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  All Sites - 10633 items found, showing 10001 to 10050

  1. ULTRALAB - Anglia Polytechnic University, U.K.
    A research centre that writes software for learners of all ages and researches all aspects of the use of technology in learning. Reports, papers, and articles; 'old' software and hardware computing archive. ...more>>

  2. UMass Lowell WebMathematica Scripts - Kenneth M. Levasseur, Department of Mathematical Sciences, University of Massachusetts Lowell
    Download Mathematica scripts. Abstract Algebra: generate Cayley tables of EAAM groups, Zn, and the ring Zn; connect the dots to visualize finite cyclic groups; polynomial extensions; and a game on finding a morphism between two groups. Modeling: exponential ...more>>

  3. UMI's Online Dissertation Services - Bell & Howell Information and Learning Company
    UMI publishes and archives dissertations and theses; sells copies on demand; and maintains the definitive bibliographic record for over 1.4 million doctoral dissertations and master's theses. Information on preparing a dissertation for publication; finding ...more>>

  4. Unbreakable Ciphers - Jim Loy
    Proving that if the method of encryption is complicated enough, almost any encrypted message can be unbreakable. ...more>>

  5. Uncertain Reasoning Group - Mathematical Logic - Dept. of Mathematics, Manchester Univ., U.K.
    Homepage for a research group that investigates uncertain knowledge, how to represent it, and how to reason with it intelligently. People, research topics, seminars, Web resources. ...more>>

  6. Uncle Bob's Puzzles - Robert & Claire Mead, Haverhill, NH, USA
    Math and logic problems (no solutions); if you have questions, want a hint, or want to submit a solution you're invited to email the author. Asterisks indicate greater difficulty: Blind Cowboy; A Game of Catch; The Next Three; Grandpa's Birthday; Square ...more>>

  7. Uncle Dan's Algebra Videos - Dan Suttin, Homespun for Homeschoolers
    A set of 12 videos plus a CD containing 180-page workbook and line-by-line solution key. Samples and ordering information available on the site. Uncle Dan offers to e-mail the 180-page algebra workbook file as a free gift to anyone who e-mails him and ...more>>

  8. Uncle Kenny's Mathematics Pronunciation Guide - Kent Kromarek
    Billed as a "megametamathematical guide for proper American English pronunciation of terms and names, for the diacritally challenged," this guide includes many mathematicians and mathematical terms encountered in high school and the first two years ...more>>

  9. Uncorking Work Problems (SMILE) - David Drymiller, Marie Sklodowska Curie Metro High School
    A lesson designed to teach students to solve problems about work using the formula work = rate x time; to solve equations containing rational expressions; and to strengthen basic skills learned in algebra. From the Practical and Applied Math section of ...more>>

  10. Uncovering Mathematics with Manipulatives and Calculators - Texas Instruments, Inc.
    A text that provides K-6 activities emphasizing problem solving, reasoning, communications, and connections, clustered into four content strands: number sense; patterns, relations, and functions; measurement and geometry; and probability and statistics. ...more>>

  11. UNdata - United Nations Statistics Division
    Search across the UN's statistical databases: education, human development, population, trade, gender, and more. Preview, download, and filter results by sources such as the State of the World's Children (SOWC) and Millennium Development Goals (MDG). ...more>>

  12. Undergraduate Research Project in Random Tilings - Propp, Wilson
    This project investigates different regions of random tilings of nxn squares with 1x2 dominoes: square, hexagon, fortress, dungeon, and Aztec diamond (the set of lattice squares completely inside a square tilted 45 degrees, discovering that the dominoes ...more>>

  13. Undergraduates' Page (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    Suggestions and links designed to give undergraduate students information specifically for them. Societies, Undergraduate Projects and Research; Summer Programs, etc.; Competitions; Careers in Mathematics; Undergraduate Publications; Other WWW Sites. ...more>>

  14. Understanding Algebra - James Brennan, Boise State University
    In addition to "stuff to play with" on the web (a Graphing Applet (for exploring slope and intercepts of straight lines), a Prime Factorization Machine, a Prime Number List, a Quadratic Equation Solver, and a Quadratic Function Plotter), this book's full ...more>>

  15. Understanding Calculus - Faraz Hussain
    An online book that introduces calculus through concepts and engineering applications. Read the illustrated chapters free online, or download the entire work as a PDF for a fee. ...more>>

  16. Understanding Fractions (SMILE) - Florida Bradley, Hartigan School
    A lesson designed to teach students to recognize and understand equal fractions in relation to a whole unit. From the Arithmetic section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement. ...more>>

  17. Understanding (Learning and Mathematics) - Greeno, Riley; Math Forum
    In their 1987 article, "Processes and Development of Understanding," James G. Greeno of Stanford University and Mary S. Riley of San Diego State University examine why younger children seem to lack the ability of older children to solve mathematical word ...more>>

  18. Understanding Mathematics: A study guide - Peter Alfeld, University of Utah
    A resource and source of encouragement, with questions and Alfeld's comments (Are you frustrated working through heaps of meaningless problems that are all alike? Does the thought "I can look it up if I have to" occur to you frequently? Do you feel that ...more>>

  19. Understanding Mathematics: From Counting to Calculus - Keith Kressin, K Squared Publishing, Inc.
    A comprehensive book for anyone who desires clear and concise math explanations, written for a non-technical audience to cover the math fundamentals normally taught from first grade through college (for more information, see the Table of Contents). ...more>>

  20. Understanding Projective Geometry (Question Corner and Discussion Area) - University of Toronto Mathematics Network
    An in-depth explanation of projective geometry in response to a high school student's question. ...more>>

  21. Understanding 'Rate' Word Problems - Rick Garlikov
    A conceptual explanation of doing various kinds of math "rate" problems (e.g., "distance/speed/time" problems, problems involving combining work done by different agents working at different rates of speed, quantity/proportion problems, etc.). ...more>>

  22. Understanding Temperatures - NASA Lewis Learning Technologies Project
    These were the low temperatures recorded for January 15 in these cities: Minneapolis: - 6 degrees; Cleveland: 5 degrees; Fargo: -11 degrees; Chicago: 2 degrees; Milwaukee: -3 degrees; Detroit: -1 degree. Which city had the low temperature closest to 0 ...more>>

  23. Undusting Napier's Bones - Alexandros Diploudis; Heriot-Watt University, UK
    Biographical information about the Scottish mathematician John Napier, generally considered the inventor of logarithms, with a Java simulation of Napier's bones, a method for performing arithmetic operations by the manipulation of rods (called "bones" ...more>>

  24. Une Balade dans le Monde des Polyèdres - Maurice Starck
    Les polyèdres convexes, non convexes, et intéressants: les polyèdres uniformes, les stellations de l'icosaèdre, des tétraèdres remarquables, le découpage d'un tétraèdre par un plan, les deltaèdres ...more>>

  25. Unfair Dice - Ivars Peterson (MathTrek)
    Dice represent an intriguing example of the interplay between randomness, chance, and physical law. The simplest mathematical model of a standard die is based on the assumption that the die is a perfect cube. A cube has six faces, and each face has an ...more>>

  26. Unfolding Orbifolds - Heidi Burgiel; The Geometry Center
    A study of how a pattern can be reconstructed from an orbifold, using both hands-on exploration and the computer program TesselMania!. These activities are a good introduction to the movie Shape of Space. From Math 5337, Technology in the Geometry Classroom, ...more>>

  27. Unicursal curves and knot diagrams (Geometry and the Imagination) - Conway, Doyle, Gilman, Thurston; The Geometry Center
    A unicursal curve in the plane is a curve that you get when you put down your pencil, and draw until you get back to the starting point. As you draw, your pencil mark can intersect itself, but you're not supposed to have any triple intersections. You ...more>>

  28. Unification of System of Linear Equations, Matrix Inversion, and Linear Programming - Prof. Hossein Arsham; University of Baltimore
    Remarks on unification of systems of equations, matrix inversion, and linear programming, that is, the links between these topics. Includes references and further reading. ...more>>

  29. Uniform-Motion Problems: Just Playing With Cars (SMILE) - David Drymiller, Morgan Park High School
    A lesson that uses battery-operated cars to teach students to solve uniform motion word problems using rate X time = distance; and gives them practice in measuring in the metric and English systems. From the Practical and Applied Math section of a collection ...more>>

  30. The Uniform Polyhedra - Roman Maeder
    A shortened version of the notebook Polyhedra.ma from Illustrated Mathematics [Gloor/Amrhein/Maeder95]. Uniform polyhedra have regular faces and congruent vertices. Allowing for non-convex faces and vertex figures, there are 75 such polyhedra, as well ...more>>

  31. Unifpack (Web version 2.0) - Carlos O'Ryan Lira
    A set of programs and C libraries for studying Riemann Surfaces with symmetry. Unifpack accepts a presentation of a finite group and calculates the Cayley graph of the group for that presentation. If the presentation is "admissible," Unifpack can calculate ...more>>

  32. Union of Bulgarian Mathematicians (UBM)
    A voluntary, creative, non-political organisation whose purpose is to bring together people who are interested in Mathematics and Computer science or are involved in activities related to those fields. Contact info, meetings. ...more>>

  33. Unique Online Math Flash Cards - Lambert Smith, MathRUS.com
    Customizable formatting characterizes these flash cards for addition, subtraction, some multiplication and some division. Free 30-day trial; afterwards, a subscription is pay-what-you-can. The author writes: "This website for online math flash cards differs ...more>>

  34. Unit Conversion and Day of the Week - Stephen Phillips
    Convert between units of distance, area, volume, mass, speed, temperature, pressure, energy, power, or force online, or find the day of the week for a given date. There is also a list of conversion factors for various units, including units of radiation, ...more>>

  35. UnitConversion.org
    Perform online unit conversions for volume, distance, temperature, time, speed, and more for a total of 2,100 kinds of units in 78 different categories. ...more>>

  36. Unit Conversions, Unit Cancellation - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about unit conversions and cancellations, from "Convert: 3.25 cm to millimeters...." to "If you can run 100 meters in 10 seconds, how long, in days, hours, and minutes, does it take you to run 12,800,000 meters?" ...more>>

  37. Unit Converter
    The converter works for units of area, energy, pressure, volume, temperature, mass, length, numbers, velocity etc. You put in a number and select a base unit and select a unit to convert to. The conversion result will immediately appear in the output ...more>>

  38. Uniteasy: Scientific Unit Conversion and Dictionary
    The site contains a variety of unit converters, including for space and time (angle, area, length, time, velocity, volume, solid angle, and astronomical distance), electricity, acoustics, chemical, mechanics, magnetism, IT, heat/energy, light, and radiation. ...more>>

  39. The United States and the Metric System - Office of Information Services, National Institute of Standards and Technology (NIST)
    A capsule history, with questions and answers, a metric chocolate chip cookie recipe, and some sample size relations (kilogram of butter to pound, etc.). ...more>>

  40. United States Historical Census Data Browser - Paul Bergen
    A database on the people and the economy of the US for each state and county from 1790 to 1970. Data include historical census figures and general population characteristics such as "number of free white females," "number of free colored males," and "number ...more>>

  41. UnitJuggler: Online Unit Conversions - Pierre Di Marco
    UnitJuggler offers free unit conversions, for distance and length, area, volume, weight and mass, temperature, time, and more. ...more>>

  42. UnitMath Example: Geometric Solids - Paul M. Price
    Examples of how to use UnitMath with geometric solids: box (rectangular parallelepiped), cone (right circular), cylindrical solids (can - right circular cylinder; horizontal cylinder, partly filled), oblate spheroid, prolate spheroid, spherical solids ...more>>

  43. UnitMath - Paul M. Price
    A calculation utility program for Mac or Windows, designed to answer questions written as equations made up of numbers, units (a unit is a quantity in terms of which the magnitudes of other quantities of the same type can be stated), precision, and operators. ...more>>

  44. Unit Measurement Conversion - NASA Lewis Learning Technologies Project
    Which statement is NOT correct? 96 cups = 6 gallons; 9 days = 216 hours; 84 ounces = 7 pounds; 2 miles = 10,560 feet. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  45. The Units of Measure C++ Library - Keith Nicewarner
    The purpose of this library is to try to make it more difficult to make coding mistakes that incorrectly mix units of measure. This is done with a set of C++ classes that provide type-safe manipulation of units of measure for various properties. ...more>>

  46. Units of Measurement for Ada - Dmitry A. Kazakov
    Public domain software for dealing with physical measurement units. The library provides physically correct unit arithmetic and tools for input and output of units, which including support of various irregular units. As an illustrative example a platform-independent ...more>>

  47. Units of Measurement - NASA Lewis Learning Technologies Project
    Which object is matched with its appropriate unit of measurement? Milligrams for the weight of a textbook; Kilometers for the length of a sailboat; Grams for the weight of a needle; Kiloliters for the capacity of a reservoir. A detailed answer is provided. ...more>>

  48. UnitWiz
    An online calculator converts units of length, area, density, energy, force, mass, power, pressure, speed, temperature, or volume. ...more>>

  49. Univalg - eGroups, Inc.
    Mailing list for use by the Universal Algebra community: subscribe here, or browse archive by month. (Universal Algebra is a technical branch of mathematics related to algebra and model theory.) ...more>>

  50. The Universal Currency Converter - Xenon Laboratories Incorporated
    An interactive currency table. Versions are available in English, Spanish, and Swedish. The Universal Currency Converter™ allows you to perform interactive foreign exchange rate conversion on the Internet. Type the amount of source currency in the input ...more>>


 
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