powerfunction
nounUK /ˈpaʊə ˈfʌŋkʃən/
US /ˈpaʊər ˈfʌŋkʃən/
A power function is a math rule where a number is raised to a power, like x squared.
In the equation y equals x cubed, the power function shows how y grows fast as x gets bigger.
OTHER MEANINGS
2. In computing, a routine that calculates a number raised to a given power.
The program calls a power function to compute 2 to the 10th power.
3. A mathematical relationship where one quantity varies as a fixed power of another.
The area of a square is a power function of its side length.
4. A function of the form f(x) = x^n, where n is a constant.
Squaring and cubing are both simple power functions.