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ROOT::Math::GSLMultiRootDerivSolver Class Reference
Math » Core Math Functionality (MathCore) » Numerical Algorithms » Multidimensional ROOT finding

GSLMultiRootDerivSolver, internal class for implementing GSL multi-root finders using derivatives.

Definition at line 255 of file GSLMultiRootSolver.h.

Public Member Functions

 GSLMultiRootDerivSolver (const gsl_multiroot_fdfsolver_type *type, int n)
 Constructor.
 
 GSLMultiRootDerivSolver (const GSLMultiRootDerivSolver &)=delete
 
 GSLMultiRootDerivSolver (GSLMultiRootDerivSolver &&)=delete
 
 ~GSLMultiRootDerivSolver () override
 Destructor (no operations)
 
void CreateSolver (const gsl_multiroot_fdfsolver_type *type, unsigned int n)
 create the solver from the type and size of number of fitting points and number of parameters
 
const double * Dx () const
 return function steps
 
const double * FVal () const
 return function values
 
gsl_vector * GetDx () const override
 return function steps
 
gsl_vector * GetF () const override
 return function values
 
gsl_vector * GetRoot () const override
 solution values at the current iteration
 
bool InitSolver (const std::vector< ROOT::Math::IMultiGenFunction * > &funcVec, const double *x)
 init the solver with function list and initial values
 
int Iterate () override
 perform an iteration
 
const std::string & Name () const override
 return name
 
GSLMultiRootDerivSolver & operator= (const GSLMultiRootDerivSolver &rhs)=delete
 
GSLMultiRootDerivSolver & operator= (GSLMultiRootDerivSolver &&rhs)=delete
 
int SetSolver (const std::vector< ROOT::Math::IMultiGenFunction * > &funcVec, const double *x) override
 set the solver parameters for the case of derivative
 
int TestDelta (double absTol, double relTol) const
 test using abs and relative tolerance |dx| < absTol + relTol*|x| for every component
 
int TestResidual (double absTol) const
 test using abs tolerance Sum |f|_i < absTol
 
const double * X () const
 solution values at the current iteration
 

Private Attributes

GSLMultiRootDerivFunctionWrapper fDerivFunctions
 
gsl_multiroot_fdfsolver * fDerivSolver
 
std::vector< ROOT::Math::IMultiGradFunction * > fGradFuncVec
 
std::string fName
 
gsl_vector * fVec
 

#include </__w/root/root/math/mathmore/src/GSLMultiRootSolver.h>

Inheritance diagram for ROOT::Math::GSLMultiRootDerivSolver:
[legend]

Constructor & Destructor Documentation

◆ GSLMultiRootDerivSolver() [1/3]

ROOT::Math::GSLMultiRootDerivSolver::GSLMultiRootDerivSolver ( const gsl_multiroot_fdfsolver_type * type,
int n )
inline

Constructor.

Definition at line 262 of file GSLMultiRootSolver.h.

◆ ~GSLMultiRootDerivSolver()

ROOT::Math::GSLMultiRootDerivSolver::~GSLMultiRootDerivSolver ( )
inlineoverride

Destructor (no operations)

Definition at line 273 of file GSLMultiRootSolver.h.

◆ GSLMultiRootDerivSolver() [2/3]

ROOT::Math::GSLMultiRootDerivSolver::GSLMultiRootDerivSolver ( const GSLMultiRootDerivSolver & )
delete

◆ GSLMultiRootDerivSolver() [3/3]

ROOT::Math::GSLMultiRootDerivSolver::GSLMultiRootDerivSolver ( GSLMultiRootDerivSolver && )
delete

Member Function Documentation

◆ CreateSolver()

void ROOT::Math::GSLMultiRootDerivSolver::CreateSolver ( const gsl_multiroot_fdfsolver_type * type,
unsigned int n )
inline

create the solver from the type and size of number of fitting points and number of parameters

Definition at line 285 of file GSLMultiRootSolver.h.

◆ Dx()

const double * ROOT::Math::GSLMultiRootBaseSolver::Dx ( ) const
inlineinherited

return function steps

Definition at line 110 of file GSLMultiRootSolver.h.

◆ FVal()

const double * ROOT::Math::GSLMultiRootBaseSolver::FVal ( ) const
inlineinherited

return function values

Definition at line 104 of file GSLMultiRootSolver.h.

◆ GetDx()

gsl_vector * ROOT::Math::GSLMultiRootDerivSolver::GetDx ( ) const
inlineoverridevirtual

return function steps

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 343 of file GSLMultiRootSolver.h.

◆ GetF()

gsl_vector * ROOT::Math::GSLMultiRootDerivSolver::GetF ( ) const
inlineoverridevirtual

return function values

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 337 of file GSLMultiRootSolver.h.

◆ GetRoot()

gsl_vector * ROOT::Math::GSLMultiRootDerivSolver::GetRoot ( ) const
inlineoverridevirtual

solution values at the current iteration

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 331 of file GSLMultiRootSolver.h.

◆ InitSolver()

bool ROOT::Math::GSLMultiRootBaseSolver::InitSolver ( const std::vector< ROOT::Math::IMultiGenFunction * > & funcVec,
const double * x )
inlineinherited

init the solver with function list and initial values

Definition at line 71 of file GSLMultiRootSolver.h.

◆ Iterate()

int ROOT::Math::GSLMultiRootDerivSolver::Iterate ( )
inlineoverridevirtual

perform an iteration

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 325 of file GSLMultiRootSolver.h.

◆ Name()

const std::string & ROOT::Math::GSLMultiRootDerivSolver::Name ( ) const
inlineoverridevirtual

return name

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 321 of file GSLMultiRootSolver.h.

◆ operator=() [1/2]

GSLMultiRootDerivSolver & ROOT::Math::GSLMultiRootDerivSolver::operator= ( const GSLMultiRootDerivSolver & rhs)
delete

◆ operator=() [2/2]

GSLMultiRootDerivSolver & ROOT::Math::GSLMultiRootDerivSolver::operator= ( GSLMultiRootDerivSolver && rhs)
delete

◆ SetSolver()

int ROOT::Math::GSLMultiRootDerivSolver::SetSolver ( const std::vector< ROOT::Math::IMultiGenFunction * > & funcVec,
const double * x )
inlineoverridevirtual

set the solver parameters for the case of derivative

Implements ROOT::Math::GSLMultiRootBaseSolver.

Definition at line 296 of file GSLMultiRootSolver.h.

◆ TestDelta()

int ROOT::Math::GSLMultiRootBaseSolver::TestDelta ( double absTol,
double relTol ) const
inlineinherited

test using abs and relative tolerance |dx| < absTol + relTol*|x| for every component

Definition at line 117 of file GSLMultiRootSolver.h.

◆ TestResidual()

int ROOT::Math::GSLMultiRootBaseSolver::TestResidual ( double absTol) const
inlineinherited

test using abs tolerance Sum |f|_i < absTol

Definition at line 126 of file GSLMultiRootSolver.h.

◆ X()

const double * ROOT::Math::GSLMultiRootBaseSolver::X ( ) const
inlineinherited

solution values at the current iteration

Definition at line 98 of file GSLMultiRootSolver.h.

Member Data Documentation

◆ fDerivFunctions

GSLMultiRootDerivFunctionWrapper ROOT::Math::GSLMultiRootDerivSolver::fDerivFunctions
private

Definition at line 352 of file GSLMultiRootSolver.h.

◆ fDerivSolver

gsl_multiroot_fdfsolver* ROOT::Math::GSLMultiRootDerivSolver::fDerivSolver
private

Definition at line 353 of file GSLMultiRootSolver.h.

◆ fGradFuncVec

std::vector<ROOT::Math::IMultiGradFunction*> ROOT::Math::GSLMultiRootDerivSolver::fGradFuncVec
private

Definition at line 356 of file GSLMultiRootSolver.h.

◆ fName

std::string ROOT::Math::GSLMultiRootDerivSolver::fName
private

Definition at line 357 of file GSLMultiRootSolver.h.

◆ fVec

gsl_vector* ROOT::Math::GSLMultiRootDerivSolver::fVec
mutableprivate

Definition at line 355 of file GSLMultiRootSolver.h.

  • math/mathmore/src/GSLMultiRootSolver.h