Description

To integrate a real function of a real variable.

Definition at line 28 of file IntegratorGK.h.

Public Member Functions
	RealIntegrator ()

	~RealIntegrator ()

double	integrate (const std::function< double(double)> &f, double lmin, double lmax)

Static Private Member Functions
static double	m_Cfunction (double x, void *p)

Private Attributes
gsl_function	m_gsl_f

gsl_integration_workspace *	m_workspace

Constructor & Destructor Documentation

◆ RealIntegrator()

RealIntegrator::RealIntegrator ( )

Definition at line 17 of file IntegratorGK.cpp.

     : m_gsl_f{m_Cfunction, nullptr}
     , m_workspace{gsl_integration_workspace_alloc(200)}
 {
 }

◆ ~RealIntegrator()

RealIntegrator::~RealIntegrator ( )

Definition at line 23 of file IntegratorGK.cpp.

 {
     gsl_integration_workspace_free(m_workspace);
 }

References m_workspace.

Member Function Documentation

◆ integrate()

double RealIntegrator::integrate	(	const std::function< double(double)> &	f,
		double	lmin,
		double	lmax
	)

Definition at line 28 of file IntegratorGK.cpp.

 {
     m_gsl_f.params = (void*)&f;
     double result, error;
     gsl_integration_qag(&m_gsl_f, lmin, lmax, 1e-9, 1e-7, 200, 3, m_workspace, &result, &error);
     // TODO check error
     return result;
 }

References m_gsl_f, and m_workspace.

Referenced by Interference2DLattice::iff_without_dw(), Interference2DParaCrystal::iff_without_dw(), InterferenceFinite2DLattice::iff_without_dw(), InterferenceHardDisk::iff_without_dw(), ComplexIntegrator::integrate(), MisesFisherGaussPeakShape::peakDistribution(), MisesGaussPeakShape::peakDistribution(), Profile2DCone::standardizedFT2D(), and Interference2DSuperLattice::structureFactor().

◆ m_Cfunction()

static double RealIntegrator::m_Cfunction	(	double	x,
		void *	p
	)

inlinestaticprivate

Definition at line 35 of file IntegratorGK.h.

     {
         return (*(const std::function<double(double)>*)(p))(x);
     };

Member Data Documentation

◆ m_gsl_f

gsl_function RealIntegrator::m_gsl_f

private

Definition at line 39 of file IntegratorGK.h.

Referenced by integrate().

◆ m_workspace

gsl_integration_workspace* RealIntegrator::m_workspace

private

Definition at line 40 of file IntegratorGK.h.

Referenced by ~RealIntegrator(), and integrate().

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

/home/build/builds/o5h8MZZm/0/mlz/bornagain/Base/Math/IntegratorGK.h
/home/build/builds/o5h8MZZm/0/mlz/bornagain/Base/Math/IntegratorGK.cpp