ClpConstraintQuadratic Class Reference

Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

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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 .
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.

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 15 of file ClpConstraintQuadratic.hpp.


Constructor & Destructor Documentation

Default Constructor.

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

Constructor from quadratic.

Copy constructor .

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.

Column (if -1 then linear coefficient)

Definition at line 105 of file ClpConstraintQuadratic.hpp.

Coefficients.

Definition at line 107 of file ClpConstraintQuadratic.hpp.

Useful to have number of columns about.

Definition at line 109 of file ClpConstraintQuadratic.hpp.

Number of coefficients in gradient.

Definition at line 111 of file ClpConstraintQuadratic.hpp.

Number of quadratic columns.

Definition at line 113 of file ClpConstraintQuadratic.hpp.


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