Definition:Absolute Number

Definition

An absolute number is a number in an expression which has a single value.

It is either expressed using actual figures, in an agreed number system, or by a symbol which is understood to represent that specific number.

Examples

Examples of absolute numbers include:

$2$, $\sqrt 5$, $1.976$, $\dfrac 2 3$, $\pi$ (pi), $e$ (Euler's number)

Also see

• Results about absolute numbers can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): absolute number
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): absolute number