ClpConstraintQuadratic Class Reference

Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

Inheritance diagram for ClpConstraintQuadratic:

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Collaboration diagram for ClpConstraintQuadratic:

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List of all members.

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.
virtual void	resize (int newNumberColumns)
	Resize constraint.
virtual void	deleteSome (int numberToDelete, const int *which)
	Delete columns in constraint.
virtual void	reallyScale (const double *columnScale)
	Scale constraint.
virtual int	markNonlinear (char *which) const
	Given a zeroed array sets nonquadratic columns to 1.
virtual int	markNonzero (char *which) const
	Given a zeroed array sets possible nonzero coefficients to 1.
Constructors and destructors

	ClpConstraintQuadratic ()
	Default Constructor.
	ClpConstraintQuadratic (int row, int numberQuadraticColumns, int numberColumns, const CoinBigIndex start, const int column, const double *element)
	Constructor from quadratic.
	ClpConstraintQuadratic (const ClpConstraintQuadratic &rhs)
	Copy constructor .
ClpConstraintQuadratic &	operator= (const ClpConstraintQuadratic &rhs)
	Assignment operator.
virtual	~ClpConstraintQuadratic ()
	Destructor.
virtual ClpConstraint *	clone () const
	Clone.
Gets and sets

virtual int	numberCoefficients () const
	Number of coefficients.
int	numberColumns () const
	Number of columns in constraint.
CoinBigIndex *	start () const
	Column starts.
const int *	column () const
	Columns.
const double *	coefficient () const
	Coefficients.
Private Attributes
Private member data
Column starts
CoinBigIndex *	start_
	Column (if -1 then linear coefficient).
int *	column_
	Column (if -1 then linear coefficient).
double *	coefficient_
	Coefficients.
int	numberColumns_
	Useful to have number of columns about.
int	numberCoefficients_
	Number of coefficients in gradient.
int	numberQuadraticColumns_
	Number of quadratic columns.

Detailed Description

Quadratic Constraint Class.

Definition at line 14 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.