In math and statistics, you may occasionally need to calculate the slope of a line generated by coordinates in the (x,y) format. The slope is a value that indicates the rate at which the y value of a ...

We consider the class of continuous functions that map an open set Ω ⊆ ℝn to ℝ with an epigraph having (locally) positive reach with an additional property. This class contains all finite convex and ...