<P> In mathematics, a periodic function is a function that repeats its values in regular intervals or periods . The most important examples are the trigonometric functions, which repeat over intervals of 2π radians . Periodic functions are used throughout science to describe oscillations, waves, and other phenomena that exhibit periodicity . Any function that is not periodic is called aperiodic . </P> <P> A function f is said to be periodic with period P (P being a nonzero constant) if we have </P> <Dl> <Dd> f (x + P) = f (x) (\ displaystyle f (x + P) = f (x)) </Dd> </Dl>

How do you find the period of a periodic function