#include <Power.hh>

Inheritance diagram for Genfun::Power:

Public Member Functions
	Power (double n)

	Power (int n)

	Power (unsigned int n)

	Power (const Power &right)

virtual	~Power ()

virtual double	operator() (double argument) const override

virtual double	operator() (const Argument &a) const override

Derivative	partial (unsigned int) const override

virtual bool	hasAnalyticDerivative () const override

Public Member Functions inherited from Genfun::AbsFunction
	AbsFunction ()

	AbsFunction (const AbsFunction &right)

virtual	~AbsFunction ()

virtual unsigned int	dimensionality () const

virtual double	operator() (double argument) const =0

virtual double	operator() (const Argument &argument) const =0

virtual AbsFunction *	clone () const =0

virtual FunctionComposition	operator() (const AbsFunction &f) const

virtual ParameterComposition	operator() (const AbsParameter &p) const

Derivative	derivative (const Variable &v) const

Derivative	prime () const

virtual bool	hasAnalyticDerivative () const

virtual Derivative	partial (unsigned int) const

Detailed Description

Author

Definition at line 19 of file Power.hh.

Constructor & Destructor Documentation

◆ Power() [1/4]

Genfun::Power::Power ( double n )

Definition at line 19 of file Power.cc.

                    :
    _doublePower(n),
    _asInteger(false)
{}

◆ Power() [2/4]

Genfun::Power::Power ( int n )

Definition at line 9 of file Power.cc.

                 :
    _intPower(n),
    _asInteger(true)
{}

◆ Power() [3/4]

Genfun::Power::Power ( unsigned int n )

Definition at line 14 of file Power.cc.

                          :
    _intPower(n),
    _asInteger(true)
{}

◆ Power() [4/4]

Genfun::Power::Power ( const Power & right )

Definition at line 24 of file Power.cc.

    : AbsFunction(right),
      _doublePower(right._doublePower),
      _intPower(right._intPower),
      _asInteger(right._asInteger)
{}

◆ ~Power()

Genfun::Power::~Power ( )

virtual

Definition at line 31 of file Power.cc.

31 {

32}

Member Function Documentation

◆ hasAnalyticDerivative()

virtual bool Genfun::Power::hasAnalyticDerivative ( ) const

inlineoverridevirtual

Reimplemented from Genfun::AbsFunction.

Definition at line 45 of file Power.hh.

45{return true;}

◆ operator()() [1/2]

virtual double Genfun::Power::operator() ( const Argument & a ) const

inlineoverridevirtual

Implements Genfun::AbsFunction.

Definition at line 39 of file Power.hh.

39{return operator() (a[0]);}

Genfun::Power::operator()

virtual double operator()(double argument) const override

Definition: Power.cc:34

◆ operator()() [2/2]

double Genfun::Power::operator() ( double argument ) const

overridevirtual

Implements Genfun::AbsFunction.

Definition at line 34 of file Power.cc.

                                        {
    if (_asInteger) {
    if (_intPower==0) {
        return 1;
    }
    else if (_intPower>0) {
        double f = 1;
        for (int i=0;i<_intPower;i++) {
        f *=x;
        }
        return f;
    }
    else {
        double f = 1;
        for (int i=0;i<-_intPower;i++) {
        f /=x;
        }
        return f;
    }       
    }
    else {
    return std::pow(x,_doublePower);
    }
 
}

Referenced by operator()().

◆ partial()

Derivative Genfun::Power::partial ( unsigned int ) const