NonlinSystem Class Reference

#include <nonlinsystem.h>

Inherited by RefNonlinSystem, and RefSystem.

Public Member Functions
void	init_nonlin ()
	Initializes the class and creates a zero initial coefficient vector.
	NonlinSystem (WeakForm wf, Solver solver)
	NonlinSystem (WeakForm *wf)
	NonlinSystem (WeakForm wf, Solver solver, Space *s)
	NonlinSystem (WeakForm wf, Space s)
	NonlinSystem (WeakForm wf, Solver solver, int n,...)
	NonlinSystem (WeakForm *wf, int n,...)
virtual void	free ()
	Frees the memory for the RHS, Dir and Vec vectors, and solver data,.
void	set_alpha (double alpha)
	Adjusts the iteration coefficient. The default value for alpha is 1.
void	assemble (bool rhsonly=false)
	Assembles the Jacobian matrix and the residual vector (as opposed to LibSystem::assemble() that constructs a stiffness matrix and load vector).
bool	solve (int n,...)
	Performs one step of the Newton's method for an arbitrary number of equations, stores the result in the given Solutions.
bool	solve (Solution *sln)
bool	solve_newton (Solution u_prev, double newton_tol, int newton_max_iter, Filter f1=NULL, Filter f2=NULL, Filter f3=NULL)
	Performs complete Newton's loop for one equation.
bool	solve_newton (Solution u_prev_1, Solution u_prev_2, double newton_tol, int newton_max_iter, Filter f1=NULL, Filter f2=NULL, Filter *f3=NULL)
	Performs complete Newton's loop for two equations.
bool	solve_newton (Solution u_prev_1, Solution u_prev_2, Solution u_prev_3, double newton_tol, int newton_max_iter, Filter f1=NULL, Filter f2=NULL, Filter f3=NULL)
	Performs complete Newton's loop for three equations.
double	get_residual_l2_norm () const
	returns the L2-norm of the residual vector
double	get_residual_l1_norm () const
	returns the L1-norm of the residual vector
double	get_residual_max_norm () const
	returns the L_inf-norm of the residual vector
virtual bool	is_linear ()
	Helps to determine if linear or nonlinear class instance is used similar to Java instanceof functionality.
Protected Attributes
double	alpha
double	res_l2
double	res_l1
double	res_max
Friends
class	RefNonlinSystem

Constructor & Destructor Documentation

NonlinSystem::NonlinSystem	(	WeakForm *	wf,
		Solver *	solver
	)

NonlinSystem::NonlinSystem ( WeakForm * wf )

NonlinSystem::NonlinSystem	(	WeakForm *	wf,
		Solver *	solver,
		Space *	s
	)

NonlinSystem::NonlinSystem	(	WeakForm *	wf,
		Space *	s
	)

NonlinSystem::NonlinSystem	(	WeakForm *	wf,
		Solver *	solver,
		int	n,
			...
	)

NonlinSystem::NonlinSystem	(	WeakForm *	wf,
		int	n,
			...
	)

Member Function Documentation

void NonlinSystem::assemble ( bool rhsonly = false ) [virtual]

Assembles the Jacobian matrix and the residual vector (as opposed to LibSystem::assemble() that constructs a stiffness matrix and load vector).

Reimplemented from LinSystem.

Reimplemented in RefSystem.

void NonlinSystem::free ( ) [virtual]

Frees the memory for the RHS, Dir and Vec vectors, and solver data,.

Reimplemented from LinSystem.

double NonlinSystem::get_residual_l1_norm ( ) const [inline]

returns the L1-norm of the residual vector

double NonlinSystem::get_residual_l2_norm ( ) const [inline]

returns the L2-norm of the residual vector

double NonlinSystem::get_residual_max_norm ( ) const [inline]

returns the L_inf-norm of the residual vector

void NonlinSystem::init_nonlin ( )

Initializes the class and creates a zero initial coefficient vector.

virtual bool NonlinSystem::is_linear ( ) [inline, virtual]

Helps to determine if linear or nonlinear class instance is used similar to Java instanceof functionality.

Reimplemented from LinSystem.

void NonlinSystem::set_alpha ( double alpha ) [inline]

Adjusts the iteration coefficient. The default value for alpha is 1.

bool NonlinSystem::solve ( Solution * sln )

Reimplemented from LinSystem.

bool NonlinSystem::solve	(	int	n,
			...
	)

Performs one step of the Newton's method for an arbitrary number of equations, stores the result in the given Solutions.

Reimplemented from LinSystem.

bool NonlinSystem::solve_newton	(	Solution *	u_prev_1,
		Solution *	u_prev_2,
		Solution *	u_prev_3,
		double	newton_tol,
		int	newton_max_iter,
		Filter *	f1 = `NULL`,
		Filter *	f2 = `NULL`,
		Filter *	f3 = `NULL`
	)

Performs complete Newton's loop for three equations.

bool NonlinSystem::solve_newton	(	Solution *	u_prev_1,
		Solution *	u_prev_2,
		double	newton_tol,
		int	newton_max_iter,
		Filter *	f1 = `NULL`,
		Filter *	f2 = `NULL`,
		Filter *	f3 = `NULL`
	)

Performs complete Newton's loop for two equations.

bool NonlinSystem::solve_newton	(	Solution *	u_prev,
		double	newton_tol,
		int	newton_max_iter,
		Filter *	f1 = `NULL`,
		Filter *	f2 = `NULL`,
		Filter *	f3 = `NULL`
	)

Performs complete Newton's loop for one equation.

Friends And Related Function Documentation

friend class RefNonlinSystem [friend]

Member Data Documentation

double NonlinSystem::alpha [protected]

double NonlinSystem::res_l1 [protected]

double NonlinSystem::res_l2 [protected]

double NonlinSystem::res_max [protected]

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

/var/www2/hermes2d/hermes2d/src/nonlinsystem.h
/var/www2/hermes2d/hermes2d/src/nonlinsystem.cpp

NonlinSystem Class Reference

Public Member Functions

Protected Attributes

Friends

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation