org.metasyntactic.math
Class Counting

java.lang.Object
  |
  +--org.metasyntactic.math.Counting

public class Counting

extends java.lang.Object

Constructor Summary

Counting()

Method Summary

static java.math.BigInteger	choose(long n, long k) Intelligent memorysensitive method to calculate n choose k
static java.math.BigInteger	factorial(long n)
static java.math.BigInteger	factorial(long n, long k)
static void	main(java.lang.String[] args)
static Set	permutation(Set set)
static Set	permutation(Set set, int k)

Methods inherited from class java.lang.Object

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

Constructor Detail

Counting

public Counting()

Method Detail

permutation

public static Set permutation(Set set)

permutation

public static Set permutation(Set set,
                              int k)

main

public static void main(java.lang.String[] args)

choose

public static java.math.BigInteger choose(long n,
                                          long k)

Intelligent memorysensitive method to calculate n choose k

factorial

public static java.math.BigInteger factorial(long n)

factorial

public static java.math.BigInteger factorial(long n,
                                             long k)