math

Interface Metric

All Known Implementing Classes:

EuclideanMetric, PostOfficeMetric, RectilinearMetric, SupremumMetric

public interface Metric

The requirements of a Metric.

A Metric is a function that satisfies the following properties for all x,y, z:

distance(x,y) >= 0
distance(x,y) == 0 iff x == y
distance(x,y) == distance(y,x)
distance(x,y) <= distance(x,z) + distance(y,z)

(The last of these properties is called the triangle inequality.)

Version:

1.0

Author:

Prof. David Bernstein, James Madison University

See Also:

"The Design and Implementation of Multimedia Software © 2011"

Method Summary

Modifier and Type	Method and Description
double	distance(double[] x, double[] y) Calculate the distance between two n-dimensional points.

Method Detail

distance

double distance(double[] x,
                double[] y)

Calculate the distance between two n-dimensional points.

Parameters:

x - One n-dimensional point

y - Another n-dimensional point

Returns:

The distance