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ClpConstraintQuadratic Class Reference

Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

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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 .
ClpConstraintQuadraticoperator= (const ClpConstraintQuadratic &rhs)
 Assignment operator.
virtual ~ClpConstraintQuadratic ()
 Destructor.
virtual ClpConstraintclone () 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.
- 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.
 ClpConstraint ()
 Default Constructor.
 ClpConstraint (const ClpConstraint &)
 Copy constructor.
ClpConstraintoperator= (const ClpConstraint &rhs)
 Assignment operator.
virtual ~ClpConstraint ()
 Destructor.
int type ()
 Returns type, 0 linear, 1 nonlinear.
int rowNumber () const
 Row number (-1 is objective)
double functionValue () const
 Stored constraint function value.
double offset () const
 Constraint offset.
virtual void newXValues ()
 Say we have new primal solution - so may need to recompute.

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.

Additional Inherited Members

- Protected Attributes inherited from ClpConstraint
double * lastGradient_
 Gradient at last evaluation.
double functionValue_
 Value of non-linear part of constraint.
double offset_
 Value of offset for constraint.
int type_
 Type of constraint - linear is 1.
int rowNumber_
 Row number (-1 is objective)

Detailed Description

Quadratic Constraint Class.

Definition at line 15 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.

virtual void ClpConstraintQuadratic::deleteSome ( int  numberToDelete,
const int *  which 
)
virtual

Delete columns in constraint.

Implements ClpConstraint.

virtual void ClpConstraintQuadratic::reallyScale ( const double *  columnScale)
virtual

Scale constraint.

Implements ClpConstraint.

virtual int ClpConstraintQuadratic::markNonlinear ( char *  which) const
virtual

Given a zeroed array sets nonquadratic columns to 1.

Returns number of nonquadratic columns

Implements ClpConstraint.

virtual int ClpConstraintQuadratic::markNonzero ( char *  which) const
virtual

Given a zeroed array sets possible nonzero coefficients to 1.

Returns number of nonzeros

Implements ClpConstraint.

ClpConstraintQuadratic& ClpConstraintQuadratic::operator= ( const ClpConstraintQuadratic rhs)

Assignment operator.

virtual ClpConstraint* ClpConstraintQuadratic::clone ( ) const
virtual

Clone.

Implements ClpConstraint.

virtual int ClpConstraintQuadratic::numberCoefficients ( ) const
virtual

Number of coefficients.

Implements ClpConstraint.

int ClpConstraintQuadratic::numberColumns ( ) const
inline

Number of columns in constraint.

Definition at line 81 of file ClpConstraintQuadratic.hpp.

CoinBigIndex* ClpConstraintQuadratic::start ( ) const
inline

Column starts.

Definition at line 85 of file ClpConstraintQuadratic.hpp.

const int* ClpConstraintQuadratic::column ( ) const
inline

Columns.

Definition at line 89 of file ClpConstraintQuadratic.hpp.

const double* ClpConstraintQuadratic::coefficient ( ) const
inline

Coefficients.

Definition at line 93 of file ClpConstraintQuadratic.hpp.

Member Data Documentation

CoinBigIndex* ClpConstraintQuadratic::start_
private

Column (if -1 then linear coefficient)

Definition at line 103 of file ClpConstraintQuadratic.hpp.

int* ClpConstraintQuadratic::column_
private

Column (if -1 then linear coefficient)

Definition at line 105 of file ClpConstraintQuadratic.hpp.

double* ClpConstraintQuadratic::coefficient_
private

Coefficients.

Definition at line 107 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberColumns_
private

Useful to have number of columns about.

Definition at line 109 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberCoefficients_
private

Number of coefficients in gradient.

Definition at line 111 of file ClpConstraintQuadratic.hpp.

int ClpConstraintQuadratic::numberQuadraticColumns_
private

Number of quadratic columns.

Definition at line 113 of file ClpConstraintQuadratic.hpp.


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