Difference between revisions of "Number"
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Revision as of 06:46, 3 April 2016
A number is a mathematical object used in counting, measurement, and labelling.
Contents
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
General topics
- Abstraction (mathematics)
- Approximation
- Binary number
- Calculation
- Computing
- Counting
- Expression (mathematics)
- Glyph
- Hexadecimal
- Integer
- Irrational number
- Logarithm
- Mathematical constant
- Mathematical object
- Mathematics
- Measurement
- Natural logarithm
- Natural number
- Numeral system
- Numerical analysis
- Numerical identification
- Operation (mathematics)
- Percentage
- Positional notation
- Quantity
- Ratio
- Rational number
- Real number
- Serial number
- Symbol
- The Magical Number Seven, Plus or Minus Two
- Unique identifier
- Value (mathematics)
Numbers
External links
- Number @ Wikipedia
