org.nfunk.jep.function
Class NaturalLogarithm

java.lang.Object
  org.nfunk.jep.function.PostfixMathCommand
      org.nfunk.jep.function.NaturalLogarithm

All Implemented Interfaces:

PostfixMathCommandI

public class NaturalLogarithm
extends PostfixMathCommand

Natural logarithm. RJM Change: fixed so ln(positive Double) is Double.

Field Summary

Fields inherited from class org.nfunk.jep.function.PostfixMathCommand

curNumberOfParameters, numberOfParameters

Constructor Summary

NaturalLogarithm()

Method Summary

java.lang.Object	ln(java.lang.Object param)
void	run(java.util.Stack inStack) Throws an exception because this method should never be called under normal circumstances.

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand

checkNumberOfParameters, checkStack, getNumberOfParameters, setCurNumberOfParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

NaturalLogarithm

public NaturalLogarithm()

Method Detail

run

public void run(java.util.Stack inStack)
         throws ParseException

Description copied from class: PostfixMathCommand

Throws an exception because this method should never be called under normal circumstances. Each function should use it's own run() method for evaluating the function. This includes popping off the parameters from the stack, and pushing the result back on the stack.

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class PostfixMathCommand

Throws:

ParseException

ln

public java.lang.Object ln(java.lang.Object param)
                    throws ParseException

Throws:

ParseException