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  All Sites - 6878 items found, showing 1351 to 1400

  1. Discrete Math Terms - Jennifer D. Jones, University of Oregon
    A glossary of discrete math terms, from "and" and "absorption law" through "characteristic equation," "negation," and "recurrence relation," to "universal bound law" and "vacuously true." Available for navigation without frames. ...more>>

  2. Discussing Undergraduate Mathematics Education on the Internet - Steve Weimar for MAA Online; The Math Forum
    Descriptions of good math discussion groups: what kinds of conversations you will find, how to access them, etc. Teaching and learning mathematics: MATHEDU, AMTE, MATHEDCC, DEVELOPMENTAL MATH. Topic-specific lists: MATH-HISTORY-LIST, AP-CALC, AP-STAT, ...more>>

  3. Discussion Groups: Technology - Texas Instruments
    Read, search, and post to groups about TI products: Scientific Calculators, TI-10, TI-73, TI-80/81, TI-82/83/83 Plus/Silver Edition, TI-85/86, TI-89/Voyage 200/TI-92 Plus, CAS and Symbolic Math Guide, Graphing Calculator Comparisons, Derive, muLISP, TI ...more>>

  4. Discussion of Block Scheduling - Kidsphere K-12 Mailing List
    Dan Johnson, a teacher, describes block scheduling in his school: over 90% of faculty and students favored the new schedule. Discussion of some advantages and disadvantages. ...more>>

  5. Discussions - Math Forum
    The Math Forum's discussions include mathematics and math education-related newsgroups, mailing lists, and Web-based discussions. Read recent and older messages, find out how to subscribe to a mailing list that interests you, read an MAA Online article ...more>>

  6. Disfruta Las Matemáticas - Rod Pierce, mathsisfun.com
    Spanish language version of Maths is Fun. ...more>>

  7. DISME: The Art of Tenths - Simon Stevin
    Definitions appertaining to Arithmeticall whole Numbers. Decimall arithmetike, Teaching how to performe all Computations whatsoeuer, by whole Numbers without Fractions, by the foure Principles of Common Arithmeticke: namely, Addition, Substraction, Multiplication, ...more>>

  8. Disorder in the Deck - Ivars Peterson (MathTrek)
    About 30 years ago, tournament bridge players started using computer-shuffled rather than hand-shuffled decks. Almost immediately, there was an outcry protesting the apparently wild fluctuations in the distribution of cards of different suits in computer-dealt ...more>>

  9. Dissections: Plane & Fancy - Greg Frederickson, Cambridge University Press
    A book that explores an area of mathematical recreations, called geometric dissections, or the cutting of one or more figures into pieces that can be rearranged to form other figures. With an emphasis on using as few pieces as possible, these geometrical ...more>>

  10. Dissection (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine
    An extensive annotated list of links to material on problems of cutting a region (such as a polygon into the plane) into pieces (possibly putting them together to form a different polygon). Related topics include tiling (in which the whole plane is cut ...more>>

  11. Distance Calculator Between Cities - Dan Gallagher
    Enter two cities or countries and this CGI illustrates them on a scaled political map, calculates the distance between the two locations in miles and kilometers, and provides information about latitude, longitude, bearing, and airports. All latitude and ...more>>

  12. 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 ...more>>

  13. Distance Learning - Pure Science and Mathematics - Distance Learning Course Finder
    A directory for those interested in finding out about online learning programs, courses, and seminars offered by a broad spectrum of educational providers. From the home page in addition to searching by subject you may also search by keyword or course ...more>>

  14. Distance, Rate, and Time - Math Forum, Ask Dr. Math FAQ
    Distance = Rate x Time: A discussion and two problems. ...more>>

  15. Distance Recipe (Geometry and the Imagination) - Conway, Doyle, Gilman, Thurston; The Geometry Center
    A technical definition of how to compute distance. Examples of distances; The Unit Disc Model; Passing from one model to another... ...more>>

  16. Distances on the surface of a cubical box - Henry Bottomley
    An applet that demonstrates distances across the surface of a rectangular box. The first three boxes are the dimensions of the cuboid. To change them, type new numbers in and then press the "You choose" button. The text box offers six almost self-explanatory ...more>>

  17. Distribution Curves (MSTE) - University of Illinois at Urbana-Champaign
    A statistics lesson on the properties and calculations associated with a distribution curve, the shape of a data set when displayed on a histogram. Although this lesson focuses on Normal distribution curves, it is important to be familiar with the shapes ...more>>

  18. The Distribution of the Knight - the Theoretical Research Institute
    For every given starting point in the knight's tour problem, evaluate every possible path that visits each square exactly once, and then count how many solutions exist. Illustrations and calculations of the distribution of solutions and dead ends across ...more>>

  19. Divide and conquer for quantum computers - Ivars Peterson - Science News Online
    In theory, quantum computations can be speeded up significantly by letting many quantum computers work together in parallel on data encoded as particles in an entangled quantum state. ...more>>

  20. Divide! - Andrew Starr
    A web page used to demonstrate that if you divide any two integers, eventually the decimals will repeat. ...more>>

  21. Dividing 12-foot Boards - NASA Lewis Learning Technologies Project
    Lewis needs 1,500 boards to build a small rocket. Each board must be 3 feet long. If boards are sold in 12 foot lengths, how many boards must Lewis buy and cut into 3 foot pieces to get the 1,500 he needs? A detailed answer is provided. From NASA's 9th ...more>>

  22. Dividing by 0 - Math Forum, Ask Dr. Math FAQ
    Why can't you divide by 0? Why is 0/0 "indeterminate" and 1/0 "undefined"? Why is dividing by zero "illegal"? ...more>>

  23. Dividing Decimals - NASA Lewis Learning Technologies Project
    Dividing decimals: What is 12.8 divided by .04? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  24. Dividing: Fractions and Mixed Numbers - NASA Lewis Learning Technologies Project
    What is 1 1/2 divided by 1/2? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  25. Dividing The Plane - Jim Loy
    A line divides the plane into two pieces (regions). Draw another line. The plane is now divided into three or four regions. It is three regions if the lines are parallel, four if they intersect. A third line divides the plane into seven regions. Find ...more>>

  26. Divisibility Rules - Calculation Tips & Tricks, The Math Forum
    Tips for figuring out whether a number can be divided by the numbers 3-13, with a Spanish translation and an explanation of why the rules work by Robert L. Ward. ...more>>

  27. Divisibility Rules - Math Forum, Ask Dr. Math FAQ
    How can you tell whether a number is divisible by another number (leaving no remainder) without actually doing the division? Why do 'divisibility rules' work? ...more>>

  28. Divisibility Rules to 50 and Beyond - Stephen D.T. Froggatt; Math Forum, Ask Dr. Math FAQ
    A quick way of testing primality of larger numbers: the idea of deleting the last digit and adding or subtracting a multiple of the digit from the remaining number can be generalized to test for divisibility by prime numbers up to 50 and beyond. ...more>>

  29. Division by Zero - Dave Richeson
    A blog about "math, puzzles, teaching, and academic technology." Posts, which date back to September of 2008 and sometimes introduce original applets, have included "Volumes of n-dimensional balls," "Albrecht Dürer's ruler and compass constructions," ...more>>

  30. Division with Roman Numerals - Jim Loy
    Roman numeral division can be very easy or fairly difficult, depending on the two numbers. An example of division by pieces, and a general method using repeated subtraction. ...more>>

  31. Divisor Plot - Jeffrey Ventrella
    "We hear of primes described as the 'building blocks' of all numbers. Let's turn that concept on [its] head. Instead, let's think of primes as the negative spaces behind complex objects. Imagine a series of picket fences stacked in front of each other. ...more>>

  32. 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 CD-ROM contains a virtual "Do-it-Yourself ...more>>

  33. DLK MathsWork Software
    Self-differentiating, topic-specific math software for Windows 3.1 and above, on number, shape and space, and data handling. All of the practice modules have on screen monitoring at three levels. Six problem modules designed to improve users' application ...more>>

  34. DNA Adds Up - Ivars Peterson (MathLand)
    Calculating that 0 + 0 = 0, 1 + 0 = 1, and 0 + 1 = 1 is normally no big deal. When the calculations are done in the lab using DNA molecules, however, these elementary manipulations look considerably more interesting. In the July 12 [1996] Science, a team ...more>>

  35. DNA, Computers, and Killer Apps - Ivars Peterson (MathLand)
    When computer scientists look at DNA, they see information storage and processing. They view the four bases of DNA as something akin to the zeros and ones of the binary code by which computers store and process information. They look for algorithms, theorems, ...more>>

  36. Dodecahedron Measures - Paul Kunkel
    An investigation of the formulas of the surface area and volume for the dodecahedron. With icosahedron extensions. ...more>>

  37. Does March Madness need a time-out? - J. Travis - Science News Online
    Suggestions about the effects of circadian rhythms, daily cycles of physiological activity that every organism experiences, and changes in time zone (causing 'jet lag'), on sports teams. ...more>>

  38. Does the Number e have Special Meaning? - Spencer, Chan; Univ. of Toronto Mathematics Network
    Answers, explanations, and expositions of the question, Does the number e have any real physical meaning, or is it just a mathematical convenience? Addresses the topics: Simple and Compound Interest; A Physical Meaning for the Number e; The General Situation; ...more>>

  39. Doing Mathematics - Bryan Meyer
    Blog by an eleventh grade math teacher at a project-based learning (PBL) school pursuing a Masters Degree in Teacher Leadership. Posts, which date back to February, 2012, have included "What Bowflex Can Teach Us about Assessment," "Habits of a Mathematician," ...more>>

  40. Domain and Range of a Function - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about the domain and range of a function, as well as determining the domain and range of a function from its graph. ...more>>

  41. Domebook - Tom Camilli
    Cardboard and transparent plastic geodesic domes built by children. Students start by constructing paper models, then apply scale factors to construct domes of any size using cardboard or wooden dowels and plastic sheeting. See pictures of classroom projects; ...more>>

  42. Dominoes Activity - Suzanne Alejandre
    A classroom activity (similar to Pentomino + 1 = Hexomino; a variation on polyominoes) aligned to the NCTM and California Standards, to be explored through manipulatives (paper dominoes). Students explore whether it is possible to cover a 6x5 grid with ...more>>

  43. Donald Coxeter, Mathematician and Geometer - Great Canadian Scientists (GCS)
    Harold Scott MacDonald Coxeter, Professor Emeritus, Math Dept., Univ. of Toronto, is best known for his work in hyperdimensional geometries and regular polytopes - geometric shapes that extend into the 4th dimension and beyond. In 1926 he discovered a ...more>>

  44. donalduncan's Channel
    Narrated paper and pencil instructional videos -- some, specific to British Columbia's Foundations of Math and Precalculus exams -- on number, line segments and lines, rational expressions, factoring, quadratic functions, functions, exponents, polynomials, ...more>>

  45. Don Knuth's Home Page - Donald E. Knuth, Stanford University
    From the author of The Art of Computer Programming. "Computer Musings" chronologically documents Knuth's informal lectures at Stanford. It also links to Musings Online, digitized versions of videos from the lecture series that included Dancing Links; ...more>>

  46. Don't Hate No Math - Elio Motella
    Advice for students, parents, and teachers. The document called "Lecture" includes sections such as "The causes of your troubles," "It's called metacognition," and "Mental models and propositional representations"; see in particular Part D, titled "An ...more>>

  47. Doodal - Neil Thapen
    Draw fractals freehand using a computer mouse: select a "brush size" to specify width in pixels, then click and drag in the large orange frame, the contents of which get copied in however many blue frames you specify. To rotate a blue box, click it while ...more>>

  48. Doodling and Miracles - Cut the Knot!, Alexander Bogomolny
    Almost 100 years ago, Frank Morley proved a curious theorem from elementary geometry that had remained unknown until 1899. With time, the theorem became known in mathematical folklore as Morley's Miracle (Morley's Trisector Theorem is a more mundane term.) ...more>>

  49. The DOR: Home of the Direct Opposite Reverse - David P. Sterner
    Sterner developed this shape, which he calls a geometric "missing link", and has applications as a lens. ...more>>

  50. Doron Zeilberger's Electronic Headquarters
    Doron Zeilberger researches combinatorics using computer programs. The site is notable for his Opinions page; these opinions are wide-ranging but touch upon mathematics education, the use of computers, and the value of incomplete proofs. All of Zeilberger's ...more>>


 
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