TFormulaPrimitive

class TFormulaPrimitive : public TNamed

    protected:

      static Int_t BuildBasicFormulas()

    public:

                                TFormulaPrimitive()
                                TFormulaPrimitive(const char* name, const char* formula, TFormulaPrimitive::GenFunc0 fpointer)
                                TFormulaPrimitive(const char* name, const char* formula, TFormulaPrimitive::GenFuncG fpointer, Int_t npar)
                                TFormulaPrimitive(const char* name, const char* formula, TFormulaPrimitive::TFunc0 fpointer)
                                TFormulaPrimitive(const TFormulaPrimitive&)
                                ~TFormulaPrimitive()
                   static Int_t AddFormula(TFormulaPrimitive* formula)
                 static TClass* Class()
                       Double_t Eval(Double_t* x)
                       Double_t Eval(TObject* o, Double_t* x)
                       Double_t Eval(Double_t* x, Double_t* param)
      static TFormulaPrimitive* FindFormula(const char* name)
                virtual TClass* IsA() const
             TFormulaPrimitive& operator=(const TFormulaPrimitive&)
                   virtual void ShowMembers(TMemberInspector& insp, char* parent)
                   virtual void Streamer(TBuffer& b)
                           void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

      static TObjArray* fgListOfFunction  !list of global primitive formulas 
                  void* fFuncG            //!pointer to the TFormula generic function
                  void* fFunc0            //!pointer to the function
                  void* fFunc10           //!pointer to the function
                  void* fFunc110          //!pointer to the function
                  void* fFunc1110         //!pointer to the function
           G__p2memfunc fTFuncG           !pointer to the TFormula generic function
           G__p2memfunc fTFunc0           //! pointer to member function
           G__p2memfunc fTFunc10          //! pointer to member function
           G__p2memfunc fTFunc110         //! pointer to member function
           G__p2memfunc fTFunc1110        //! pointer to member function
                  Int_t fType             type of the function  
                  Int_t fNArguments       number of arguments
                  Int_t fNParameters      number of parameters
                 Bool_t fIsStatic         indication if the function is static

Class Description

*-*-*-*-*-*-*-*-*-*-*The  F O R M U L A   P R I M I T I V E   class*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  =========================
*-*
*-*
*-*    Helper class for TFormula to speed up TFormula evaluation
*-*    TFormula can use all functions registered in the list of TFormulaPrimitives
*-*    User can add new function to the list of primitives
*-*    if FormulaPrimitive with given name is already defined new primitive is ignored
*-*    Example:
*-*      TFormulaPrimitive::AddFormula(new TFormulaPrimitive("Pow2","Pow2",TFastFun::Pow2));
*-*      TF1 f1("f1","Pow2(x)");
*-*
*-*
*-*

find the formula in the list of formulas

 add formula to the list of primitive formulas
 if primitive formula already defined do nothing

 Eval primitive function at point x

 Eval member function of object o at point x

eval primitive parametric function

 built-in functions

Inline Functions

                      void ~TFormulaPrimitive()
                   TClass* Class()
                   TClass* IsA() const
                      void ShowMembers(TMemberInspector& insp, char* parent)
                      void Streamer(TBuffer& b)
                      void StreamerNVirtual(TBuffer& b)
        TFormulaPrimitive& operator=(const TFormulaPrimitive&)