This was made to test if it was faster to solve for the hypotenuse of a right triangle using pure trigonometric functions, or the Pythagorean Theorum. As it turns out, the Pythagorean Theorum is considerably faster.
Trigonometry is important to programming, as it is used to rotate a sprite about a specific point, or to calculate the trajectory of a projectile in a game, or to render 3D graphics (The list goes on). However, trigonometry is rough on computers, so trying to find faster ways to complete tasks that use it is helpful.