Pythagoras, the man behind the Pythagorean theorem was more than just a mathematician. He was a spiritual leader with followers who thought he’d been sent from Heaven. For the Pythagoreans, math was a religious experience and some equations were divine secrets, unfit for public eyes.
When your middle school teacher showed you how to find the hypotenuse of a right triangle, you probably didn’t get down on your knees and start worshiping him as a god. But when it first happened in ancient Greece, that was pretty much how people reacted.
There was a whole cult behind the man who figured out how to measure the side of a triangle, and—as you might imagine—they had some pretty strange beliefs.