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 you've been searching for since grade school. Whatever intellectual curiosity has been nagging at you since you first wrote the number 5, you will be likely to find an answer to your question here. And if not, submit your own!
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Definitions of important constants, formulas to compute them and formulas that use them.
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Sites 13
Collects information around the number thirty-seven.
Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever, and writes down explicitly such a number.
Describes the history of the Arabic numeral system that is in use nearly all over the world today.
Illustration of the Catalan numbers related to Euler's polygon division problem.
Answers to Frequently asked questions about special numbers.
Describes the history of the Indian numeral system.
Discusses the uses and symbolism of various numbers in Hebrew literature.
Essays, references, links, software.
Several million digits of e, and the square roots of 2, 3, 5, 6, 7, 8, and 10.
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.
Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones.
A list of constants with links to more detailed information.
Includes a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.
Describes the history of the Arabic numeral system that is in use nearly all over the world today.
Describes the history of the Indian numeral system.
Discusses the uses and symbolism of various numbers in Hebrew literature.
Several million digits of e, and the square roots of 2, 3, 5, 6, 7, 8, and 10.
Includes a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.
Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever, and writes down explicitly such a number.
Essays, references, links, software.
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.
A list of constants with links to more detailed information.
Illustration of the Catalan numbers related to Euler's polygon division problem.
Answers to Frequently asked questions about special numbers.
Collects information around the number thirty-seven.
Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones.
Other languages 1
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June 3, 2023 at 5:35:10 UTC
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- Recently edited by merlin1
- Recently edited by merlin1