com.singularsys.jep.functions
Class ArcTanH

java.lang.Object
  com.singularsys.jep.functions.PostfixMathCommand
      com.singularsys.jep.functions.UnaryFunction
          com.singularsys.jep.functions.ArcTanH

All Implemented Interfaces:

PostfixMathCommandI, RealUnaryFunction, java.io.Serializable

public class ArcTanH
extends UnaryFunction
implements RealUnaryFunction

Implements the arcTanH function.

Since:

2.3.0 beta 2 - Now returns Double result rather than Complex for -1

Author:

Nathan Funk

See Also:

Serialized Form

Field Summary

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

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

ArcTanH()
Standard constructor.

ArcTanH(boolean strict)
Controls the behaviour for out of range real arguments

Method Summary

java.lang.Object	atanh(java.lang.Object param)
java.lang.Object	eval(java.lang.Object arg)
double	evaluate(double val)

Methods inherited from class com.singularsys.jep.functions.UnaryFunction

run

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

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, checkStack, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ArcTanH

public ArcTanH()

Standard constructor. For real x with |x|>1 return NaN.

ArcTanH

public ArcTanH(boolean strict)

Controls the behaviour for out of range real arguments

Parameters:

strict - if false returns corresponding complex result if true return NaN

Method Detail

eval

public java.lang.Object eval(java.lang.Object arg)
                      throws EvaluationException

Specified by:

eval in class UnaryFunction

Throws:

EvaluationException

atanh

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

Throws:

EvaluationException

evaluate

public double evaluate(double val)

Specified by:

evaluate in interface RealUnaryFunction