13#ifndef ROOT_Math_IParamFunction
14#define ROOT_Math_IParamFunction
77 virtual unsigned int NPar()
const = 0;
166 using BaseFunc::operator();
195 virtual double DoEvalPar(
double x,
const double *p)
const = 0;
256 unsigned int npar =
NPar();
257 for (
unsigned int ipar = 0; ipar < npar; ++ipar)
326 using BaseParamFunc::operator();
334 unsigned int npar =
NPar();
335 for (
unsigned int ipar = 0; ipar < npar; ++ipar)
Documentation for the abstract class IBaseFunctionMultiDim.
Interface (abstract class) for generic functions objects of one-dimension Provides a method to evalua...
Documentation for the abstract class IBaseParam.
virtual void SetParameters(const double *p)=0
Set the parameter values.
virtual const double * Parameters() const =0
Access the parameter values.
virtual std::string ParameterName(unsigned int i) const
Return the name of the i-th parameter (starting from zero) Overwrite if want to avoid the default nam...
virtual ~IBaseParam()
Virtual Destructor (no operations)
virtual unsigned int NPar() const =0
Return the number of Parameters.
Interface (abstract class) for multi-dimensional functions providing a gradient calculation.
Interface (abstract class) for one-dimensional functions providing a gradient calculation.
IParamFunction interface (abstract class) describing multi-dimensional parameteric functions It is a ...
T operator()(const T *x, const double *p) const
Evaluate function at a point x and for given parameters p.
virtual T DoEval(const T *x) const
Implement the ROOT::Math::IBaseFunctionMultiDim interface DoEval(x) using the cached parameter values...
IBaseFunctionMultiDimTempl< T > BaseFunc
T operator()(const T *x) const
virtual T DoEvalPar(const T *x, const double *p) const =0
Implementation of the evaluation function using the x values and the parameters.
Specialized IParamFunction interface (abstract class) for one-dimensional parametric functions It is ...
IBaseFunctionOneDim BaseFunc
virtual double DoEval(double x) const
Implement the ROOT::Math::IBaseFunctionOneDim interface DoEval(x) using the cached parameter values.
virtual double DoEvalPar(double x, const double *p) const =0
Implementation of the evaluation function using the x value and the parameters.
double operator()(double x, const double *p) const
Evaluate function at a point x and for given parameters p.
double operator()(const double *x, const double *p) const
multidim-like interface
Interface (abstract class) for parametric gradient multi-dimensional functions providing in addition ...
T operator()(const T *x, const double *p) const
virtual void ParameterGradient(const T *x, const double *p, T *grad) const
Evaluate the all the derivatives (gradient vector) of the function with respect to the parameters at ...
T ParameterDerivative(const T *x, const double *p, unsigned int ipar=0) const
Evaluate the partial derivative w.r.t a parameter ipar from values and parameters.
T ParameterDerivative(const T *x, unsigned int ipar=0) const
Evaluate partial derivative using cached parameter values.
virtual ~IParametricGradFunctionMultiDimTempl()
Virtual Destructor (no operations)
virtual T DoEvalPar(const T *x, const double *p) const =0
Implementation of the evaluation function using the x values and the parameters.
T operator()(const T *x) const
void ParameterGradient(const T *x, T *grad) const
Evaluate all derivatives using cached parameter values.
virtual T DoParameterDerivative(const T *x, const double *p, unsigned int ipar) const =0
Evaluate the partial derivative w.r.t a parameter ipar , to be implemented by the derived classes.
virtual T DoEval(const T *x) const
Implement the ROOT::Math::IBaseFunctionMultiDim interface DoEval(x) using the cached parameter values...
Interface (abstract class) for parametric one-dimensional gradient functions providing in addition to...
IParametricFunctionOneDim BaseParamFunc
double ParameterDerivative(const double *x, const double *p, unsigned int ipar=0) const
Partial derivative with respect a parameter Compatibility interface with multi-dimensional functions.
IParametricFunctionOneDim::BaseFunc BaseFunc
IGradientFunctionOneDim BaseGradFunc
void ParameterGradient(const double *x, const double *p, double *grad) const
Compatibility interface with multi-dimensional functions.
virtual void ParameterGradient(double x, const double *p, double *grad) const
Evaluate the derivatives of the function with respect to the parameters at a point x.
double ParameterDerivative(const double *x, unsigned int ipar=0) const
Evaluate partial derivative using cached parameter values (multi-dim like interface)
virtual ~IParametricGradFunctionOneDim()
Virtual Destructor (no operations)
void ParameterGradient(double x, double *grad) const
Evaluate all derivatives using cached parameter values.
double ParameterDerivative(double x, unsigned int ipar=0) const
Evaluate partial derivative using cached parameter values.
virtual double DoParameterDerivative(double x, const double *p, unsigned int ipar) const =0
Evaluate the gradient, to be implemented by the derived classes.
void ParameterGradient(const double *x, double *grad) const
Evaluate all derivatives using cached parameter values (multi-dim like interface)
double ParameterDerivative(double x, const double *p, unsigned int ipar=0) const
Partial derivative with respect a parameter.
Namespace for new Math classes and functions.
std::string ToString(const T &val)
Utility function for conversion to strings.
tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tb...