Package WildMagic.LibFoundation.Mathematics

Class Mathd

java.lang.Object

WildMagic.LibFoundation.Mathematics.Mathd

All Implemented Interfaces:

java.io.Serializable

public final class Mathd
extends java.lang.Object
implements java.io.Serializable

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Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static double	DEG_TO_RAD
static double	EPSILON
static double	HALF_PI
static double	INV_LN_10
static double	INV_LN_2
static double	INV_PI
static double	LN_10
static double	LN_2
static double	RAD_TO_DEG
private static long	serialVersionUID
static double	SQRT2
static double	TWO_PI
static double	ZERO_TOLERANCE

Constructor Summary

Constructors

Constructor	Description
Mathd()

Method Summary

Modifier and Type	Method	Description
static double	InvSqrt(double dValue)	Calculation of 1/sqrt(dValue)
static double	Log2(float dValue)
static double	SymmetricRandom()	Generate a random number in [-1,1).
static double	UnitRandom()

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

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Constant Field Values

ZERO_TOLERANCE

public static final double ZERO_TOLERANCE

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Constant Field Values

TWO_PI

public static final double TWO_PI

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Constant Field Values

HALF_PI

public static final double HALF_PI

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Constant Field Values

INV_PI

public static final double INV_PI

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Constant Field Values

DEG_TO_RAD

public static final double DEG_TO_RAD

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Constant Field Values

SQRT2

public static final double SQRT2

EPSILON

public static final double EPSILON

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Constant Field Values

RAD_TO_DEG

public static final double RAD_TO_DEG

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Constant Field Values

LN_2

public static final double LN_2

LN_10

public static final double LN_10

INV_LN_2

public static final double INV_LN_2

INV_LN_10

public static final double INV_LN_10

Constructor Detail

Mathd

public Mathd()

Method Detail

InvSqrt

public static double InvSqrt(double dValue)

Calculation of 1/sqrt(dValue)

Parameters:

dValue - value to calculate 1/sqrt(dValue)

Returns:

1/sqrt(dValue)

Log2

public static double Log2(float dValue)

SymmetricRandom

public static double SymmetricRandom()

Generate a random number in [-1,1). The random number generator may be seeded by a first call to SymmetricRandom with a positive seed.

Returns:

a random number in [-1,1)

UnitRandom

public static double UnitRandom()