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  All Sites - 5509 items found, showing 3701 to 3750

  1. The N Queens Problem - Marty Hall
    Finding a solution to the N-Queens problem for any N greater than or equal to 4 can be done without searching. Determining where each queen should go can be done in constant time per queen, or O(N) altogether. Thus, drawing the board (which is O(N^2)) ...more>>

  2. The Nth Prime Page - Andrew Booker
    A form into which you can enter a value for n, from 1 to 10^12, inclusive. The server will return the nth prime number (counting 2 as the first). Commas and scientific notation (e.g. 1.0e12) are allowed. Also a Pi function: enter a value for x, from 1 ...more>>

  3. NT Number Theory (Front for the Mathematics ArXiv) - Univ. of California, Davis
    Number Theory preprints, from the U.C. Davis front end for the xxx.lanl.gov e-Print archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic. ...more>>

  4. Null Science - Ivars Peterson - Science News Online
    A growing number of psychologists charge that their field needs to wean itself from the mindless application of certain statistical practices, especially a technique known as null hypothesis or significance testing, where the investigator typically gathers ...more>>

  5. numb3rs blog - Mark Bridger, Department of Mathematics, Northeastern University
    A blog where math professor Bridger posts mathematical comments on the TV show "Numb3rs". Dating back to February, 2005, posts include "Math and March Madness" and "Random motion and Fokker-Planck" and "Acoustic fingerprints and the JFK assassination" ...more>>

  6. NUMB3RS - CBS Broadcasting Inc.
    NUMB3RS depicts how the confluence of police work and mathematics helps solve criminal questions. Watch video clips of actors Rob Morrow and David Krumholtz on the set, as well as trailers of the television show and previews of upcoming episodes. ...more>>

  7. NumberADay - The Mathematical Association of America (MAA)
    Every working day, a new positive integer, with a selection of its properties and an illustration or photograph. ...more>>

  8. Number Dictionary - Gerardis Giannis, Tsibourakis Dimitris
    Enter a number to see its characteristics, such as primality, Fibonacci numbers, factorization, sum of first primes, sum of two squares, triangular numbers, roots, perfect numbers, and more... ...more>>

  9. The Number Empire - Vitalii Vanovschi
    Enter a positive integer up to 10^12, press the "Go!" button, and The Number Empire states -- in yes/no format -- whether you entered a prime number, a Bell number, a Catalan number, or a factorial. The same single click displays the integer written out ...more>>

  10. Number Gossip - Tanya Khovanova
    Searchable database up to the number 10,000. Checks more than 40 fun predefined properties of numbers, and shows many original and unique properties of an input number. See also this math coach's math blog, lectures, and more from her home page. ...more>>

  11. numbermaze - Mike Reilly & Jenks Norwalk
    A Sudoku-like maze puzzle that uses the number pattern from a clock face, one through twelve. Link these numbers in either direction - clockwise or counterclockwise - through the maze to solve the puzzle. Read complete rules, path strategy, hints, and ...more>>

  12. The Number of Latin Rectangles [PDF] - Peter Doyle
    A paper that shows how to generate an expression for the number of k-line Latin rectangles for any k. The computational complexity of the resulting expression, as measured by the number of additions and multiplications required to evaluate it, is on the ...more>>

  13. Numberphile - Brady Haran
    Playful primer videos "about numbers and stuff," typically less than ten minutes long. Watch mathematicians talk about Benford's Law, favourite numbers (in response to a poll conducted by Alex Bellos), spaghetti numbers, Curta calculator, vampire numbers, ...more>>

  14. Numberplay - The New York Times
    Mathematical, logical and scientific puzzles, with solution "recaps." The posts, by Gary Antonick and Pradeep Mutalik, have included "Surreal Hat Tricks," "The Puzzles of Pickover," "Prime Rib at Hogwarts," "Nim for (a) Change," "Phi - The Magic and the ...more>>

  15. Number Puzzles - Erich's Puzzle Palace; Erich Friedman
    Three crossword-grid style puzzles, with numerical operations filled in. Can you fill in the numbers that work? Answers provided. ...more>>

  16. Number Recreations - Shyam Sunder Gupta
    Recreational aspects of number theory, prime numbers, and the like. Currently includes rare numbers, EPORNS (Equal Product Of Reversible Numbers), unique numbers, unlucky 13, fascinating squares, curious properties of 153, and amicable numbers (including ...more>>

  17. Number Server - Ben Coffey
    A REST-like service offering a variety of data for decimal and binary numbers: enter a number and get its sine, cosine, tangent, natural logarithm, square root, square, cube, binary, hexadecimal, octal, the single-digit sum of the digits, and more. Output ...more>>

  18. Numbers from 1 to 10 in Over 4000 Languages - Mark Rosenfelder
    Click on the map to move to the languages for that area, or select from: Indo-European, Dravidian, and minor European languages; Afro-Asiatic, Caucasian, Nilo-Saharan, Kordofanian, and Khoisan languages; Niger-Congo languages; Uralic, Altaic, Tai, Austro-Asiatic ...more>>

  19. Numbers (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    Links to sites about particular numbers; dates; palindromes; Gaussian integers; Carmichael numbers; continued fractions; e; Egyptian fractions, mathematics, and numerals; constants; Fermat; Fibonacci numbers; pi; large numbers, sequences, prime numbers, ...more>>

  20. NumberSpiral.com - Robert Sacks
    Instructions, observations, formulas, and a glossary about number spirals, formed by writing the non-negative integers on a ribbon, rolling it up with zero at the center, and arranging the spiral so all the perfect squares line up in a row on the right ...more>>

  21. Number System - Prof. Nam Sun Wang; Univ. of Maryland, College Park, MD
    A handout from a course on Computer Methods in Chemical Engineering, detailing bit and byte definitions, number system background, and conversions among bases: binary, octal, decimal, and hexadecimal systems. ...more>>

  22. Number-Theoretic Hacks - David Eppstein, Theory Group, ICS, UC Irvine
    Simple number-theoretic algorithms. Egyptian Fractions - algorithms and references; C++ implementation of J. H. Conway's "nimber" arithmetic; C++ fast algorithm for computing 2-adic inverse; C program for rational approximation of real numbers; Interference ...more>>

  23. Number Theory - Alex López-Ortiz and the Sci.Math FAQ Team
    Links to information on: Fermat's Last Theorem (History of Fermat's Last Theorem; What is the current status of FLT?; Related Conjectures; Did Fermat prove this theorem?), and Prime Numbers. ...more>>

  24. Number Theory Calculator - Bardesane: Giuseppe Merlino
    A blog with free math programs for Windows: prime numbers, twin prime pairs, Goldbach conjecture, Collatz conjecture, Fibonacci numbers, N = x^2 + y^2, modpow (A^B mod. C), primality test, prime factors, divisors number and sum, Pascal's triangle, nextprime, ...more>>

  25. Number Theory Centres - Keith Matthews, Dept of Math, University of Queensland, Brisbane, Australia
    An alphabetical list of links to international number theory groups and research centres. ...more>>

  26. Number theory - Dario Alpern
    A collection of calculators, tables, and articles about number theory, with an applet that is able to factor large numbers and a quadratic diophantine equation solver. ...more>>

  27. Number Theory - Dave Rusin; The Mathematical Atlas
    A historical introduction to number theory; applications and related fields and subfields; textbooks, reference works, and tutorials; software and tables; other web sites with this focus; and selected topics. ...more>>

  28. Number Theory Foundation
    A foundation for collecting donations from supporters of number theory and disbursing them to encourage research. Supporters have directed available funds towards activities in computational and combinatorial number theory, and also towards general number ...more>>

  29. Number Theory: Historical things - Keith Matthews, Dept. of Math, University of Queensland, Brisbane, Australia
    Biographies of past number theorists and various items of historical interest, including prizes, photos, and mathematical family trees. ...more>>

  30. Number Theory List - Yahoo Groups
    Archives of a mailing list devoted to discussions of the serious mathematical study of the additive and multiplicative properties of positive integers including powers of integers, squares, cubes, triangular, factorial, fibonacci, composite, prime, perfect, ...more>>

  31. Number Theory (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    An extensive list of links to sites with information about number theory, classified by level and type of resource. ...more>>

  32. Number Theory (MathPages) - Kevin Brown
    More than 100 "informal notes" by Kevin Brown on number theory: linear recurring sequences, Zeisel numbers, Wilsonian primes, arithmetic progression, sublime numbers, square triangular numbers, and many more. ...more>>

  33. Number Theory Web - Keith Matthews, Dept of Math, University of Queensland, Brisbane, Australia
    A collection of links to online information of interest to number theorists everywhere, including number theorists' home pages and departmental listings. ...more>>

  34. Number Watch - John Brignell
    "All about the scares, scams, junk, panics, and flummery cooked up by the media, politicians, bureaucrats, so-called scientists and others who try to confuse you with wrong numbers." A site devoted to the monitoring of the misleading numbers that rain ...more>>

  35. numberworld.org - Alexander J. Yee
    Yee takes mathematical constants such as pi, SQRT2, the golden ratio, e, log(2), log(10), and zeta(3) and calculates them to billions of digits. Read about and download y-cruncher, his multi-threaded pi-program. See also his timetable of notable large ...more>>

  36. The Number Years - Libicki, Quinn
    A concept originally created by Eric Libicki as a classroom activity to bring a sense of fun to learning the history of mathematics, now in the game show format presented here. Several online versions are available, and users will be able to craft their ...more>>

  37. The Numerical Algorithms Group (NAG) - Oxford, UK
    Products and services; libraries for the solution of mathematical problems: numerical software; statistical software covering all areas of statistical computation; compilers, tools, and code coverters for developers and programmers, symbolic software ...more>>

  38. Numerical Analysis - Dave Rusin; The Mathematical Atlas
    A short article designed to provide an introduction to numerical analysis: the study of methods of computing numerical data. In many problems this implies producing a sequence of approximations; thus the questions involve the rate of convergence, the ...more>>

  39. Numerical Analysis Digest Search Interface - Netlib
    The NA Digest is a collection of articles on topics related to numerical analysis and those who practice it. All issues are indexed using Glimpse. To execute a search, enter a phrase or word into the form and choose the appropriate settings for your query. ...more>>

  40. Numerical Analysis - Jean-Pierre Moreau
    Numerical analysis source code in BASIC, C++, FORTRAN, or Pascal. Program topics include real and complex roots, evaluation of Bessel functions, signal processing, matrices, and statistics. ...more>>

  41. Numerical Analysis - Math Forum
    Links to some of the best Internet resources for numerical analysis: Web sites, software, Internet projects, publications, and public forums for discussion. ...more>>

  42. Numerical Analysis & Numerical Methods Project - John Mathews
    Extensive modules & tutorials: solution of linear and nonlinear equations, interpolation and polynomial approximation, curve fitting, numerical differentiation and integration, numerical optimization, solution of ordinary and partial differential equations, ...more>>

  43. Numerical Integration: Accumulating Rates of Change - Geometry Center
    The fundamental theorem of calculus tells us that if we know the rate of change of some quantity, then adding up (or integrating) the rate of change over some interval will give the total change in that quantity over the same interval. But often scientists ...more>>

  44. Numerical Integration Tutorial - Joseph L. Zachary
    A tutorial that explores rectangular and trapezoidal methods for numerical integration. Includes a Java applet that opens in a separate window, for use alongside the tutorial. From a Computer Science course at the University of Utah, and the book Introduction ...more>>

  45. A Numerical Library in Java - Hang T. Lau
    The book contains the source code of a comprehensive numerical library in Java. The library can be used to solve a wide range of numerical problems in linear algebra, the numerical solution of ordinary and partial differential equations, Fast Fourier ...more>>

  46. Numerical Mathematics
    Numerical mathematics software and general explanations of methods used. ...more>>

  47. Numerical Methods - Douglas N. Arnold; Mathematics Dept., Penn State University
    An extensive list of centers (including online services and search engines), individual libraries, other sites (general and specific), journals, books, online publications, and other resources for numerical methods. ...more>>

  48. Numerical Problems (Algorithm Design Manual) - Steven S. Skiena
    A chapter from the Algorithm Design Manual, by Steven S. Skiena. Specific algorithms: Solving Linear Equations; Bandwidth Reduction; Matrix Multiplication; Determinants and Permanents; Constrained and Unconstrained Optimization; Linear Programming; Random ...more>>

  49. Numerical Recipes in C: The Art of Scientific Computing - Books On-Line - Press, Teukolsky, Vetterling, Flannery; Cambridge University Press
    An on-line book available in Adobe Acrobat or PostScript formats that outlines the method of organizing a program, and then provides the methodology and (copyrighted) source code in the C programming language for: linear algebraic equations, interpolation ...more>>

  50. Numerical Relativity Group - Penn State University
    A group established to promote interaction between students, post-docs and faculty interested in the computational aspects of General Relativity and its applications to Cosmology and Astrophysics. The group members are affiliated with the Departments ...more>>


 
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