org.ojalgo
Class PrimitiveUtils

java.lang.Object
  org.ojalgo.PrimitiveUtils

public final class PrimitiveUtils
extends Object

A utility class for math containing:

• A few things missing from Math
• Useful constants

Author:

apete

Field Summary

static double	HALF
static double	MACHINE_DOUBLE_ERROR
static float	MACHINE_FLOAT_ERROR
static double	ONE
static double	PREFIX_ATTO
static double	PREFIX_CENTI
static double	PREFIX_DECI
static double	PREFIX_DEKA
static double	PREFIX_EXA
static double	PREFIX_FEMTO
static double	PREFIX_GIGA
static double	PREFIX_HECTO
static double	PREFIX_KILO
static double	PREFIX_MEGA
static double	PREFIX_MICRO
static double	PREFIX_MILLI
static double	PREFIX_NANO
static double	PREFIX_PETA
static double	PREFIX_PICO
static double	PREFIX_TERA
static double	PREFIX_YOCTO
static double	PREFIX_YOTTA
static double	PREFIX_ZEPTO
static double	PREFIX_ZETTA
static int[]	PRIME
static double	TWO
static double	ZERO

Method Summary

static double	acosh(double aValue)
static double	asinh(double aValue)
static double	atanh(double aValue)
static double	cosh(double aValue)
static int	gcd(int aValue1, int aValue2) Greatest Common Denominator
static long	gcd(long aValue1, long aValue2)
static double	hypot(double aValue1, double aValue2)
static double	inv(double aValue)
static long	pow10int(int anExponent)
static double	powInt(double aBase, int anExponent)
static int	randomInteger(int aLimit)
static int	randomInteger(int aLower, int aHigher)
static double	sinh(double aValue)
static double	tanh(double aValue)

Methods inherited from class java.lang.Object

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

Field Detail

HALF

public static final double HALF

MACHINE_DOUBLE_ERROR

public static final double MACHINE_DOUBLE_ERROR

MACHINE_FLOAT_ERROR

public static final float MACHINE_FLOAT_ERROR

ONE

public static final double ONE

PREFIX_ATTO

public static final double PREFIX_ATTO

PREFIX_CENTI

public static final double PREFIX_CENTI

PREFIX_DECI

public static final double PREFIX_DECI

PREFIX_DEKA

public static final double PREFIX_DEKA

PREFIX_EXA

public static final double PREFIX_EXA

PREFIX_FEMTO

public static final double PREFIX_FEMTO

PREFIX_GIGA

public static final double PREFIX_GIGA

PREFIX_HECTO

public static final double PREFIX_HECTO

PREFIX_KILO

public static final double PREFIX_KILO

PREFIX_MEGA

public static final double PREFIX_MEGA

PREFIX_MICRO

public static final double PREFIX_MICRO

PREFIX_MILLI

public static final double PREFIX_MILLI

PREFIX_NANO

public static final double PREFIX_NANO

PREFIX_PETA

public static final double PREFIX_PETA

PREFIX_PICO

public static final double PREFIX_PICO

PREFIX_TERA

public static final double PREFIX_TERA

PREFIX_YOCTO

public static final double PREFIX_YOCTO

PREFIX_YOTTA

public static final double PREFIX_YOTTA

PREFIX_ZEPTO

public static final double PREFIX_ZEPTO

PREFIX_ZETTA

public static final double PREFIX_ZETTA

PRIME

public static final int[] PRIME

TWO

public static final double TWO

ZERO

public static final double ZERO

Method Detail

acosh

public static double acosh(double aValue)

asinh

public static double asinh(double aValue)

atanh

public static double atanh(double aValue)

cosh

public static double cosh(double aValue)

gcd

public static int gcd(int aValue1,
                      int aValue2)

Greatest Common Denominator

gcd

public static long gcd(long aValue1,
                       long aValue2)

See Also:

org.ojalgo.utility.PrimitiveUtils.gcd(int,int)

hypot

public static double hypot(double aValue1,
                           double aValue2)

inv

public static double inv(double aValue)

pow10int

public static long pow10int(int anExponent)

powInt

public static double powInt(double aBase,
                            int anExponent)

randomInteger

public static int randomInteger(int aLimit)

Parameters:

aLimit -

Returns:

An integer: 0 <= ? < aLimit

randomInteger

public static int randomInteger(int aLower,
                                int aHigher)

Parameters:

aLower -

aHigher -

Returns:

An integer: aLower <= ? < aHigher

sinh

public static double sinh(double aValue)

tanh

public static double tanh(double aValue)