Following up on my motion and position tutorial, I present a tutorial on wave-motion. This was something I wanted to include in the original article, but I realized that there’s enough complexity to this concept that it merited its own separate article.
Wavelike motion is any motion that involves periodic oscillation, not just linear undulating motion. (Other types of wavelike motion include pulsing and concentric ripples, for example.) But we’ll talk mostly if not exclusively about linear undulation, since it is easiest to understand, simplest to implement, and the basis for many others.