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Sub-Categories in Specific Numbers

0 - Zero (4)
Fibonacci Numbers (24)
Infinity (6)
Integers (27)
Perfect Numbers@ (14)

Pi (82)
Prime Numbers@ (110)
Pseudorandom Numbers@ (31)
e (10)
phi (22)

Web Sites in Category Specific Numbers

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.

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.

Friedmann's S-Numbers - These are numbers where an expression can be given using the operations of addition and squaring, using the digits of a number in order, which gives the original number. Algorithms, theorems and results.

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.

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.

Stewy's Site - The infinitesimal is the opposite of infinity, and mathematicians still argue over its existence. This page probes into one of the weirdest numbers in mathematics.

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 Golden Rectangle.

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.

Related Categories:

Computers > Computer Science > Distributed Computing > Projects > Cryptography
Kids and Teens > School Time > Math > Counting and Numbers
Science > Math > Number Theory

Editors: centic1

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