Circular mean

Circular mean is a way to calculate an average when the numbers being added together are angles. They are commonly used in things like finding what direction the wind is blowing or the average direction of a river.

To get the circular mean, you start by drawing a circle with all the angles around it (like a pizza). Then, you pretend that the angle that's farthest away from every other angle is at the top. That angle is your starting point. Then, you add all the other angles together and divide by the number of angles. The angle that you get from dividing is the circular mean. That angle is the average of all the other angles.