Module org.jgrapht.core

Package org.jgrapht.util

Class MathUtil

java.lang.Object

org.jgrapht.util.MathUtil

public class MathUtil
extends Object

Math Utilities.

Author:

Assaf Lehr

Constructor Summary

Constructors

Constructor	Description
MathUtil()

Method Summary

Modifier and Type	Method	Description
static long	factorial(int n)	Calculate the factorial of $n$.
static int	log2(int n)	Calculate the floor of the binary logarithm of $n$.

Methods inherited from class java.lang.Object

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

Constructor Detail

MathUtil

public MathUtil()

Method Detail

factorial

public static long factorial(int n)

Calculate the factorial of $n$.

Parameters:

n - the input number

Returns:

the factorial

log2

public static int log2(int n)

Calculate the floor of the binary logarithm of $n$.

Parameters:

n - the input number

Returns:

the binary logarithm