com.singularsys.jep.functions
Class NaturalLogarithm

java.lang.Object
  com.singularsys.jep.functions.PostfixMathCommand
      com.singularsys.jep.functions.NaturalLogarithm

All Implemented Interfaces:

PostfixMathCommandI, java.io.Serializable

public class NaturalLogarithm
extends PostfixMathCommand

Natural logarithm. For positive Double arguments returns a Double: Math.log(value). For negative Double arguments convert to Complex and return the Complex log: Complex(Math.log(Math.abs(value)),Math.PI) For Complex find the complex logarithm: Complex(Math.log(Math.abs(value)),arg(value))

See Also:

StrictNaturalLogarithm, Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand

curNumberOfParameters, numberOfParameters

Constructor Summary

NaturalLogarithm()

Method Summary

java.lang.Object	ln(java.lang.Object param)
void	run(java.util.Stack<java.lang.Object> inStack) Run the function on the stack.

Methods inherited from class com.singularsys.jep.functions.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<java.lang.Object> inStack)
         throws EvaluationException

Description copied from interface: PostfixMathCommandI

Run the function on the stack. Pops the arguments from the stack, and pushes the result on the top of the stack.

Throws:

EvaluationException

ln

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

Throws:

EvaluationException