mikera.util.mathz

Class AlternativeMaths

java.lang.Object

mikera.util.mathz.AlternativeMaths

public class AlternativeMaths
extends java.lang.Object

Mostly experimental. Alternative implementation sof maths functions.

Constructor Summary

Constructors

Constructor and Description
AlternativeMaths()

Method Summary

Modifier and Type	Method and Description
static int	max2(int a, int b) Branchless max for ints
static int	min2(int a, int b) Branchless min for ints
static int	sign2(int a) Mike's fast integer sign algorithm
static int	sign2fast(int a) Fast branchless integer sign Not correct for MIN_INTEGER - but valid for all other int values
static double	tanh(double x)

Methods inherited from class java.lang.Object

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

Constructor Detail

AlternativeMaths

public AlternativeMaths()

Method Detail

min2

public static int min2(int a,
                       int b)

Branchless min for ints

max2

public static int max2(int a,
                       int b)

Branchless max for ints

sign2fast

public static int sign2fast(int a)

Fast branchless integer sign Not correct for MIN_INTEGER - but valid for all other int values

tanh

public static double tanh(double x)

sign2

public static final int sign2(int a)

Mike's fast integer sign algorithm

Parameters:

a -

Returns:

Sign of the given number (-1, 0 or 1)