what is absolute value

The absolute value of a real number is its non-negative value without regard to its sign. It is denoted by |x|, where x is the real number. If x is positive, then |x| is equal to x. If x is negative, then |x| is equal to -x. The absolute value is closely related to the idea of distance. For example, the absolute value of a real or complex number is the distance from that number to the origin, along the real number line, for real numbers, or in the complex plane, for complex numbers. The absolute value of the difference of two real or complex numbers is the distance between them. The absolute value has several fundamental properties, including non-negativity, positive-definiteness, multiplicativeness, and subadditivity. The absolute value of a number can be found by removing the sign of the number, and it can only be a non-negative value.