absoluuttimuuttuja
Absoluuttimuuttuja, known in English as absolute value, is a mathematical function that assigns a non-negative number to any given real number, regardless of its sign. It is denoted by two vertical bars enclosing the number, for example, |x|. The absolute value of a number x is defined as x if x is greater than or equal to zero, and as -x if x is less than zero. This means that for any non-negative number, its absolute value is the number itself, and for any negative number, its absolute value is its positive counterpart.
Geometrically, the absolute value of a number represents its distance from zero on the number line. For