com.singularsys.jep.functions
Class Logarithm

java.lang.Object
  extended by com.singularsys.jep.functions.PostfixMathCommand
      extended by com.singularsys.jep.functions.Logarithm
All Implemented Interfaces:
PostfixMathCommandI, java.io.Serializable

public class Logarithm
extends PostfixMathCommand

Log base 10.

RJM change return real results for positive real arguments. Speedup by using static final fields. Change to use Java 5 Math.log10() method.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, numberOfParameters
 
Constructor Summary
Logarithm()
           
 
Method Summary
 java.lang.Object log(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

Logarithm

public Logarithm()
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

log

public java.lang.Object log(java.lang.Object param)
                     throws EvaluationException
Throws:
EvaluationException


Copyright © 2008 Singular Systems http://www.singularsys.com/jep