The absolute value of a Real Number is denoted and given by

where Sgn is the sign function.

The same notation is used to denote the Modulus of a Complex Number ,
, a *p*-adic Number absolute value, or a general Valuation. The
Norm of a Vector is also denoted , although is more commonly used.

Other Notations similar to the absolute value are the Floor Function , Nint function , and Ceiling Function .

© 1996-9

1999-05-25