Difference between revisions of "Number"
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Revision as of 16:04, 15 September 2015
A number is a mathematical object used in counting, measurement, and labelling.
(TO DO: expand, organize, cross-reference, illustrate.)
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:
In common usage, the term number may refer to:
- A symbol
- A word, for example "two" -- see Numeral (linguistics)
- A mathematical abstraction
See also
- Abstraction (mathematics)
- Binary number
- Counting
- Glyph
- Hexadecimal
- Integer
- Mathematics
- Mathematical object
- Measurement
- Natural number
- Numeral system
- Positional notation
- Symbol
Numbers:
External links
- Number @ Wikipedia
