- Descriptive Geometry - Petr Plavjaník
Software for creating and printing drawings, including conic sections, color fillings in Monge's projection, and axonometry. In English and Czech.
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- Diffpack - Numerical Objects Online
Diffpack is a collection of C++ modules containing a wide selection of interchangeable and application-independent components, useful as a set of linkable libraries integrated with existing applications or as a development framework including a fully
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- Directory of Computational Geometry Software - Nina Amenta; The Geometry Center
A list of computational geometry programs and packages, and other related algorithmic Web sites.
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- Discreta - Betten, Haberberger, Laue, Wassermann
A program to construct t-designs with a prescribed automorphism group. Includes an explanation of the construction of t-designs, a tutorial, a database of design parameter sets, publications, and source code to download.
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- Discrete Mathematics Graphic Calculator Series - O. T. Lee
A set of booklets written for the Year 12 Discrete Mathematics Programme of Western Australia, integrating the problem-solving process with specific graphic calculator models (Casio CFX 9850G/G+/GB+ and the Hewlett Packard 38G), and including programs
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- Distance Calculus @ Suffolk University - Suffolk University and MathMonkeys, LLC
Calculus on the Web. Contents include: PreCalculus (functions, algebra, trigonometry); Calculus Topics (differential and integral calculus, sequences and series, multivariable calculus, differential equations); Assistance (student, instructor); Curriculum
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- D. J. Bernstein
Courses, research articles (in dvi format), and a list of available software, listed by a professor of mathematics and computer science at the University of Illinois. Pages are also listed by topic. Also at ftp://koobera.math.uic.edu/www/djb.html.
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- Dmitry Gokhman
Papers (Hardy fields; Differential fields of complex germs; Applied mathematics), Class lecture notes and summaries, code (IGF, LibPS 2, Python, Perl, TeXtool 2.12a), courses, translations, guests.
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- DOSE - G. B. Rubalsky
Determine Optimal Stocks Efficiently (DOSE) stands for the two software products DOSE-TRADE and DOSE-SERVICE, solving optimal inventory control problems for
trading enterprises and tech service enterprises. Both products work under Windows 95 and later,
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- DotNumerics - José Antonio De Santiago-Castillo
DotNumerics is a Numerical Library for .NET written in C#. It provides routines for: Linear Algebra (CSLapack, CSBlas, CSEispack), Differential Equations, and Optimization.
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- DPlot Plotting Software for Scientists and Engineers - David Hyde
A general purpose XY plotting program that features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special-purpose plots: tripartite grids (shock spectra), grain size distribution plots, and polar plots.
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- Drawing Tools - Shai Duvdevani
A growing group of .NET C# programs intended to make life easier for highschool and university students studying subjects such as math, computers and electronics. Each of these programs features saving and loading, so that sharing a drawing of logical
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- Drayton Analytics
A provider of optimisation-related software to the Australian operations research community, and economic consulting services to the utility industries.
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- DreamCalc for Windows - Andy Thomas
A freeware scientific calculator for Windows, intended to replace standard hand-held calculators. Fully featured range of math, scientific, statistical & financial functions. Supports natural fractions, complex numbers, base-n logic, unit conversions
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- Dr. Genius - Hilaire Fernandes
Dr. Genius: "Geometry Exploration and Numeric Intuitive User System." The successor of the Dr. Geo Project, this GNU interactive geometry software allows the construction and manipulation of geometric figures. Read documentation, subscribe to the mailing
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- Dynagraph - Rouben Rostamian, University of Maryland, Baltimore County
Dynagraph is a 3D plotting utility for the X Window System. It draws 3D curves and surfaces representing mathematical expressions and numerical data, and allows for interactive rotation, zooming, and other manipulations of the displayed images. Read the
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- dynamical-systems.org
An interactive laboratory on dynamical systems, in particular on particle systems. Software, Documents, and Links. Animated features include: Nonlinear chain; Forced Pendulum; Fermi system; Vlasov billiards; Vortex motion; 3 Body Problem; Convex Billiards;
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- Dynamische Geometrie Systeme (DGS) - Dr. Dörte Haftendorn
In German. Characteristics and comparisons of dynamic geometry systems; Euklid: characteristics, material, notes, software, lessons; TI-92 calculator Cabri Geomètre materials. You may send for a 40-page booklet on "Dynamic Geometry of Systems"
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- EasyFit: Distribution-Fitting Software - Mathwave Technologies
Automatically or manually fit probability distributions to data and select the best model in seconds. Key features include support for over 40 probability distributions, goodness of fit tests, and high-quality interactive graphs. For Windows. Free trial
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- Educational Math Software - Educational Software Directory
An annotated directory of math learning software.
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- Educational Resources - Avraham Goldstein
CGI for solving quadratic and cubic equations, performing polynomial division with remainder, finding real and complex roots of cubic equations, and analyzing polynomial functions (determining first and second derivatives, local maxima, minima, inflection
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- EDU-SIG: Python in Education - Python Software Foundation
An informal venue for comparing notes and discussing future possibilities for the Python programming language in education. The special interest group's origins trace to Guido van Rossum's pioneering Computer Programming for Everybody (CP4E), a grant
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- efg's Computer Lab: Fractals & Chaos Page - Earl F. Glynn II
Links to programs for creating fractal images and examples of chaos, and to the Glynn Function Study Center Gallery, with various views of the Julia set, z -> z^1.5-0.2, where z is a complex number.
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- Efofex Software
Produce publication quality graphics for mathematics and science. Tools for math teachers include FX Draw, for drawing; FX Equation, for equations; and FX MathSpell, a mathematics dictionary add-in for Microsoft Word. Tools for math students include FX
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- EMS: Easy Math Solution
Algorithm- and component-based commercial software. EquTranslator is a fast equation evaluator with parse-tree builder and user-friendly interface for parsing and calculating a run-time defined math expression: F(x1, x2,..., xn)= f(x1, x2,..., xn). CxTranslator
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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 drag-and-drop and
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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 MS-DOS file ent.exe, C++ source code, and a Makefile to run ent in Unix. Links to a Java chi-square 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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- Equation Solver - Alexey V.Voronin
Midlet "Equation Solver" is a mobile phone app intended to solve systems of linear algebraic equations with real coefficients of the second and third order (with two and three unknowns). System Requirements:
Mobile phone should have a color screen and
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- EquationSolver - Patrick McMordie
Online equation solver. In “real mode”, ES will solve a huge variety of equations in x (single real variable) - for example those involving polynomial functions of unlimited degree, logarithmic, trigonometric, ... . It’ll solve systems of linear simultaneous
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- Equation Wizard: Algebraic Equation Solver - Bogdan Kobets
The program allows you to solve algebraic equations in the automatic mode. You just enter an equation in any form without any preparatory operations. Step by step Equation Wizard reduces it to a canonical form performing all necessary operations. After
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- The Erdos-Strauss Conjecture (ESC) - Allan Swett
The conjecture states that that for any integer n > 1 there are integers a, b, and c with 4/n = 1/a + 1/b + 1/c, a > 0, b > 0, c > 0. The page establishes that the conjecture is true for all integers n, 1 < n <= 10^14. With links to
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- Escher Web Sketch - Wes Hardaker, Gervais Chapuis; Univ. of Lausanne, Switzerland
A Java applet that allows you to draw repeating patterns. With documentation on how to use the applet, a pattern archive, the authors' favorite patterns, a link to download Escher Web Sketch, the program's source code, and interesting crystallographic
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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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- Euclide - Patrick Iglesias; Ecole Normale Supérieure de Lyon
Euclide est un logiciel d'apprentissage de géométrie plane pour
Macintosh destiné au collégiens et lycéens, pour aider à comprendre quelques théorèmes de géométrie plane, à
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- EucliDraw - Kostas Pamfilos, George Nikoloudakis, and Paris Pamfilos
A program to draw plane Euclidean geometry figures. Features include an extensible toolbox, animations, Euclidean and arbitrary transformations, a catalogue of triangle-center-tools, Scheme-Sockets to combine and generate complicated schemes and fractals,
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- Euklides - Peter Simon
Dynamic geometry shareware for two-dimensional geometry; besides the basic elements, Euklides supports conics and point tracking (locus, cycloid). The multi-layer capability ensures easy and efficient construction of drawings. The software produces precise
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- EUKLID - Roland Mechling
Dynamic geometry shareware in German and English. Create geometrical constructions on the screen just as on paper; then take a point in your drawing and drag it to another place, and the geometrical relations between all of the objects will be preserved.
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- ExperSim: Experimental Simulations - McClelland, Polson; University of Colorado
Generate simulated experimental data for four studies - Imprinting in Precocial Birds (Rajecki), The Etiology of Schizophrenia (Main), Motivational Factors in Routine Performance (Mueller), and Social Facilitation (Rajecki & Halstead-Nussloch). For
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- Expert Choice
Analytic Hierarchy Process (AHP) and other decision support software for strategic planning and operations research.
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- Exploring the Euler Gamma and Riemann Zeta Functions - Sjoerd J.Schaper
A graphic Euler gamma and Riemann zeta explorer, built around the binomial version of Peter Borwein's "An Efficient Algorithm for the Riemann Zeta Function" (1995). The program plots function values on the real line, draws Argand diagrams of the mapping
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- Extreme Optimization: Numerical Linear Algebra Library for C# and VB.NET - Jeffrey Sax, Extreme Optimization
Object-oriented classes for linear algebra and a broad range of numerical techniques for the Microsoft .NET framework. Topics covered: solving equations, mathematical curves, approximation, numerical integration and differentiation, complex numbers.
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- Extreme Optimization Statistics Library for .NET - Jeffrey Sax, ExoAnalytics Inc.
The Extreme Optimization Statistics Library for .NET includes classes for over 20 probability distributions, random number generation, hypothesis tests, and a range of statistical models, including multiple linear regression and analysis of variance (ANOVA).
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- FAME (Fractal Art Museum Enterprise) - Joseph Trotsky, Director
A display of fractals by hundreds of artists. The site hosts permanent expositions, along with thematic and periodic exhibitions, annual contests, papers on fractal theory, software and tutorials for making fractals, and more.
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- Fantastic Fractals - Sheu, Turvey
A comprehensive fractals site with tutorials for all ages, fractal-generated music, and realistic landscapes. Download Fantastic Fractals 98 software; interact with others through the fractal workshop message boards, and discussion forum.
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- Fantastic Fractals - ThinkQuest 1997
All about fractals: including: fully interactive fractal tutorials, a gallery, landscapes, music, a reference desk and types of fractals, downloads, a fractal workshop (build your own fractals), a fractal challenge (test yourself - how much have you learned
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- Fast Industrial-Strength Triangulation (FIST) - Martin Held; Institute of Computer Science, University of Salzburg
FIST is code for fast industrial-strength triangulation based on repeatedly clipping the ears of a polygon. The algorithm was implemented in ANSI C, based on floating-point arithmetic. Geometric hashing is used in order to speed up the
ear-clipping process
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- Fathom and Tinkerplots - Math Forum
A discussion group to foster communication within the Fathom and Tinkerplots user community. Topics appropriate for discussion include how to use Fathom and Tinkerplots effectively in teaching mathematics, statistics, and data analysis; problems (both
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- FElt (Finite ELemenT)
A free system for finite element analysis; this site provides an overview of some of its features. Contents: general overview of the FElt system components; example problems that demonstrate what kinds of problems FElt can solve, how FElt can help you
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- A Few Aspects of Cryptology - David Hamer
Read about cipher machines such as Enigma, Geheimschreiber, NEMA, SIGABA and others; visit the gallery showrooms of the Crypto Simulation Group (CSG), a group of historians and researchers in the field of cryptology; download sample simulators and published
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