Class QuadrupleMath

java.lang.Object

gaiasky.util.math.QuadrupleMath

public final class QuadrupleMath
extends Object

Approximates some trigonometric functions using double-precision arithmetics. It also contains the implementation of Object.toString().

Field Summary

Fields

Modifier and Type	Field	Description
static final Quadruple	PI

Method Summary

Modifier and Type	Method	Description
static Quadruple	atan(Quadruple x)	High-level arctan for any x: If |x|≤1, directly use series; else use identity atan(x)=sign(x)*(PI/2 − atan(1/|x|)).
static Quadruple	atan2(Quadruple y, Quadruple x)	Quadrant-aware atan2: y=opposite, x=adjacent
static Quadruple	pi()
static Quadruple	pi2()
static Quadruple	piOver2()

Methods inherited from class Object

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

Field Details

PI

public static final Quadruple PI

Method Details

pi

public static Quadruple pi()

pi2

public static Quadruple pi2()

piOver2

public static Quadruple piOver2()

atan

public static Quadruple atan(Quadruple x)

High-level arctan for any x: If |x|≤1, directly use series; else use identity atan(x)=sign(x)*(PI/2 − atan(1/|x|)).

atan2

public static Quadruple atan2(Quadruple y,
 Quadruple x)

Quadrant-aware atan2: y=opposite, x=adjacent