The formula for the distance between two vectors. In mathematics a metric or distance function is a function that defines a distance between each pair of point elements of a setA set with a metric is called a metric space. So Ive drawn a little picture here.
The Distance Formula is a variant of the Pythagorean Theorem that you used back in geometry.
View Calculus 3 Tutors. Suppose youre given the two points 2 1 and 1 5 and they want you to find out how far apart they are. It also shows you how to derive the distance form. Theorem 1 Symmetry Property of Distance.