Stores a quadratic row of the form l < c + ax + x^T Q x < u. More...

#include <BonQuadRow.hpp>

Public Member Functions
	QuadRow ()
	Default constructor.
	QuadRow (const QuadRow &other)
	Copy constructor.
QuadRow &	operator= (const QuadRow &rhs)
	Assignment operator.
	QuadRow (const QuadCut &cut)
	Constructor from a quadratic cut.
QuadRow &	operator= (const QuadCut &rhs)
	Assignment form a quadrattic &cut.
	QuadRow (const OsiRowCut &cut)
	Constructor from a linear cut.
QuadRow &	operator= (const OsiRowCut &rhs)
	Assignment form a linear &cut.
double	eval_f (const double *x, bool new_x)
	Evaluate quadratic form.
int	nnz_grad ()
	Get number of non-zeroes in the gradiant.
void	gradiant_struct (const int nnz, int *indices, bool offset)
	Get structure of gradiant.
void	eval_grad (const int nnz, const double x, bool new_x, double values)
	Evaluate gradiant of quadratic form.
int	nnz_hessian ()
	number of non-zeroes in hessian.
bool	isLinear ()
	Says if the constraint is linear.
void	eval_hessian (double lambda, double *values)
	Return hessian value (i.e.
void	add_to_hessian (AdjustableMat &H, bool offset)
	Add row to a bigger hessian.
void	remove_from_hessian (AdjustableMat &H)
	Remove row from a bigger hessian.
void	print ()
	Print quadratic constraint.

Detailed Description

Stores a quadratic row of the form l < c + ax + x^T Q x < u.

Does computation usefull for nlp-solver. It can only be initialized from a QuadCut.

Definition at line 32 of file BonQuadRow.hpp.

Constructor & Destructor Documentation

◆ QuadRow() [1/4]

Bonmin::QuadRow::QuadRow ( )

Default constructor.

◆ QuadRow() [2/4]

Bonmin::QuadRow::QuadRow ( const QuadRow & other )

Copy constructor.

◆ QuadRow() [3/4]

Bonmin::QuadRow::QuadRow ( const QuadCut & cut )

Constructor from a quadratic cut.

◆ QuadRow() [4/4]

Bonmin::QuadRow::QuadRow ( const OsiRowCut & cut )

Constructor from a linear cut.

Member Function Documentation

◆ operator=() [1/3]

QuadRow & Bonmin::QuadRow::operator= ( const QuadRow & rhs )

Assignment operator.

◆ operator=() [2/3]

QuadRow & Bonmin::QuadRow::operator= ( const QuadCut & rhs )

Assignment form a quadrattic &cut.

◆ operator=() [3/3]

QuadRow & Bonmin::QuadRow::operator= ( const OsiRowCut & rhs )

Assignment form a linear &cut.

◆ eval_f()

double Bonmin::QuadRow::eval_f	(	const double *	x,
		bool	new_x )

Evaluate quadratic form.

◆ nnz_grad()

int Bonmin::QuadRow::nnz_grad ( )

Get number of non-zeroes in the gradiant.

◆ gradiant_struct()

void Bonmin::QuadRow::gradiant_struct	(	const int	nnz,
		int *	indices,
		bool	offset )

Get structure of gradiant.

◆ eval_grad()

void Bonmin::QuadRow::eval_grad	(	const int	nnz,
		const double *	x,
		bool	new_x,
		double *	values )

Evaluate gradiant of quadratic form.

◆ nnz_hessian()

int Bonmin::QuadRow::nnz_hessian ( )

inline

number of non-zeroes in hessian.

Definition at line 66 of file BonQuadRow.hpp.

◆ isLinear()

bool Bonmin::QuadRow::isLinear ( )

inline

Says if the constraint is linear.

Definition at line 70 of file BonQuadRow.hpp.

◆ eval_hessian()

void Bonmin::QuadRow::eval_hessian	(	double	lambda,
		double *	values )

Return hessian value (i.e.

Q_).

◆ add_to_hessian()

void Bonmin::QuadRow::add_to_hessian	(	AdjustableMat &	H,
		bool	offset )

Add row to a bigger hessian.

◆ remove_from_hessian()

void Bonmin::QuadRow::remove_from_hessian ( AdjustableMat & H )

Remove row from a bigger hessian.

◆ print()

void Bonmin::QuadRow::print ( )

Print quadratic constraint.

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

/builddir/build/BUILD/coin-or-Bonmin-1.8.9-build/Bonmin-releases-1.8.9/Bonmin/src/Algorithms/QuadCuts/BonQuadRow.hpp

Public Member Functions