ilog.concert

Interface IloQuadNumExpr

All Superinterfaces:

IloNumExpr

All Known Subinterfaces:

IloLQNumExpr

public interface IloQuadNumExpr
extends IloNumExpr

A quadratic numeric 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(IloQuadNumExpr qexpr) Adds all terms found in qexpr to the invoking object.
void	addTerm(double coef, IloNumVar var1, IloNumVar var2) Adds the new term coef * var1 * var2 to the invoking quadratic expression.
void	addTerms(double[] coef, IloNumVar[] var1, IloNumVar[] var2) Adds the terms sum_i (coef[i] * var1[i] * var2[i]) to the invoking quadratic expression.
void	addTerms(double[] coef, IloNumVar[] var1, IloNumVar[] 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.
IloQuadNumExprIterator	quadIterator() Returns an iterator over the quadratic terms in the invoking quadratic expression.
void	remove(IloNumVar var) Removes all terms that use var from the invoking quadratic expression.
void	remove(IloNumVar[] var) Removes all terms that use a variable in the specified array from the invoking quadratic expression.
void	remove(IloNumVar[] 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(IloQuadNumExpr qexpr)
         throws IloException

Adds all terms found in qexpr to the invoking object.

Throws:

IloException

addTerm

void addTerm(double coef,
           IloNumVar var1,
           IloNumVar var2)
             throws IloException

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

Throws:

IloException

addTerms

void addTerms(double[] coef,
            IloNumVar[] var1,
            IloNumVar[] var2)
              throws IloException

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

Throws:

IloException

addTerms

void addTerms(double[] coef,
            IloNumVar[] var1,
            IloNumVar[] 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

IloQuadNumExprIterator quadIterator()
                                    throws IloException

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

Throws:

IloException

remove

void remove(IloNumVar var)
            throws IloException

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

Throws:

IloException

remove

void remove(IloNumVar[] var)
            throws IloException

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

Throws:

IloException

remove

void remove(IloNumVar[] 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