In mathematics, value may refer to several, strongly related notions:
For example, if the function f{\displaystyle f} is defined by f(x)=2x2−3x+1{\displaystyle f(x)=2x^{2}-3x+1}, then, given the value 3 to the variable x yields the function value 10 (since indeed 2 · 32 – 3 · 3 + 1 = 10). This is denoted f(3)=10.{\displaystyle f(3)=10.}