Value (mathematics)


In mathematics, value may refer to several, strongly related notions.
In general, a mathematical value may be any definite mathematical object. In elementary mathematics, this is most often a number – for example, a real number such as Pi| or an integer such as 42.
For example, if the function is defined by, then assigning the value 3 to its argument yields the function value 10, since.
If the variable, expression or function only assumes real values, it is called real-valued. Likewise, a complex-valued variable, expression or function only assumes complex values.