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Absolute value

From Mathematics

The absolute value of a number is its magnitude or distance from the origin. Absolute value is defined in real numbers and in complex numbers.

Definition
Absolute value of a real number

The absolute value of a real number n, math, is defined as
math

Definition
Absolute value of a complex number

The absolute value of a complex number math is defined as
math equal to the distance between the number in the complex number plane and the origin.