org.jquantlib.math

Class PrimeNumbers

java.lang.Object

org.jquantlib.math.PrimeNumbers

public class PrimeNumbers
extends java.lang.Object

This class creates an ArrayList of prime numbers, stored as long. This class is 'bootstrapped', and longs are calculated on demand. Therefore, if a time senstitve aspect of the application requires the quick retrieval of a prime, this array should be pre-fetched and populated before that quick need arises.

Once a prime has been calculated, it will be stored for the life of the JVM.
ALGO: The algorithm used from QuantLib is not very efficient, because it skips only multiples of 2, and checks each number after that. really, it could also skip multiples of 3,5,7,etc... In ohter words once a prime has been calculated, you can just skip over that multiple too. // TODO fill in a latex algo for later.

Constructor Summary

Constructors

Constructor and Description
PrimeNumbers()

Method Summary

Modifier and Type	Method and Description
long	get(int absoluteIndex)
long	nextPrimeNumber()

Methods inherited from class java.lang.Object

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

Constructor Detail

PrimeNumbers

public PrimeNumbers()

Method Detail

get

public long get(int absoluteIndex)

nextPrimeNumber

public long nextPrimeNumber()