Difference between revisions of "Number"
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| − | A '''number''' is a [[mathematical object]] used in | + | A '''number''' is a [[mathematical object]] used in [[counting]], [[measurement]], and [[labelling]]. |
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== Natural numbers == | == Natural numbers == | ||
Revision as of 12:43, 30 August 2015
A number is a mathematical object used in counting, measurement, and labelling.
Natural numbers
The original examples are the natural numbers 1, 2, 3, and so forth.
Numeral systems
A notational symbol that represents a number is called a numeral.
Other uses
In addition to their use in counting and measuring, numerals are often used for:
- Labels (as with telephone numbers)
- Ordering (as with serial numbers)
- Codes (as with ISBNs).
In common usage, the term number may refer to:
- A symbol
- A word, for example "two" -- see Numeral (linguistics)
- A mathematical abstraction
See also
External links
- Number @ Wikipedia
