net.myrrix.common.math

Class SimpleVectorMath

java.lang.Object

net.myrrix.common.math.SimpleVectorMath

public final class SimpleVectorMath
extends Object

Simple utility methods related to vectors represented as simple float[]s.

Since:

1.0

Author:

Sean Owen

Method Summary

Methods

Modifier and Type	Method and Description
static double	distanceSquared(float[] x, float[] y)
static double	dot(float[] x, float[] y)
static double	norm(double[] x)
static double	norm(float[] x)
static void	normalize(float[] x)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

dot

public static double dot(float[] x,
         float[] y)

Returns:

dot product of the two given arrays

norm

public static double norm(float[] x)

Returns:

the L2 norm of vector x

norm

public static double norm(double[] x)

Returns:

the L2 norm of vector x

distanceSquared

public static double distanceSquared(float[] x,
                     float[] y)

Returns:

the square of the distance between the vectors x and y

normalize

public static void normalize(float[] x)

Parameters:

x - vector that will modified to have unit length