Some say that numbers aren't as important as actual functions, but we say they are! :-) For anyone who has wondered why 13 is unlucky, why you can't eat pi, or why 1 is the multiplicative identity, this is the category ... [MORE] A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | e | ALL 0 - Zero (4) Fibonacci Numbers (24) Infinity (6) Integers (20) Perfect Numbers@ (15) Pi (82) Prime Numbers@ (78) Pseudorandom Numbers@ (27) phi (27) 1. 37 Heaven - Collects information around the number thirty-seven. 2. Just Who is Mr. 666? - Uses gematria to calculate the number of the beast, and evaluates what it may mean w/r specific Hebrew words and names in the Bible adding up to 666. 3. 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. 4. 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. 5. Arabic numerals - Describes the history of the arabic numeral system that is in use nearly all over the world today. 6. 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. 7. Brun's Constant - Description of the constant, some related work and links to some further reading. 8. Catalan Number -- MathWorld - Illustration of the Catalan numbers related to Euler's polygon division problem. 9. Catalan's Constant - G - Describes the mathematics behind the constant. 10. Deep Thought - 42 - A website devoted to tracking the Ultimate Answer provided by the computer Deep Thought. Lists sightings of the number since early history. 11. Euler-Mascheroni Constant - g - Describes the mathematics behind this constant. 12. FAQ on Special Numbers - Answers to Frequently asked questions about special numbers. 13. Favorite Mathematical Constants - An in-depth explanation of the most important math constants. 14. Feigenbaum Constants - Describes the constants and their mathematical basis. 15. 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. 16. 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. 17. Fun With Numbers - Includes some lists of numerals, relating to basic operations performed on certain constants. Not updated since 1995. 18. 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. 19. Heilbronn Triangle Constants - Heilbronn Triangle Constants 20. Indian numerals - Describes the history of the indian numeral system. 21. Inverse Symbolic Calculator - A set of programs and specialized tables of mathematical constants dedicated to the identification of real numbers. 22. Jewish Encyclopedia: Numbers and Numerals - Discusses the uses and symbolism of various numbers in Hebrew literature. 23. Mathemagic - In praise of the beauty of the numbers pi, e and phi. 24. Mathematical Constants and Computation - Essays, references, links, software. 25. NodeWorks Encyclopedia - Mathematical constant - A list of constants with links to more detailed information. 26. Notable Properties of Specific Numbers - A list of numbers with interesting properties. 27. Number Gossip - Numerous special categories of numbers, searchable. 28. Pi Squared over Six - Dedicated to the transcendental number pi squared over six. 29. 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. 30. 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. 31. 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. 32. Sum Beastliness - Some simple mathematics associated with 666, the Number of the Beast. 33. 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. 34. Triangular Numbers - Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones. 35. Vampire Numbers - Numbers with a factorization containing the same digits, e.g. 1530 = 30*51. 36. Verbose.net - Dedicated to the natural order of the universe and to the irrational and logical chaos it presents. 37. World of Numbers - Contains a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.

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