ilog.concert

Interface IloQuadIntExpr

All Superinterfaces:

IloIntExpr, IloNumExpr

All Known Subinterfaces:

IloLQIntExpr

public interface IloQuadIntExpr
extends IloIntExpr

A quadratic expression.

A quadratic expression represents a sum of quadratic terms of the form qexp = sum q_ij * x_i * x_j.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(IloQuadIntExpr qexpr) Adds all terms found in the specified quadratic expression to the invoking object.
void	addTerm(int coef, IloIntVar var1, IloIntVar var2) Adds the new term coef * var1 * var2 to the invoking quadratic expression.
void	addTerms(int[] coef, IloIntVar[] var1, IloIntVar[] var2) Adds the terms specified by sum_i (coef[i] * var1[i] * var2[i]) to the invoking quadratic expression.
void	addTerms(int[] coef, IloIntVar[] var1, IloIntVar[] var2, int start, int num) Adds the terms specified by sum_i (coef[i] * var1[i] * var2[i]) to the invoking quadratic expression, for the indices i from start to start + num-1.
void	clear() Removes all quadratic terms from the invoking object.
IloQuadIntExprIterator	quadIterator() Returns an iterator over the quadratic terms in the invoking quadratic expression.
void	remove(IloIntVar var) Removes all terms that use var from the invoking quadratic expression.
void	remove(IloIntVar[] var) Removes all terms that use a variable of the specified array from the invoking quadratic expression.
void	remove(IloIntVar[] var, int start, int num) Removes all terms that use a variable var[i] from the invoking quadratic expression, for the indices i from start to start + num-1.

Method Detail

add

void add(IloQuadIntExpr qexpr)
         throws IloException

Adds all terms found in the specified quadratic expression to the invoking object.

Throws:

IloException

addTerm

void addTerm(int coef,
           IloIntVar var1,
           IloIntVar var2)
             throws IloException

Adds the new term coef * var1 * var2 to the invoking quadratic expression.

Throws:

IloException

addTerms

void addTerms(int[] coef,
            IloIntVar[] var1,
            IloIntVar[] var2)
              throws IloException

Adds the terms specified by sum_i (coef[i] * var1[i] * var2[i]) to the invoking quadratic expression.

Throws:

IloException

addTerms

void addTerms(int[] coef,
            IloIntVar[] var1,
            IloIntVar[] var2,
            int start,
            int num)
              throws IloException

Adds the terms specified by sum_i (coef[i] * var1[i] * var2[i]) to the invoking quadratic expression, for the indices i from start to start + num-1.

Throws:

IloException

clear

void clear()
           throws IloException

Removes all quadratic terms from the invoking object.

Throws:

IloException

quadIterator

IloQuadIntExprIterator quadIterator()
                                    throws IloException

Returns an iterator over the quadratic terms in the invoking quadratic expression.

Throws:

IloException

remove

void remove(IloIntVar var)
            throws IloException

Removes all terms that use var from the invoking quadratic expression.

Throws:

IloException

remove

void remove(IloIntVar[] var)
            throws IloException

Removes all terms that use a variable of the specified array from the invoking quadratic expression.

Throws:

IloException

remove

void remove(IloIntVar[] var,
          int start,
          int num)
            throws IloException

Removes all terms that use a variable var[i] from the invoking quadratic expression, for the indices i from start to start + num-1.

Throws:

IloException