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ROOT::Math::Roots::Secant Class Reference

Secant algorithm, simplified version of Newton method, which does not require the derivative at every step.

Definition at line 155 of file RootFinderAlgorithms.h.

## Public Member Functions

Secant ()

virtual ~Secant ()

Public Member Functions inherited from ROOT::Math::GSLRootFinderDeriv
GSLRootFinderDeriv ()

virtual ~GSLRootFinderDeriv ()

int Iterate ()
iterate (return GSL_SUCCESS in case of successful iteration)

int Iterations () const
Return number of iterations.

const char * Name () const
Return name of root finder algorithm.

double Root () const
Returns the previously calculated root.

bool SetFunction (const IGradFunction &f, double xstart)
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)
Find the root (return false if failed)

int Status () const
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

Secant (const Secant &)

Secantoperator= (const Secant &)

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::Secant:
[legend]

## ◆ Secant() [1/2]

 ROOT::Math::Roots::Secant::Secant ( )

Definition at line 160 of file RootFinderAlgorithms.cxx.

## ◆ ~Secant()

 ROOT::Math::Roots::Secant::~Secant ( )
virtual

Definition at line 167 of file RootFinderAlgorithms.cxx.

## ◆ Secant() [2/2]

 ROOT::Math::Roots::Secant::Secant ( const Secant & )
private

Definition at line 173 of file RootFinderAlgorithms.cxx.

## ◆ operator=()

 Secant & ROOT::Math::Roots::Secant::operator= ( const Secant & rhs )
private

Definition at line 178 of file RootFinderAlgorithms.cxx.

Libraries for ROOT::Math::Roots::Secant:

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