Definition: Periodic Function PERIODIC FUNCTION: A function fwhose domain is a
subset of the real numbers is said to be periodic with
period P>Oif the domain offcontains x+Pwhenever it
contains x, and if f(x+P)=f(x)for all real numbers xin its
domain. If a least positive number Pexists that satisfies
this equation, it is called the fundamental period, or if
the context is clear, just the period of the function.
Based on the video about the Exploratory Challenge:
The Paper Plate Model: Where is the Periodic Function