Saddle point

A saddle point is a special kind of point in math. It's a point on a graph, which means it has two numbers that tell us how far away it is from the left and bottom edges of the graph. What makes a saddle point special is that the left and right sides of the point slope up and down. It looks like a saddle. Saddle points can be found in some math equations, and they can tell us how the equation works.