StrictNaturalLogarithm (Jep with extensions API )

java.lang.Object
- com.singularsys.jep.functions.PostfixMathCommand
- - com.singularsys.jep.functions.UnaryFunction
  - - com.singularsys.jep.functions.StrictNaturalLogarithm

All Implemented Interfaces:

PostfixMathCommandI, RealUnaryFunction, java.io.Serializable
```
public class StrictNaturalLogarithm
extends UnaryFunction
implements RealUnaryFunction
```
A strict version of Natural logarithm. For negative Double arguments his class will return Double.NaN. The standard NaturalLogarithm class will convert treat the argument and compute the complex logarithm.

See Also:

Serialized Form

Field Summary
- Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
  curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

Constructors
Constructor Description

StrictNaturalLogarithm()
Standard base-e logarithm.

StrictNaturalLogarithm(double base)
Logarithm to any other base.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`eval(java.lang.Object arg)`
`double`	`evaluate(double val)`
`java.lang.Object`	`ln(java.lang.Object param)`

Methods inherited from class com.singularsys.jep.functions.UnaryFunction
instanceOf, instanceOf, run

Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - StrictNaturalLogarithm
```
public StrictNaturalLogarithm(double base)
```
    Logarithm to any other base. new StrictNaturalLogarithm(10) for base 10, new StrictNaturalLogarithm(2) for base 2.
    
    Parameters:
    
    base - base to use
  - StrictNaturalLogarithm
```
public StrictNaturalLogarithm()
```
    Standard base-e logarithm.
- Method Detail
  - eval
```
public java.lang.Object eval(java.lang.Object arg)
                      throws EvaluationException
```
    Specified by:
    
    eval in class UnaryFunction
    
    Throws:
    
    EvaluationException
  - ln
```
public java.lang.Object ln(java.lang.Object param)
                    throws EvaluationException
```
    Throws:
    
    EvaluationException
  - evaluate
```
public double evaluate(double val)
```
    Specified by:
    
    evaluate in interface RealUnaryFunction