org.shiftone.bigcalc.math.function
Class NaturalLog

java.lang.Object
  org.shiftone.bigcalc.math.function.NaturalLog

All Implemented Interfaces:

MathConstants

public class NaturalLog

extends java.lang.Object

implements MathConstants

Version:

$Revision: 1.7 $

Author:

$Author: jeffdrost $

Field Summary

Fields inherited from interface org.shiftone.bigcalc.math.MathConstants

BD_239, FIVE, FOUR, I_TWO, ONE, TWO, ZERO

Constructor Summary

NaturalLog()

Method Summary

static java.math.BigDecimal	ln(java.math.BigDecimal x, int scale)
static java.math.BigDecimal	lnOfXplusOne(java.math.BigDecimal x, int scale) ln(1+x) = x - x^2/2 + x^3/3 - ...
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

NaturalLog

public NaturalLog()

Method Detail

lnOfXplusOne

public static java.math.BigDecimal lnOfXplusOne(java.math.BigDecimal x,
                                                int scale)

ln(1+x) = x - x^2/2 + x^3/3 - ... -(-x)^N+1/(N+1) + ...

ln

public static java.math.BigDecimal ln(java.math.BigDecimal x,
                                      int scale)

main

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