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  All Sites - 10634 items found, showing 1951 to 2000

  1. David's Math Pages - David E. Dirkse
    Freeware includes Graphics-Explorer (plotting equations, curve fitting, differentiate, integrate, use constants a,b,c changable at mouseclick, graphics adjust...), linEq (solve systems of lin. equations and watch Gauss-Jordan elimination step by step...), ...more>>

  2. DavidsoftNet - David Strauss
    A site that organizes and presents Texas Instruments (TI) calculator software and other resources on the Web in folders and categories, much like Yahoo. TI Calculator links are broken down into assembly coding sites, hardware sites, major sites, TI-85 ...more>>

  3. David Sumner's Home Page - David Sumner
    Study guides, exams, quizzes, problem sets, exam review materials, utilities, programs and simulations, syllabi, and other materials for courses such as calculus, sequences and series, graph theory, number theory and cryptography, and probability. The ...more>>

  4. DavidZiskind.Org - David Ziskind
    Articles discussing variational problems, ordinary differential equations, series reversion, least squares regression, quantifiers, extrema, internal rate of return, and other mathematical topics. ...more>>

  5. The Da Vinci Game - Martin Woods & Allison Carmichael
    A board game with 800 challenges, including 200 numerical Logic Key questions. These can involve solving equations, using probability or applying lateral thinking, such as in the question: "cone alone flour minus call". ...more>>

  6. Davitily Math Problem Generator - Nguyen, Ly; and Pardue, David
    Create worksheets and tests, including options for multiple choice, printable versions, and answer keys. Click to insert pre-worded questions in basic math, algebra, and geometry, the parameters of which vary randomly. Requires JavaScript. Also available ...more>>

  7. A Day at the Office (Global Citizen Project) - Georgia Perimeter College
    Your new boss assigns you to get on the Internet and find out as much as you can about data mining - who's doing it, why are they doing it, what benefits could the company receive if we did it, what software is available and the cost of the software, ...more>>

  8. Daylight Savings Time - Jim Loy
    A short explanation of Daylight Savings Time in the United States. ...more>>

  9. Day Of The Week Of Any Date - Jim Loy
    An explanation of how to figure the day of the week for any date, with some detailed shortcuts and some tables you might memorize. ...more>>

  10. DC Proof - Dan Christensen
    New software to teach the fundamentals of logic and proof. Enables user/student to write error-free proofs by selecting rules of inference, axioms, etc. from convenient drop-down menus. Includes tutorial with exercises. ...more>>

  11. DeadLine OnLine - Ionut Alex. Chitu
    Freeware that graphs equations and precisely estimates their roots. It includes the option to evaluate the function and the first two derivatives, find extrema of the function and integrate numerically. For Visual Basic-enabled computers running Windows ...more>>

  12. Deal.II: A Differential Equations Analysis Library - Wolfgang Bangerth, Ralf Hartmann, and Guido Kanschat
    This C++ program library targets the computational solution of partial differential equations (PDEs) using adaptive finite elements. Among other features, it works for one, two, and three space dimensions; handles locally refined grids, fully supporting ...more>>

  13. Deal or No Deal > Game - NBC
    A Flash version of the television game show hosted by Howie Mandel. Begin by choosing one of 26 briefcases. Each contains cash -- as little as one cent to as much as one million dollars. Then either stay with your original briefcase choice or make a "deal" ...more>>

  14. Dear Marilyn, About Leap Years (Math Chat) - Frank Morgan, MAA Online
    Your explanation [in Parade Magazine] of September 13, 1998 that we may need to skip a leap year EVERY FEW THOUSAND YEARS because the tropical year (about 365.2422 days) is a bit shorter than the average calendar year (365.2425 days) neglects CHANGES ...more>>

  15. Decibels (Math Chat) - Frank Morgan, MAA Online
    Challenge: The Christian Science Monitor of July 8, 1999, reports that "according to the NRDC, the amount of ambient noise in the ocean may have increased by 10 decibels - in other words, 10-fold - between 1950 and 1975." Is this correct? ...more>>

  16. Decimal Coins of the UK - Tony Clayton
    The change to decimal coinage: Decimalisation Day. D-Day was February 15th 1971. On that day the United Kingdom changed from the centuries old tradition of using 12 pence to the shilling and 20 shillings to the pound to a new decimal 100 new pence to ...more>>

  17. Decimal numbers (Middle School Math) - Homeworkhelp.com, Inc.
    A lesson on decimals: What is a decimal number? Converting fractions to decimals, and decimals to fractions; Adding and subtracting decimal numbers; Multiplying decimal numbers; Dividing decimal numbers; Rounding. ...more>>

  18. Decimal Places on a Number Line - NASA Lewis Learning Technologies Project
    Decimal places: On a number line, which of the following numbers would be the farthest to the right? 0.001, 0.0015, 0.00099, 0.0005. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  19. Decimals and Logarithms in the Works? And a Dyer's Hand too? - Penn Leary
    Shakespeare, Decimals and Logarithms: What did Shakespeare know about mathematics, particularly logarithms and the decimal system? And when did he know it? An article partly from Leary's book, The Second Cryptographic Shakespeare. ...more>>

  20. Decision Analysis Society (DAS) - INFORMS
    DAWeb promotes the development and use of logical methods for the improvement of decision-making in public and private enterprise. Such methods include models for decision-making under conditions of uncertainty or multiple objectives; techniques of risk ...more>>

  21. Decision Development Corporation
    Software for K-12 students and teachers, for all platforms. Math software included separately and as part of other product lines. (Gigamath Playground and Junior Gigamath Playground offer word problem practice for ages 7-14 and 4-8 respectively; Ellen ...more>>

  22. Decisioneering, Inc.
    Excel-based decision analysis software tools (Crystal Ball, CB Predictor) for risk analysis and business forecasting. ...more>>

  23. Decision Making Information - Model Education Systems Associates: MESA, Inc.
    MESA specializes in the development, implementation and use of decision support systems and related quantitative information resources, especially quantitative tools for research, evaluation and policy analysis directed toward children and their living ...more>>

  24. Decision Sciences Institute
    An interdisciplinary, international organization dedicated to the advancement of the science and practice of education and research about business decisions. Publishes the Decision Sciences Journal. ...more>>

  25. Decision Theory and Decision Trees - Mind Tools
    A method for organizing and analyzing financial decisions, and other decisions with clear numerical payoff. ...more>>

  26. Decision Tree for Optimization Software - Hans D. Mittelmann, P. Spellucci
    Information on optimization software and optimization research, including links to a dictionary, tutorials, testcases, interfaces, and software. ...more>>

  27. Deck-u-lator - Michael B. Moore
    For your collectible trading card games, especially Magic: the Gathering. Deck-u-lator calculates the percentage that a card combination will occur in the first cards dealt off the top of the deck. The calculator uses multivariate hypergeometric distribution. ...more>>

  28. Deep in the Jungles - Ivars Peterson (MathTrek)
    Humans are predisposed to seeing order and meaning in a world that too often presents random choices and chaotic evidence. Random events sometimes get linked into a meaningful, though ultimately bogus, scenario... At the same time, the mathematics of ...more>>

  29. Deepwater Horizon Incident - The National Oceanic and Atmospheric Administration (NOAA)
    NOAA has put together a site full of resources about the Deepwater Horizon oil spill in the Gulf of Mexico. In the left margin, choose "Information for: Students and Teachers" to access data sets as well as articles for the classroom, such as a Q&A that ...more>>

  30. Defending the Roman Empire - Ivars Peterson (MathTrek)
    Questions of military strategy can be handled mathematically. Charles S. ReVelle of Johns Hopkins University in Baltimore and Kenneth E. Rosing, recently retired from Erasmus University Rotterdam, describe their approach in the August-September American ...more>>

  31. Defining Geometric Formulas (Ask Dr. Math FAQ) - Math Forum
    Definitions of two- and three-dimensional figures in general, and a note on dimensions. ...more>>

  32. The Definitive Four Fours Answer Key - David A. Wheeler
    From 0 up to 40,000, whole number mathematical expressions that use only common mathematical symbols and exactly four 4s. Wheeler offers his solutions in three different formats: an abbreviated list of answers; a text file of results, mathematical expressions, ...more>>

  33. Dekov Software
    Educational software, a journal of computer-generated Euclidean geometry, and a computer-generated encyclopedia of Euclidean geometry. Current software titles include: Solving Triangles (step-by-step solutions to triangle problems in elementary geometry); ...more>>

  34. Delaware State Data Center - Delaware Economic Development Office
    A focal point for the distribution of census information in Delaware and for the dissemination of other information from the federal government, state government and other sources, coordinating the use of census and other data for economic development. ...more>>

  35. Deliberative Discourse Idealized and Realized: Accountable Talk in the Classroom and in Civic Life - Sarah Michaels, Catherine O’Connor, Lauren B. Resnick
    An article in PDF format. Abstract: Classroom discussion practices that can lead to reasoned participation by all students are presented and described by the authors. Their research emphasizes the careful orchestration of talk and tasks in academic learning. ...more>>

  36. Delphi For Fun - Gary Darby; Intellitech Systems Inc.
    Delphi is based on the Pascal programming language developed in the early 1970s by Niklaus Wirth and named after mathematician Blaise Pascal. This site explores the use of programming as a tool in math problem solving, discussing interesting problems, ...more>>

  37. Delta Blocks - Hop David
    A way to model different 3-D tessellations and a tool for studying geometry, crystallography, and polyhedra. Delta blocks were inspired by M. C. Escher's print "Flatworms," which he said demonstrates that one can build a house not only with the usual ...more>>

  38. Demiregular Tessellations - Totally Tessellated
    Color renditions and a real example of a demiregular tessellation. Templates allow you to print renditions of each tessellation suitable for coloring activities. ...more>>

  39. Demography: the Java Version - Daniel Udovic, Joshua Coxwell
    Java Demography 2.0.2 simulates growth in age structured populations. The program's click and drag features allow users to directly manipulate the fertility and mortality graphs and the population's current age distribution, represented as a bar chart ...more>>

  40. De Moivre's Theorem - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about de Moivre's theorem, including its usefulness and proofs. ...more>>

  41. The De Morgan Journal - London Mathematical Society
    The De Morgan Journal aims "to encourage academic mathematicians to reflect on current issues in mathematics education at all levels, from primary school to graduate studies; to encourage them to explore links between higher mathematics and elementary ...more>>

  42. Demos with Positive Impact - David R. Hill and Lila F. Roberts
    Demos with Positive Impact organizes effective math teaching tools. Submit your own demo, or browse the existing collection of physical demos, calculator demos, databased demos, browser-based demos, and software demos, each with statements of objectives, ...more>>

  43. Demos with Positive Impact - David R. Hill and Lila F. Roberts
    A collection of classroom demonstrations that use some form of instructional technology. The authors invite others to submit demos and provide them with feedback on the demos already collected. Demos are organized under the levels of Pre Calculus, Calculus ...more>>

  44. Dennis Stanton
    Dennis Stanton is a professor at the University of Minnesota studying combinatorics and hypergeometric functions. Many of his papers are available online in PostScript and PDF formats. There are also exams and solutions from previous classes, and a complete ...more>>

  45. Density Functional Theory in Hydrodynamics
    Density functional theory in hydrodynamics of a multicomponent multiphase mixture. Density functional theory describes the multicomponent multiphase mixture continuously without density jumps and interfacial surfaces. Bulletin /Field of Application/ ...more>>

  46. Departamento de Didáctica de la Matemática - Universidad de Granada
    The University of Granada's Department of Mathematics Instruction features research groups, each with bibliographies of downloadable publications and other resources, on numerical thinking (pensamiento numérico), statistics education (educación ...more>>

  47. The Department of Applied Science Wavelet Group - Lawrence Livermore National Laboratory
    The Wavelet Group is interested in studying the use of the wavelet transform in the solution of various types of problems. The primary area of current study is Signal Processing Using the Wavelet Transform Electrocardiogram (ECG). People, recent papers, ...more>>

  48. Department of Logic - Faculty of Philosophy, Moscow State University, Russia
    In English and Russian. History of the department, staff, books, papers, courses, news. ...more>>

  49. Department of Mathematical Sciences - U.S. Military Academy, West Point
    Publications include Cryptologia, CASE (Computer Algebra Systems in Education), Mathematica Militaris, and PRIMUS (Problems, Resource, and Issues in Undergraduate Mathematics Studies). MathTECH is a research project that provides Java applets and TI-89 ...more>>

  50. Department of Mathematics and Computer Science - North Carolina School of Science and Mathematics (NCSSM)
    Learning materials for teachers and students include resources on algebra, advanced functions, and mathematical modeling; data sets used with the NCSSM textbook Contemporary Precalculus Through Applications; the AP Calculus Web Center; and Mathematics ...more>>


 
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