imagingbook.lib.math

Class Arithmetic

java.lang.Object

imagingbook.lib.math.Arithmetic

public abstract class Arithmetic
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static double	EPSILON_DOUBLE
static float	EPSILON_FLOAT

Constructor Summary

Constructors

Constructor and Description
Arithmetic()

Method Summary

Modifier and Type	Method and Description
static boolean	isZero(double x) Test for zero (double version).
static boolean	isZero(float x) Test for zero (float version).
static double	mod(double a, double b) Non-integer version of modulus operator, with results identical to Mathematica.
static int	mod(int a, int b) Integer version of modulus operator (as described in the book).
static double	sqr(double x)
static float	sqr(float x)
static int	sqr(int x)

Methods inherited from class java.lang.Object

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

Field Detail

EPSILON_FLOAT

public static final float EPSILON_FLOAT

See Also:

Constant Field Values

EPSILON_DOUBLE

public static final double EPSILON_DOUBLE

See Also:

Constant Field Values

Constructor Detail

Arithmetic

public Arithmetic()

Method Detail

sqr

public static int sqr(int x)

sqr

public static float sqr(float x)

sqr

public static double sqr(double x)

mod

public static int mod(int a,
                      int b)

Integer version of modulus operator (as described in the book). Calculates a mod b. * Also see here.

Parameters:

a - dividend

b - divisor

Returns:

a mod b

mod

public static double mod(double a,
                         double b)

Non-integer version of modulus operator, with results identical to Mathematica. Calulates a mod b. Also see here.

Parameters:

a - dividend

b - divisor

Returns:

a mod b

isZero

public static boolean isZero(float x)

Test for zero (float version).

Parameters:

x - quantity to be tested

Returns:

true if argument is close to zero

isZero

public static boolean isZero(double x)

Test for zero (double version).

Parameters:

x - quantity to be tested

Returns:

true if argument is close to zero