Learn the fundamentals of a Tangent Wave! It is extensively used in physics, engineering, mathematics, and countless other fields. A giant or Ferris wheel is used as an analogy to explain the concept. For this video, although slope of a vertical line is "not defined, n.d. " in mathematics, we've shown it as infinity on the giant wheel. Introducing "n.d." in explaining the concept of tangent wave is a good idea but causes unnecessary confusion for students. When a student reaches higher level math in their career, the difference in n.d. and infinity becomes clearer and fundamental. That is the right time to dig into it, when one realizes the flaws in math itself, giving it the prestigious name of "not defined" or in other words, even mathematicians saying we know how to define it! So apologies for using infinity and undefined together. High school and undergraduate physics, math, and other sciences may benefit from learning fundamentals of this very useful waveform Appreciate your time and thank you for watching my videos! It would be great if you would hit the thumbs up button, subscribe, and share the video with somebody who might be interested in this topic. More videos to follow!