It's pi day! Hank explains why this irrational number is important to scientists, and discusses a bit of a controversy that surrounds it.

Learn How to Find the Circumference of a Circle AND the Perimeter of a Semi-Circle!*



Wait… what’s the difference between circumference and *p
erimeter*?
What’s the best way to remember those c
ircle formulas?
And...

In this video, you will explore class variables in Python OOP, how they differ from instance variables, and their use cases in creating shared attributes among class instances.