Periodic versus non-periodic functions (hw1, ECE301)

Read the instructor's comments here.

Periodic Function

A periodic function is a function that has repeating values after a certain period of time and keeps repeating as time continues.

CT periodic function:

$ y = sin(x) $

Non-Periodic Function

DT non-periodic function:

$ y = sin(x) $

Even though the equation is the same, this equation is in discrete time, so it's a non-periodic function.