org.shiftone.bigcalc.math.function
Class Arctan

java.lang.Object
  org.shiftone.bigcalc.core.function.AbstractOneArgumentFunction
      org.shiftone.bigcalc.math.function.Arctan

All Implemented Interfaces:

Function, Functor, MathConstants

public class Arctan

extends AbstractOneArgumentFunction

implements Function, MathConstants

Version:

$Revision: 1.9 $

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

Arctan()

Method Summary

static java.math.BigDecimal	arctan(java.math.BigDecimal x, int scale) arctan(x) = x - (x^3)/3 + (x^5)/5 - (x^7)/7 + (x^9)/9 ...
java.lang.Object	evaluate(Context stdContext, java.lang.Object argument)

Methods inherited from class org.shiftone.bigcalc.core.function.AbstractOneArgumentFunction

evaluate, print, setArguments

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.shiftone.bigcalc.Function

setArguments

Methods inherited from interface org.shiftone.bigcalc.Functor

evaluate, print

Constructor Detail

Arctan

public Arctan()

Method Detail

evaluate

public java.lang.Object evaluate(Context stdContext,
                                 java.lang.Object argument)
                          throws java.lang.Exception

Specified by:

evaluate in class AbstractOneArgumentFunction

Throws:

java.lang.Exception

arctan

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

arctan(x) = x - (x^3)/3 + (x^5)/5 - (x^7)/7 + (x^9)/9 ...