# Functions
Distance2 calculates the euclidean distance between two points, as two (x,y) pairs.
Distance3 calculates the euclidean distance between two points, as two (x,y,z) triplets.
NewBoundingRect2 will produce the minimal rectangle that contains all of the input points.
NewBoundingRect3 will produce the minimal rectangle that contains all of the input points.
NewRect2 returns an (X,Y):(X2,Y2) rectangle.
NewRect2WH returns an (X,Y):(X+W,Y+H) rectangle.
NewRect3 returns an (X,Y,Z):(X2,Y2,Z2) rectangle.
NewRect3WH returns an (X,Y,Z):(X+W,Y+H,Z+D) rectangle.