- Xtoys - Michael Creutz
Download cellular automata simulators for the Xwindows operating system, or a PostScript document describing them. See also the gallery of examples.
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- The XYZ GeoBench for experimental geometric computation - Dr. Peter Schorn
The XYZ GeoBench (eXperimental geometrY Zurich) is a workbench for geometric computation on Macintosh computers. It provides an interactive user interface similar to a drawing program which can be used to create and manipulate geometric objects such as
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- Yahoo! Science: Mathematics: History - Yahoo! Inc.
Searchable math history links: Mathematicians, Pi, and miscellaneous links.
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- Yahoo! Science: Mathematics: Numerical Analysis: Numbers: Specific Numbers: Pi - Yahoo! Inc.
A searchable collection of approximately 100 WWW pages having to do with Pi, in the following categories: Calculating Pi; Clubs; Decimal Digits; History; Holidays; Mnemonics; Poems; Search Engines; Web Directories.
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- Yahoo! Science: Mathematics - Yahoo! Inc.
All the best on the Web in math including Indices, alphabetically listed by category: Academic Papers; Algebra; Applied Mathematics; Books; Calculus; Chaos; Combinatorics; Complex Systems; Conferences; Education; Employment; Entropy; Equations; Ethnomathematics;
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- Yahoo! Search Options - Yahoo!
Search all of Yahoo by keyword.
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- Yahoo - Yahoo! Inc.
Search the entire Yahoo database or within categories and subcategories. Major categories include Arts & Humanities; Business & Economy; Computers & Internet; Education; Entertainment; Government; Health; News & Media; Recreation &
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- Yarrow Home Page - Jan Zwanenburg
A proof-assistant for Pure Type Systems (PTSs). In Yarrow you can experiment with various pure type systems, representing different logics and programming languages. A basic knowledge of Pure Type Systems and the Curry-Howard-de Bruijn isomorphism is
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- Y-Math Mathematical Models - Jan de Koning
Models and building boxes for education include magnetically connectable "mathmaker" and "polylinks," and tetrahedron puzzles. Other polyhedral furniture and housewares include cube money-boxes of plywood, copper, and brass; dodecahedron bottle openers;
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- You Have Found The Prisoners' Dilemma (Serendip: Playground) - Bryn Mawr College
Play a non-zero-sum game where the best strategy for a given player is often one that increases the payoff to one's partner as well. The rules: on each turn of the game, you and your opponent must choose, without knowing the other's choice; following
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- Young Mathematicians' Network
A loose organization of mathematicians in the junior part of their careers. The site includes the newsletter Concerns of Young Mathematicians, with back issues and an interactive newspaper version online; and links to employment, grant, organizational,
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- Your Mathematics Society - ChatArea.com
A chat area/forum for all mathematics questions. General mathematics, algebra, calculus, geometry/trigonometry, statistics, calculators, and history of mathematics are covered.
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- Youth Accounts - FORUM Credit Union
Financial literacy games, stories, activities, articles, calculators, videos, and other resources -- each set to a musical soundtrack -- for learning about finance. Children aged 2-7 learn with Flip and Flop the frogs; eight to twelve year-olds, with
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- Yuri Matiyasevich
Yuri Matiyasevich is best known for finding a negative solution to Hilbert's Tenth Problem, which has applications to the theory of algorithms, algebra, number theory, model theory, proof theory, and theoretical computer science. As well as information
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- Yves Gallot's Proth.exe and Cunningham Chains - Warut Roonguthai
A collection of interesting Cunningham chains of large prime numbers (with a link to an explanation of Cunningham chains), and how to find some of them using Yves Gallot's Proth.exe, a Windows 95/NT program.
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- Zahlen - Peter Hartmann
A list of many different types of numbers, with references. In German.
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- ZCA Kaiserslautern - Olaf Bachmann
The Zentrum für Computeralgebra (Centre for Computer Algebra) at the University of Kaiserslautern is a scientific institution of the departments of Mathematics, Computer Science, and Electrical Engineering at the University of Kaiserslautern in Germany.
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- ZDNet University - Ziff-Davis
Ziff-Davis computer magazine publishers (PCWeek, MacUser, InternetUser, FamilyPC, etc.) sponsor online fee-based computer classes and seminars taught on private moderated message boards. Most classes last 4-8 weeks, teachers have chat "office hours,"
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- Zeno's Paradoxes - Franz Kiekeben
Statements of the following paradoxes: The Racetrack (or Dichotomy); Achilles and the Tortoise; The Arrow; A brief analysis of the motion paradoxes; The Thomson Lamp; Kiekeben's Odd/Even Paradox; Benardete's Paradox of the Gods;
The Paradox of the Spaceship;
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- Zentralblatt MATH Database - Springer-Verlag
A database edited by the European Mathematical Society, the FIZ Karlsruhe, and the Heidelberg Academy of Sciences, and established in cooperation with Math Doc Cell (France). Search for abstracts of papers on any math subject by author, title, classification,
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- Zero in Four Dimensions: Cultural, Historical, Mathematical, and Psychological Perspectives - Prof. Hossein Arsham; University of Baltimore
A critical panoramic view of basic mathematical fallacies surrounding zero, such as dividing by zero, taking the limit, IEEE special floating point, the notion of zero throughout history, when zero is "not there," the origin of infinity and its symbol,
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- Zeroing In on Catalan's Conjecture - Ivars Peterson (MathTrek)
Preda Mihailescu of the Swiss Federal Institute of Technology in Zurich has
proved a theorem that is likely to lead to a solution of Catalan's conjecture, a
venerable problem involving relationships among whole numbers (in 1844, Catalan asserted that,
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- Zeta related functions and proof of Riemann's Hypothesis
Recent studies on Zeta functions and a proposed proof of Riemann's Hypothesis. Theorem of El'Melik; Proof of "Riemann's hypothesis" by above identities; Other Zeta related functions.
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- Zombie Cat - Diego Fonstad
Zombie Cat shares learning catalysts -- those "perfect stories, explanations, or methods to teach complex mathematical and scientific concepts." Insightful math learning catalysts date back to January, 2011, with categories such as "Videos worth watching"
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- Zome Geometry: Hands-on Learning with Zome Models - George W. Hart
An upcoming book full of things you can make with the Zome System geometry construction set - a hands-on guide to the geometry of three-dimensional space. Contents include: Angles, Polygons, Polyhedra; Icosahedron and Dodecahedron; Platonic Solids; Counting;
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- Zome System - Zometool, Inc.
Available in kits of various sizes, Zometool is a 31-zone design tool and educational toy for kids, hobbyists, students, teachers and researchers. Precision-molded in ABS plastic, Zometool models spatial structures representing hyperspaces of up to 31
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- Zome: Truncated 120-cell - PCMI @ Math Forum: SSTP 2007
One of the activities at the 2007 Secondary School Teachers Program in the Park City Mathematics Institute was the construction of a truncated 120-cell using Zometool. View both an explanation of the mathematics and photos of the construction.
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- Zoomin Calculus - Susan J. Northridge
Short instructional videos for students in calculus and pre-calculus. Topics include algebra, unit circle, natural logarithms, exponents, limits, derivatives, applications of differentiation, integrals, and more.
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- Z's Roguelike Stuff - Zeno Rogue
Mathematical games and projects include HyperRogue, a treasure-collecting, goblin-killing adventure set in non-Euclidean space -- specifically, a hyperbolic plane of negative curvature filled with elixirs and slime beasts; and Hydra Slayer, which begins
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- Z Systems, Inc.
Developers of data analysis, acquisition, and visualization software. Evaluation copies available for download. Graphing and data analysis software includes Graph++, a graphing application that evaluates equations and mathematical functions graphically.
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- Zuk - Jan Bobrowski
Download an experimental version of a dynamic Mandelbrot/Julia fractal viewer for DOS.
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