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ROOT::Math::Roots::Steffenson Class Reference

Steffenson method, providing the fastes convergence.

See the GSL manual for more information

Definition at line 178 of file RootFinderAlgorithms.h.

Public Member Functions

 Steffenson ()
 ~Steffenson () override
- Public Member Functions inherited from ROOT::Math::GSLRootFinderDeriv
 GSLRootFinderDeriv ()
 ~GSLRootFinderDeriv () override
int Iterate () override
 iterate (return GSL_SUCCESS in case of successful iteration)
int Iterations () const override
 Return number of iterations.
const char * Name () const override
 Return name of root finder algorithm.
double Root () const override
 Returns the previously calculated root.
bool SetFunction (const IGradFunction &f, double xstart) override
 Sets the function for algorithms using derivatives.
virtual bool SetFunction (const ROOT::Math::IGenFunction &, double, double)
 Sets the function for the rest of the algorithms.
virtual bool SetFunction (const ROOT::Math::IGradFunction &, double)
 Sets the function for algorithms using derivatives.
bool SetFunction (GSLFuncPointer f, GSLFuncPointer df, GSLFdFPointer fdf, void *p, double Root)
bool Solve (int maxIter=100, double absTol=1E-8, double relTol=1E-10) override
 Find the root (return false if failed)
int Status () const override
 Return the status of last root finding.
- Public Member Functions inherited from ROOT::Math::IRootFinderMethod
 IRootFinderMethod ()
 Default Constructor.
virtual ~IRootFinderMethod ()
 Default Destructor.

Private Member Functions

 Steffenson (const Steffenson &)
Steffensonoperator= (const Steffenson &)

Additional Inherited Members

- Public Types inherited from ROOT::Math::GSLRootFinderDeriv
typedef void(* GSLFdFPointer) (double, void *, double *, double *)
typedef double(* GSLFuncPointer) (double, void *)
- Protected Member Functions inherited from ROOT::Math::GSLRootFinderDeriv
void FreeSolver ()
void SetSolver (GSLRootFdFSolver *s)

#include <Math/RootFinderAlgorithms.h>

Inheritance diagram for ROOT::Math::Roots::Steffenson:

Constructor & Destructor Documentation

◆ Steffenson() [1/2]

ROOT::Math::Roots::Steffenson::Steffenson ( )

Definition at line 187 of file RootFinderAlgorithms.cxx.

◆ ~Steffenson()

ROOT::Math::Roots::Steffenson::~Steffenson ( )

Definition at line 194 of file RootFinderAlgorithms.cxx.

◆ Steffenson() [2/2]

ROOT::Math::Roots::Steffenson::Steffenson ( const Steffenson )

Definition at line 200 of file RootFinderAlgorithms.cxx.

Member Function Documentation

◆ operator=()

Steffenson & ROOT::Math::Roots::Steffenson::operator= ( const Steffenson rhs)

Definition at line 205 of file RootFinderAlgorithms.cxx.

Libraries for ROOT::Math::Roots::Steffenson:

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