Definition:Absolute Value

Ordered Integral Domain
We can go still further back, and consider the general ordered integral domain:

Also known as
The absolute value of $x$ is sometimes called the modulus or magnitude of $x$, but note that modulus has a more specialized definition in the domain of complex numbers, and that magnitude has a more specialized definition in the context of vectors.

Also see

 * Equivalence of Definitions of Absolute Value Function‎


 * Absolute Value is Functional


 * Absolute Value is Norm