Periodic Functions
The first topic to discuss is the periodic functions. Periodic functions are functions whose graphs repeat again and again, or cycle, on a specific period. The period of a function is defined as the length of the smallest continuous portion of the domain over which the function completes one cycle.
The following are examples of periodic functions:
Notice that these periodic functions repeat, again and again, on a specific period, as shown below.
The specific periodic functions that will be discussed are the trigonometric functions.