Package com.marcosavard.commons.math

Class Maths

java.lang.Object

com.marcosavard.commons.math.Maths

public class Maths
extends java.lang.Object

A utility class that defines methods missing in java.lang.Mat

Author:

Marco

Constructor Summary

Constructors

Constructor	Description
Maths()

Method Summary

Modifier and Type	Method	Description
static boolean	equal(double d1, double d2)
static boolean	equal(double d1, double d2, double difference)	Tells if double numbers are equal.
static long	factorial(int N)
double	radianToDegree(double radian)	Convert an angle in radian unit to degree units
static double	round(double original, double precision)	Round the full precision value at a given precision.

Methods inherited from class java.lang.Object

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

Constructor Detail

Maths

public Maths()

Method Detail

equal

public static boolean equal(double d1,
                            double d2,
                            double difference)

Tells if double numbers are equal. It is not a good practice to compare double directly, use if (Maths.equal(d1, d2) instead of if (d1 == d2).

Parameters:

d1 - the 1st number

d2 - the 2nd number

difference - (default value EPSILON)

Returns:

true if equal

equal

public static boolean equal(double d1,
                            double d2)

factorial

public static long factorial(int N)

radianToDegree

public double radianToDegree(double radian)

Convert an angle in radian unit to degree units

Parameters:

radian -

Returns:

angle in degree

round

public static double round(double original,
                           double precision)

Round the full precision value at a given precision. For instance, round(Math.PI, 0.01) gives 3.14

Parameters:

original - value

precision -

Returns:

rouned values