Baylor School
Article from Mathematics Teacher 92, 46266, September 1999. "Suppose that your doctor's idea of a successful medical practice is to teach his patients how to pass every diagnostic test that he gives to them. How will you ever know if you are healthy?
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 The Assessment Challenge in Statistics Education  Iddo Gal and J. B. Garfield (eds.)
A book that discusses conceptual and pragmatic issues in the assessment of statistical knowledge and reasoning skills among students at the college and precollege (K12) levels, and the use of assessments to improve instruction.
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 Assessment  Classroom Compass
The spring 1996 issue of Classroom Compass examines assessment as an integral part of the learning cycle. One activity, Thinking Aloud About Mathematics, provides an innovative idea for assessing student learning in a high school mathematics classroom.
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 Assessment in Mathematics Teaching  Mathematics Education at The Math Forum
The Math Forum's suggested sites on assessment in mathematics education including the NCTM Standards; sessions on assessment at meetings; and selected books and articles on assessment.
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 Assessment Resource Center (ARC)  University of Missouri
The ARC "promotes the practice, enhances the understanding, and advances the use of assessment in education, business, and the professions." ARC develops and applies measurement instruments and research and evaluation services, offering project management
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 Assessment Resources: Math  Cynthia Good
A list of links to guides, standards, curricular frameworks, activities, tests, and other resources for assessment in mathematics.
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 Assessment Suggestions  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: How can I assess my students at the beginning of the year? Midyear? Throughout the year?
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 Assignment Calculator  The University of Minnesota
Enter the date you will begin an assignment and its due date, then select a subject area such as mathematics, and the Assignment Calculator will outline steps to take to complete the work on time.
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