org.joml

Class Math

java.lang.Object

org.joml.Math

public class Math
extends Object

Contains fast approximations of some Math operations.

By default, Math methods will be used by all other JOML classes. In order to use the approximations in this class, start the JVM with the parameter -Djoml.fastmath.

There are two algorithms for approximating sin/cos:

1. arithmetic polynomial approximation contributed by roquendm
2. theagentd's linear interpolation variant of Riven's algorithm from http://www.java-gaming.org/

By default, the first algorithm is being used. In order to use the second one, start the JVM with -Djoml.sinLookup. The lookup table bit length of the second algorithm can also be adjusted for improved accuracy via -Djoml.sinLookup.bits=<n>, where <n> is the number of bits of the lookup table.

Author:

Kai Burjack

Field Summary

Fields

Modifier and Type	Field and Description
static double	PI

Constructor Summary

Constructors

Constructor and Description
Math()

Method Summary

Modifier and Type	Method and Description
static double	abs(double r)
static float	abs(float r)
static double	acos(double r)
static double	asin(double r)
static double	atan2(double y, double x)
static double	cos(double rad)
static double	cosFromSin(double sin, double angle)
static double	exp(double a)
static double	floor(double v)
static double	max(double a, double b)
static float	max(float a, float b)
static int	max(int x, int y)
static double	min(double a, double b)
static float	min(float a, float b)
static int	min(int x, int y)
static double	sin(double rad)
static double	sqrt(double r)
static double	tan(double r)
static double	toDegrees(double angles)
static double	toRadians(double angles)

Methods inherited from class java.lang.Object

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

Field Detail

PI

public static final double PI

See Also:

Constant Field Values

Constructor Detail

Math

public Math()

Method Detail

sin

public static double sin(double rad)

cos

public static double cos(double rad)

cosFromSin

public static double cosFromSin(double sin,
                                double angle)

sqrt

public static double sqrt(double r)

tan

public static double tan(double r)

acos

public static double acos(double r)

atan2

public static double atan2(double y,
                           double x)

asin

public static double asin(double r)

abs

public static double abs(double r)

abs

public static float abs(float r)

max

public static int max(int x,
                      int y)

min

public static int min(int x,
                      int y)

min

public static float min(float a,
                        float b)

max

public static float max(float a,
                        float b)

min

public static double min(double a,
                         double b)

max

public static double max(double a,
                         double b)

toRadians

public static double toRadians(double angles)

toDegrees

public static double toDegrees(double angles)

floor

public static double floor(double v)

exp

public static double exp(double a)