 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 problemsolving process with specific graphic calculator models (Casio CFX 9850G/G+/GB+ and the Hewlett Packard 38G), and including programs
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 Discriminant Exponent Calculator  John Jones
A Java applet for computing the maximum exponent of a prime in the discriminant of a number field of given degree. Enter values for the degree and the prime, and hit the Compute button.
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 Discussion Groups: Technology  Texas Instruments
Read, search, and post to groups about TI products: Scientific Calculators, TI10, TI73, TI80/81, TI82/83/83 Plus/Silver Edition, TI85/86, TI89/Voyage 200/TI92 Plus, CAS and Symbolic Math Guide, Graphing Calculator Comparisons, Derive, muLISP, TI
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 DIY Calculator  Clive (Max) Maxfield and Alvin Brown
Order the book How Computers Do Math, or preview its table of contents. The book's interactive laboratories guide you in the creation of a simple calculator program to run on your DIY Calculator; its accompanying CDROM contains a virtual "DoitYourself
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 Downloads  Mac  Mathematics  CNET Download.com
Search this site to find a particular piece of software for the Mac, or browse their mathematics listings.
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 Downloads  PC  Mathematics  CNET Download.com
Search this site to find a particular piece of software for the PC, or browse their mathematics listings.
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 DreamCalc for Windows  Andy Thomas
A freeware scientific calculator for Windows, intended to replace standard handheld calculators. Fully featured range of math, scientific, statistical & financial functions. Supports natural fractions, complex numbers, basen logic, unit conversions
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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; TI92 calculator Cabri Geomètre materials. You may send for a 40page booklet on "Dynamic Geometry of Systems"
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 Dyscalculator  Pind, Pernille; and Bjerre, Erik
A calculator app to help dyscalculics by showing quantities in multiple representations: as digits, as words, and (for comparisons) graphically. Dyscalculator also speaks figures aloud and rounds numbers. Developed for iPhone, iPad, and Android with the
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 Early Calculators  David G. Hicks
Some history on slide rules and their types and makers, as well as basic instructions on their use. Also Planimeters, Calculating Machines (adding machines, four function mechanical calculators, how calculating machiens worked), and Early Electronic Models.
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 Easing the Hurry Syndrome  Jennifer Wilson
Blog by a teacher in Flowood (Mississippi) whose course load includes Advanced Placement Calculus and Geometry. Posts often begin with alignments to relevant Common Core State Standard (CCSS) and feature screenshots of TINspire CAS Navigators, with original
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 Easy Calci  Manoj Prabhakar
Calculators for linear algebra, statistics, length conversions and other measurements, interest and other financial topics, and more.
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 EasyCalculation.com
Free online mathematics converter, calculators, and other tools for numbers, unit conversions, hexa conversions, decimal conversions, binary conversions, area, trigonometry, analytical geometry, algebra (e.g., group work, Bernoulli inequality, Venn diagrams
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 EDGE: EmbeDded Graphing Engine  Hydrix
A graphing engine that can quickly and accurately graph a broad range of algebraic relations. Additionally it can identify and display regions where the relation is undefined. Demo version on the web.
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 Egyptian Mathematics  Mark Millmore
A clearlywritten description of the Egyptian numerical system, with some practice problems from John Heaton and Pam B. Newberry to test your understanding. Java calculator adds, subtracts, multiplies, and divides in Egyptian numerals.
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 Egyptian Number Translation  Poseidon Software and Invention
A calculator that takes a decimal number and translates it into Egyptian hieroglyphs.
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 Electrical Engineering Toolbox  Cody Miller, Aspen Labs, LLC
Calculate trace width, trace current, trace resistance, impedance, crosstalk (microstrip or stripline), and inductance (wire, parallel wires, coax, wire over plane, loop, rectangle loop, coil, broadside traces, and edgecoupled traces). Download "math
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 El Rincón de la Calculadora Gráfica  Francisco Puerta García; Sociedad Canaria 'Isaac Newton' de Profesores de Matemáticas
Artículos de una sección de la revista NUMEROS, que sirve de foro para que los profesores de matemáticas que utilizan calculadoras gráficas en sus clases puedan intercambiar ideas, consultar dudas y mantener debates sobre los
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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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 Engineers Edge
Formulas, design guide, and online calculators. Design and engineering topics include Reynold's number, pipe friction, mechanical tolerances, beam bending, springs, thread stress area, strain gauge application, plastic snap fit application, pressure vessel
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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 MSDOS file ent.exe, C++ source code, and a Makefile to run ent in Unix. Links to a Java chisquare calculator.
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 Escape Velocity Calculator  Brian Martin
This minimal javascript tool calculates the escape velocity of a body given the body's mass and radius (sample data are provided for the Earth, the Moon, Jupiter, and the Sun).
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 Estadistika  SINCOW
Software for statistical analysis written in PHP: includes measures of central tendency, frequency distributions, median, mode, average, graphic results, surveys online. Free trial version. Free online calculator also available.
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 The Euclidean Algorithm  David Sumner
Find the greatest common divisor (GCD) online using the Euclidean Algorithm. Enter two numbers, and the JavaScript calculates GCD, least common multiple (LCM), and linear combination; and displays the steps of the algorithm.
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 Expression Calculator  D. Block, Vestris, Inc.
A calculator for Windows 95/98/NT that does 2D plots and financial functions, constants, operators, logical functions, dozens of common functions, primes and hyperbolic functions, students and Gauss integrals, Fresnel, elliptic integrals, trigonometric
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 Factorization using the Elliptic Curve Method  Dario Alejandro Alpern
A Java applet that factors numbers up to 1000 digits long, outputting their number of divisors, sum of divisors, Euler's totient, Moebius number, and sum of squares. Also accepts numerical expressions.
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 The Fair Division Calculator  Francis Su
An interactive Java applet designed to help you determine how to divide among n people: a desirable object (such as a cake); an undesirable object (such as a set of chores); or a set of indivisible objects (rooms, desirable) with payments (rent, undesirable).
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 Famdays
A famday is a day on which the combined ages of family members add up to a whole number of years  in a sense, a family birthday, a reason for a celebration that contributes to strengthening family ties. Students can compute famdays for their families
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 Financial Literacy Math Quizzes  HowToSaveMoney.me
Quizzes for practicing addition and subtraction of dollar and coin amounts, presented with pictures of US currency or as numerical expressions. "Grade My Quiz" or generate new problems with the click of a button. The site also offers finance calculators,
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 Fisher's Exact Test  Øyvind Langsrud
A calculator for testing statistically whether there is any relation between two categorical variables (with two levels). With examples.
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 Fixedpoint arithmetic: multiplication  Paul Molitor; Universitat Hälle
A collection of Java applets, each showing a different method of fixedpoint multiplication: Binary representation, the Schoolmethod, Booth's algorithm, and Parallel multiplication, written for a course in Computer Science ('Computer Arithmetic'). After
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 Fractal Dimension Calculator (FDC) User Manual  Paul Bourke
FDC takes a black and white image in the form of a Macintosh PICT file or clipboard contents and uses the boxcounting algorithm to estimate the fractal dimension of the object represented in the image. The "object" is assumed to be the black part of
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 Fraction Calculator  Luke Palder
A free online fraction calculator that includes written stepbystep guides to adding, subtracting, multiplying and dividing fractions.
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 Free Math Flashcards, Math Resources, and Math Games  Linda Blumenthal, Thinkwell Corp., NY
Free math resources and educational games, including talking math flashcards. Learn math using a multisensory approach.
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 Free Math Help  Ted Wilcox
Free tutorials, glossary, study tips, calculator advice, and more, including annotated links to other resources.
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 From Number to Formula  Ivars Peterson (MathLand)
Given the number 1.6180339887, how can you find out whether this particular number is special in some way, as the output of a specific formula or the value of a familiar mathematical function? Do you have a favorite number: Pi, the golden ratio, e (Napier's
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 fxsolver  Equanalysis UG
Free equation solver with a formula database for quick calculations on tables and data input "without messing around with programming languages or spreadsheet software." Browse the hundreds of math formulas, then click the gray "Add to Solver" button
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 g3d 3Dimensional Graphing Applet  Eugene Agichtein
Currently available functions: sin, cos, tan, acos, asin, atan arguments in radians; Hyperbolic Functions  sinc, ctan, actan; sqrt, sqr, exp, log, ln. Operators: +, , /, *, ^ . Graphs are highlighted in red to show contours, and can be rotated by dragging
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 Gaussian Integer Calculator  Dario Alejandro Alpern
Applet that evaluates numerical expressions using Gaussian integers, factors Gaussian integers, and evaluates functions, including the greatest common divisor (GCD), modular inversion, and modular exponentiation, among others.
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 GCalc: Online Graphing Calculator  Jiho Kim
A free online graphing calculator available through the Web.
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 Generic Two integer variable equation solver  Dario Alpern
Java/JavaScript code that solves Diophantine equations of the form Ax^2 + Bxy + Cy^2 + Dx + Ey + F = 0 in two selectable modes: solution only and stepbystep (or teach) mode. With a link to his description of the solving methods.
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 GeoCalc  BaldGeeks
Macintosh shareware for calculating the area, perimeter, sides, angles, and other measures of two and threedimensional shapes such as ellipses, rectangles, triangles, trapeziums, parallelograms, polygons, prisms, cylinders, cones, pyramids, and spheres.
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 Geometria  Valerio Capello
A program for computing lines, surfaces and volumes of the main plane and solid figures, through direct and indirect formulas. Select the figure you are working on, choose the kind of calculation from the list provided, and then click the Compute button
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 The Golden Ratio  Blacker, Polanski, Schwach; The Geometry Center
Introduction to the Golden Ratio and Fibonacci Sequence. Instead of simply supplying definitions and asking the student to engage in mindless practice, students work through several activities to discover the applications of the Golden Ratio and Fibonacci
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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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 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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 GraphCalc  Mike Arrison
A graphing calculator program for Windows. Features include threedimensional graphing, calculus, and statistics. Download a shareware version, read online documentation, request a feature, or read about the authors.
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 Graphic Algebra: Explorations with a Graphing Calculator  Asp, Dowsey, Stacey, Tynan; Key Curriculum Press
A book of blackline master activities for algebra students to use with graphing calculators or graphing software such as NuCalc. Based on Australian research on teaching algebra. For grades 811.
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