com.planeth.common.math
Class MathToolBox

java.lang.Object
  com.planeth.common.math.MathToolBox

public final class MathToolBox

extends java.lang.Object

MathToolBox

Author:

Andreas Grässer, gal@planet-h.com.
created May 14, 2005

Method Summary

static double	acos(double value) Returns the arc cosine
static double	asin(double value) Returns the arc sine
static double	atan(double value) Returns the arc tangent
static double	cos(double angleRad) Returns the cosine
static double	degToRad(double deg) Converts from degrees to radians
static double	getAreaCircle(double diameter) Calculates the area of a circle
static double	getCircumference(double diameter) Calculates the circumference
static double	getHypotenuse(double cathetusA, double cathetusB) Calculates the Hypotenuse of an right angled triangle
static double	getVolumeSphere(double diameter) Calculates the volume of a sphere
static double	radToDeg(double rad) Converts from radians to degrees
static double	randomAngleDeg() Returns a random angle in degrees
static double	randomAngleRad() Returns a random angle in radians
static double	randomDouble(double min, double max) Returns a random double in the selected range
static int	randomInt(int min, int max) Returns a random integer in the selected range
static double	round(double value, int digits) Rounds a double to the defined digits
static double	sin(double angleRad) Returns the sine
static double	tan(double angleRad) Returns the tangent

Methods inherited from class java.lang.Object

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

Method Detail

degToRad

public static double degToRad(double deg)

Converts from degrees to radians

Parameters:

deg -

Returns:

rad

radToDeg

public static double radToDeg(double rad)

Converts from radians to degrees

Parameters:

rad -

Returns:

deg

getVolumeSphere

public static double getVolumeSphere(double diameter)

Calculates the volume of a sphere

Parameters:

diameter - diameter of the sphere

Returns:

the volume of the sphere

getAreaCircle

public static double getAreaCircle(double diameter)

Calculates the area of a circle

Parameters:

diameter - diameter of the circle

Returns:

the area of the circle

getCircumference

public static double getCircumference(double diameter)

Calculates the circumference

Parameters:

diameter - diameter of the circle

Returns:

the circumference

getHypotenuse

public static double getHypotenuse(double cathetusA,
                                   double cathetusB)

Calculates the Hypotenuse of an right angled triangle

Parameters:

cathetusA -

cathetusB -

Returns:

the Hypotenuse of an right angled triangle

atan

public static double atan(double value)

Returns the arc tangent

Parameters:

value - the value whose arc tangent is to be returned

Returns:

the arc tangent of the argument

tan

public static double tan(double angleRad)

Returns the tangent

Parameters:

angleRad - angle in radians

Returns:

the tangent of the argument

asin

public static double asin(double value)

Returns the arc sine

Parameters:

value - the value whose arc sine is to be returned.

Returns:

the arc sine of the argument.

sin

public static double sin(double angleRad)

Returns the sine

Parameters:

angleRad - angle in radians

Returns:

the sine of the argument.

acos

public static double acos(double value)

Returns the arc cosine

Parameters:

value - the value whose arc cosine is to be returned.

Returns:

the arc cosine of the argument.

cos

public static double cos(double angleRad)

Returns the cosine

Parameters:

angleRad - angle in radians

Returns:

cosine of the argument.

round

public static double round(double value,
                           int digits)

Rounds a double to the defined digits

Parameters:

value - Value to be rounded

digits - Number of digits to round

Returns:

the rounded value

randomInt

public static int randomInt(int min,
                            int max)

Returns a random integer in the selected range

Parameters:

min -

max -

Returns:

Returns a random integer in the selected range

randomDouble

public static double randomDouble(double min,
                                  double max)

Returns a random double in the selected range

Parameters:

min -

max -

Returns:

Returns a random double in the selected range

randomAngleRad

public static double randomAngleRad()

Returns a random angle in radians

Returns:

Returns a random angle in radians

randomAngleDeg

public static double randomAngleDeg()

Returns a random angle in degrees

Returns:

Returns a random angle in degrees