#include <LogGamma.hh>

Inheritance diagram for Genfun::LogGamma:

Public Member Functions
	LogGamma ()

	LogGamma (const LogGamma &right)

virtual	~LogGamma ()

virtual double	operator() (double argument) const override

virtual double	operator() (const Argument &a) 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 LogGamma.hh.

Constructor & Destructor Documentation

◆ LogGamma() [1/2]

Genfun::LogGamma::LogGamma ( )

Definition at line 19 of file LogGamma.cc.

20{}

◆ LogGamma() [2/2]

Genfun::LogGamma::LogGamma ( const LogGamma & right )

Definition at line 22 of file LogGamma.cc.

22 : AbsFunction(right)

23{}

Genfun::AbsFunction::AbsFunction

AbsFunction()

Definition: AbsFunction.cc:23

◆ ~LogGamma()

Genfun::LogGamma::~LogGamma ( )

virtual

Definition at line 25 of file LogGamma.cc.

25 {

26}

Member Function Documentation

◆ operator()() [1/2]

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

inlineoverridevirtual

Implements Genfun::AbsFunction.

Definition at line 36 of file LogGamma.hh.

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

Genfun::LogGamma::operator()

virtual double operator()(double argument) const override

Definition: LogGamma.cc:28

◆ operator()() [2/2]

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

overridevirtual

Implements Genfun::AbsFunction.

Definition at line 28 of file LogGamma.cc.

                                           {
  double y=x,tmp=x+5.5,ser=1.000000000190015,c=2.5066282746310005;
  tmp -= (x+0.5)*log(tmp);
  for (int j=0;j<6;j++) ser += _coefficient[j]/++y;
  return -tmp+log(c*ser/x);
}

Referenced by operator()().

The documentation for this class was generated from the following files:

Public Member Functions