Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

Inheritance diagram for ClpConstraintQuadratic:

Collaboration diagram for ClpConstraintQuadratic:

Public Member Functions
Stuff
virtual int	gradient (const ClpSimplex model, const double solution, double *gradient, double &functionValue, double &offset, bool useScaling=false, bool refresh=true) const
	Fills gradient. More...

virtual void	resize (int newNumberColumns)
	Resize constraint. More...

virtual void	deleteSome (int numberToDelete, const int *which)
	Delete columns in constraint. More...

virtual void	reallyScale (const double *columnScale)
	Scale constraint. More...

virtual int	markNonlinear (char *which) const
	Given a zeroed array sets nonquadratic columns to 1. More...

virtual int	markNonzero (char *which) const
	Given a zeroed array sets possible nonzero coefficients to 1. More...

Constructors and destructors
	ClpConstraintQuadratic ()
	Default Constructor. More...

	ClpConstraintQuadratic (int row, int numberQuadraticColumns, int numberColumns, const CoinBigIndex start, const int column, const double *element)
	Constructor from quadratic. More...

	ClpConstraintQuadratic (const ClpConstraintQuadratic &rhs)
	Copy constructor . More...

ClpConstraintQuadratic &	operator= (const ClpConstraintQuadratic &rhs)
	Assignment operator. More...

virtual	~ClpConstraintQuadratic ()
	Destructor. More...

virtual ClpConstraint *	clone () const
	Clone. More...

Gets and sets
virtual int	numberCoefficients () const
	Number of coefficients. More...

int	numberColumns () const
	Number of columns in constraint. More...

CoinBigIndex *	start () const
	Column starts. More...

const int *	column () const
	Columns. More...

const double *	coefficient () const
	Coefficients. More...

Public Member Functions inherited from ClpConstraint
virtual double	functionValue (const ClpSimplex model, const double solution, bool useScaling=false, bool refresh=true) const
	Constraint function value. More...

	ClpConstraint ()
	Default Constructor. More...

	ClpConstraint (const ClpConstraint &)
	Copy constructor. More...

ClpConstraint &	operator= (const ClpConstraint &rhs)
	Assignment operator. More...

virtual	~ClpConstraint ()
	Destructor. More...

int	type ()
	Returns type, 0 linear, 1 nonlinear. More...

int	rowNumber () const
	Row number (-1 is objective) More...

double	functionValue () const
	Stored constraint function value. More...

double	offset () const
	Constraint offset. More...

virtual void	newXValues ()
	Say we have new primal solution - so may need to recompute. More...

Private Attributes
Private member data
Column starts
CoinBigIndex *	start_
	Column (if -1 then linear coefficient) More...

int *	column_
	Column (if -1 then linear coefficient) More...

double *	coefficient_
	Coefficients. More...

int	numberColumns_
	Useful to have number of columns about. More...

int	numberCoefficients_
	Number of coefficients in gradient. More...

int	numberQuadraticColumns_
	Number of quadratic columns. More...

Additional Inherited Members
Protected Attributes inherited from ClpConstraint
double *	lastGradient_
	Gradient at last evaluation. More...

double	functionValue_
	Value of non-linear part of constraint. More...

double	offset_
	Value of offset for constraint. More...

int	type_
	Type of constraint - linear is 1. More...

int	rowNumber_
	Row number (-1 is objective) More...

Detailed Description

Quadratic Constraint Class.

Definition at line 17 of file ClpConstraintQuadratic.hpp.

Constructor & Destructor Documentation

ClpConstraintQuadratic::ClpConstraintQuadratic ( )

Default Constructor.

ClpConstraintQuadratic::ClpConstraintQuadratic	(	int	row,
		int	numberQuadraticColumns,
		int	numberColumns,
		const CoinBigIndex *	start,
		const int *	column,
		const double *	element
	)

Constructor from quadratic.

ClpConstraintQuadratic::ClpConstraintQuadratic ( const ClpConstraintQuadratic & rhs )

Copy constructor .

virtual ClpConstraintQuadratic::~ClpConstraintQuadratic ( )

virtual

Destructor.

Member Function Documentation

virtual int ClpConstraintQuadratic::gradient	(	const ClpSimplex *	model,
		const double *	solution,
		double *	gradient,
		double &	functionValue,
		double &	offset,
		bool	useScaling = `false`,
		bool	refresh = `true`
	)		const

virtual

Fills gradient.

If Quadratic then solution may be NULL, also returns true value of function and offset so we can use x not deltaX in constraint If refresh is false then uses last solution Uses model for scaling Returns non-zero if gradient udefined at current solution

Implements ClpConstraint.

virtual void ClpConstraintQuadratic::resize ( int newNumberColumns )

virtual

Resize constraint.

Implements ClpConstraint.