Package micycle.pgs.commons

Class FastAtan2

java.lang.Object

micycle.pgs.commons.FastAtan2

public final class FastAtan2
extends Object

Fast, high-quality polynomial-based atan2 approximation.

Author:

Michael Carleton

Method Summary

Modifier and Type	Method	Description
static double	atan2(double y, double x)	Maximum absolute error of ~0.00085 rad (~0.049º).
static float	atan2(float y, float x)	Maximum absolute error of 0.0015 rad (0.086º).

Methods inherited from class java.lang.Object

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

Method Details

atan2

public static double atan2(double y,
 double x)

Maximum absolute error of ~0.00085 rad (~0.049º).

Returns:

Angle from x axis positive side to (x,y) position, in radians, in [-PI,PI].

atan2

public static float atan2(float y,
 float x)

Maximum absolute error of 0.0015 rad (0.086º).

Returns:

Angle from x axis positive side to (x,y) position, in radians, in [-PI,PI].