#include <geant4/tree/geant4-10.6-release/source/geometry/magneticfield/include/G4BulirschStoer.hh>

Collaboration diagram for G4BulirschStoer:

Public Types
enum	step_result

Public Member Functions
	G4BulirschStoer (G4EquationOfMotion *equation, G4int nvar, G4double eps_rel, G4double max_dt=DBL_MAX)

void	set_max_dt (G4double max_dt)

void	set_max_relative_error (G4double eps_rel)

step_result	try_step (const G4double in[], const G4double dxdt[], G4double &t, G4double out[], G4double &dt)

void	reset ()

void	SetEquationOfMotion (G4EquationOfMotion *equation)

G4EquationOfMotion *	GetEquationOfMotion ()

G4int	GetNumberOfVariables () const

Private Member Functions
void	extrapolate (size_t k, G4double xest[])

G4double	calc_h_opt (G4double h, G4double error, size_t k) const

G4bool	set_k_opt (size_t k, G4double &dt)

G4bool	in_convergence_window (G4int k) const

G4bool	should_reject (G4double error, G4int k) const

Private Attributes
G4int	fnvar

G4double	m_eps_rel

G4ModifiedMidpoint	m_midpoint

G4bool	m_last_step_rejected

G4bool	m_first

G4double	m_dt_last

G4double	m_max_dt

G4int	m_current_k_opt

G4double	m_err [G4FieldTrack::ncompSVEC]

G4int	m_interval_sequence [m_k_max+1]

G4double	m_coeff [m_k_max+1][m_k_max]

G4int	m_cost [m_k_max+1]

G4double	m_table [m_k_max][G4FieldTrack::ncompSVEC]

G4double	h_opt [m_k_max+1]

G4double	work [m_k_max+1]

Static Private Attributes
static const G4int	m_k_max = 8

Detailed Description

Definition at line 43 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 43 of file G4BulirschStoer.hh

Member Enumeration Documentation

enum G4BulirschStoer::step_result

Definition at line 47 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 47 of file G4BulirschStoer.hh

Constructor & Destructor Documentation

G4BulirschStoer::G4BulirschStoer	(	G4EquationOfMotion *	equation,
		G4int	nvar,
		G4double	eps_rel,
		G4double	max_dt = `DBL_MAX`
	)

Definition at line 47 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 47 of file G4BulirschStoer.cc

References k, m_coeff, m_cost, m_current_k_opt, m_interval_sequence, m_k_max, and r.

Member Function Documentation

G4double G4BulirschStoer::calc_h_opt	(	G4double	h,
		G4double	error,
		size_t	k
	)		const

private

Definition at line 259 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 259 of file G4BulirschStoer.cc

References fac, max, and min.

Referenced by try_step().

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void G4BulirschStoer::extrapolate	(	size_t	k,
		G4double	xest[]
	)

private

Definition at line 239 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 239 of file G4BulirschStoer.cc

References fnvar, k, m_coeff, and m_table.

Referenced by try_step().

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G4EquationOfMotion* G4BulirschStoer::GetEquationOfMotion ( )

inline

G4int G4BulirschStoer::GetNumberOfVariables ( ) const

inline

G4bool G4BulirschStoer::in_convergence_window ( G4int k ) const

private

Definition at line 312 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 312 of file G4BulirschStoer.cc

References m_current_k_opt, and m_last_step_rejected.

void G4BulirschStoer::reset ( )

Definition at line 233 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 233 of file G4BulirschStoer.cc

References m_first, and m_last_step_rejected.

Referenced by try_step().

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G4bool G4BulirschStoer::set_k_opt	(	size_t	k,
		G4double &	dt
	)

private

Definition at line 282 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 282 of file G4BulirschStoer.cc

References h_opt, k, m_cost, m_current_k_opt, m_k_max, m_last_step_rejected, and work.

void G4BulirschStoer::set_max_dt ( G4double max_dt )

inline

void G4BulirschStoer::set_max_relative_error ( G4double eps_rel )

inline

void G4BulirschStoer::SetEquationOfMotion ( G4EquationOfMotion * equation )

inline

G4bool G4BulirschStoer::should_reject	(	G4double	error,
		G4int	k
	)		const

private

Definition at line 322 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 322 of file G4BulirschStoer.cc

References d, e, e2, m_current_k_opt, and m_interval_sequence.

Referenced by try_step().

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G4BulirschStoer::step_result G4BulirschStoer::try_step	(	const G4double	in[],
		const G4double	dxdt[],
		G4double &	t,
		G4double	out[],
		G4double &	dt
	)

Definition at line 84 of file G4BulirschStoer.cc.

View newest version in sPHENIX GitHub at line 84 of file G4BulirschStoer.cc

References calc_h_opt(), G4ModifiedMidpoint::DoStep(), error, extrapolate(), fnvar, h_opt, k, m_cost, m_current_k_opt, m_dt_last, m_eps_rel, m_err, m_first, m_interval_sequence, m_k_max, m_last_step_rejected, m_max_dt, m_midpoint, m_table, max, min, field_utils::relativeError(), reset(), G4ModifiedMidpoint::SetSteps(), should_reject(), and work.

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Member Data Documentation

G4int G4BulirschStoer::fnvar

private

Definition at line 85 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 85 of file G4BulirschStoer.hh

Referenced by extrapolate(), and try_step().

G4double G4BulirschStoer::h_opt[m_k_max+1]

private

Definition at line 121 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 121 of file G4BulirschStoer.hh

Referenced by set_k_opt(), and try_step().

G4double G4BulirschStoer::m_coeff[m_k_max+1][m_k_max]

private

Definition at line 112 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 112 of file G4BulirschStoer.hh

Referenced by extrapolate(), and G4BulirschStoer().

G4int G4BulirschStoer::m_cost[m_k_max+1]

private

Definition at line 115 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 115 of file G4BulirschStoer.hh

Referenced by G4BulirschStoer(), set_k_opt(), and try_step().

G4int G4BulirschStoer::m_current_k_opt

private

Definition at line 102 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 102 of file G4BulirschStoer.hh

Referenced by G4BulirschStoer(), in_convergence_window(), set_k_opt(), should_reject(), and try_step().

G4double G4BulirschStoer::m_dt_last

private

Definition at line 96 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 96 of file G4BulirschStoer.hh

Referenced by try_step().

G4double G4BulirschStoer::m_eps_rel

private

Definition at line 88 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 88 of file G4BulirschStoer.hh

Referenced by try_step().

G4double G4BulirschStoer::m_err[G4FieldTrack::ncompSVEC]

private

Definition at line 105 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 105 of file G4BulirschStoer.hh

Referenced by try_step().

G4bool G4BulirschStoer::m_first

private

Definition at line 94 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 94 of file G4BulirschStoer.hh

Referenced by reset(), and try_step().

G4int G4BulirschStoer::m_interval_sequence[m_k_max+1]

private

Definition at line 109 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 109 of file G4BulirschStoer.hh

Referenced by G4BulirschStoer(), should_reject(), and try_step().

const G4int G4BulirschStoer::m_k_max = 8

staticprivate

Definition at line 75 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 75 of file G4BulirschStoer.hh

Referenced by G4BulirschStoer(), set_k_opt(), and try_step().

G4bool G4BulirschStoer::m_last_step_rejected

private

Definition at line 93 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 93 of file G4BulirschStoer.hh

Referenced by in_convergence_window(), reset(), set_k_opt(), and try_step().

G4double G4BulirschStoer::m_max_dt

private

Definition at line 100 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 100 of file G4BulirschStoer.hh

Referenced by try_step().

G4ModifiedMidpoint G4BulirschStoer::m_midpoint

private

Definition at line 91 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 91 of file G4BulirschStoer.hh

Referenced by try_step().

G4double G4BulirschStoer::m_table[m_k_max][G4FieldTrack::ncompSVEC]

private

Definition at line 118 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 118 of file G4BulirschStoer.hh

Referenced by extrapolate(), and try_step().

G4double G4BulirschStoer::work[m_k_max+1]

private

Definition at line 124 of file G4BulirschStoer.hh.

View newest version in sPHENIX GitHub at line 124 of file G4BulirschStoer.hh

Referenced by set_k_opt(), and try_step().

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

geant4/tree/geant4-10.6-release/source/geometry/magneticfield/include/G4BulirschStoer.hh
geant4/tree/geant4-10.6-release/source/geometry/magneticfield/src/G4BulirschStoer.cc

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation