Specific Numbers

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» Absolutely Abnormal Numbers - Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever, and writes down explicitly such a number.
» Apéry's Constant - Describes the definition of the constant and some interpretations as well as a list of references to further work about the constant.
» Arabic numerals - Describes the history of the arabic numeral system that is in use nearly all over the world today.
» Ask Dr. Math: History of the Terms Google and Googleplex - Explains how these very large numbers (1 followed by a hundred zeroes, and 1 followed by a google of zeroes, respectively) were named. With links to references. From Swarthmore's Dr. Math.
» Brun's Constant - Description of the constant, some related work and links to some further reading.
» Catalan Number -- MathWorld - Illustration of the Catalan numbers related to Euler's polygon division problem.
» FAQ on Special Numbers - Answers to Frequently asked questions about special numbers.
» Factoring Fermat Numbers - A contest to find new factors of Fermat numbers. Offers cash prizes for new factors Fn, for n = 12 through 22.
» Favorite Mathematical Constants - An in-depth explanation of the most important math constants.
» Fibonacci Numbers and The Golden Ratio Link Web Page - A long list of links to pages about Fibonacci and his numbers, the golden ratio and applications in art and science.
» Fibonacci Numbers and the Golden section in Nature - Puzzles and things to do, for schools, teachers, colleges up to university level students, or just for recreation.
» Fun With Numbers - Includes some lists of numerals, relating to basic operations performed on certain constants. Not updated since 1995.
» Golden Ratio and Fibonacci Numbers - Provides information about the golden ratio and Fibonacci numbers, and how they relate to biology, art, and ancient Egyptian art.
» Harry J. Smith's Fun With Mathematics - Fun math stuff, including computing pi, perfect numbers, Fibonacci numbers, the tesseract, a look into 4-dimensional space.
» Heilbronn Triangle Constants - Heilbronn Triangle Constants
» Indian numerals - Describes the history of the indian numeral system.
» Inverse Symbolic Calculator - A set of programs and specialized tables of mathematical constants dedicated to the identification of real numbers.
» Jewish Encyclopedia: Numbers and Numerals - Discusses the uses and symbolism of various numbers in Hebrew literature.
» Mathemagic - In praise of the beauty of the numbers pi, e and phi.
» Mathematical Constants and Computation - Essays, references, links, software.
» Notable Properties of Specific Numbers - A list of numbers with interesting properties.
» Number Gossip - Numerous special categories of numbers, searchable.
» Numbers, Constants and Computation - Mathematical, historical and algorithmic aspects of some classical mathematical constants.
» Pi Squared over Six - Dedicated to the transcendental number pi squared over six.
» RJN's More Digits of Irrational Numbers - Several million digits of e, and the square roots of 2, 3, 5, 6, 7, 8, and 10.
» Special Numbers - Hierarchy of numbers, constants, primes, pascal's triangle, real numbers, number base sSystems and fibonacci numbers explained.
» Square root of 2 - Provides information about the square root of 2, lists the first 1000 digits and provides links to pages with up to 5 million digits. Also contains download links for programming libraries for calculating numbers with high precision or many digits.
» Sum Beastliness - Some simple mathematics associated with 666, the Number of the Beast.
» The Golden Pentagon - MathPages depiction of tiling a plane using a progression of equilateral triangles dividing a pentagon. Most interesting is that this pentagon is uniquely and recursively divided by triangles, just as is seen in the more common recursive division of the G
» The Infinitesimal - The infinitesimal is the opposite of infinity, and mathematicians still argue over its existence. This page probes into one of the wierdest numbers in mathematics.
» Triangular Numbers - Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones.
» Vampire Numbers - Numbers with a factorization containing the same digits, e.g. 1530 = 30*51.
» Verbose.net - Dedicated to the natural order of the universe and to the irrational and logical chaos it presents.
» Wikipedia - Mathematical constant - A list of constants with links to more detailed information.
» World of Numbers - Contains a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.