QuadExpression

java.lang.Object
- com.dashoptimization.objects.Expression
- - com.dashoptimization.objects.AbstractExpression
  - - com.dashoptimization.objects.QuadExpression

Direct Known Subclasses:

QuadTermList, QuadTermMap
```
public abstract class QuadExpression
extends AbstractExpression
```
A quadratic expression that represents its data by a collection of terms. This is an abstract base class that is implement by different subclasses which use different data types to actually store the various terms in the expression.

Since:

43.00

Constructor Summary

Constructor Description

QuadExpression()

Method Summary

Modifier and Type	Method	Description
`abstract QuadExpression`	`addConstant(double c)`	Add a value to the constant term of this expression.
`abstract QuadExpression`	`addTerm(double coefficient, Variable variable)`	Add a term to this expression.
`abstract QuadExpression`	`addTerm(double coefficient, Variable variable1, Variable variable2)`	Add a term to this expression.
`QuadExpression`	`addTerm(LinTerm term)`	Add `term` to this expression.
`QuadExpression`	`addTerm(QuadTerm term)`	Add `term` to this expression.
`abstract QuadExpression`	`addTerm(Variable x)`	Add term `1.0*x` to this expression.
`abstract QuadExpression`	`addTerm(Variable variable, double coefficient)`	Add a term to this expression.
`abstract QuadExpression`	`addTerm(Variable x1, Variable x2)`	Add term `1.0x1x2` to this expression.
`abstract QuadExpression`	`addTerm(Variable variable1, Variable variable2, double coefficient)`	Add a term to this expression.
`abstract QuadExpression`	`addTerms(LinExpression expr)`	Add another linear expression to this expression.
`abstract QuadExpression`	`addTerms(LinExpression expr, double factor)`	Add another linear expression to this expression.
`abstract QuadExpression`	`addTerms(QuadExpression expr)`	Add another quadratic expression to this expression.
`abstract QuadExpression`	`addTerms(QuadExpression expr, double factor)`	Add another quadratic expression to this expression.
`QuadExpression`	`addTerms(Variable[] variables, double[] coefficients)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(Variable[] variables, double[] coefficients, int offset, int count)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(Variable[] variables1, Variable[] variables2, double[] coefficients)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(Variable[] variables1, Variable[] variables2, double[] coefficients, int offset, int count)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(java.lang.Iterable<Variable> variables1, java.lang.Iterable<Variable> variables2, java.lang.Iterable<java.lang.Double> coefficients)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(java.lang.Iterable<Variable> variables, java.lang.Iterable<java.lang.Double> coefficients)`	Add multiple terms to this expression.
`QuadExpression`	`addTerms(java.util.stream.Stream<Variable> variables1, java.util.stream.Stream<Variable> variables2, java.util.stream.Stream<java.lang.Double> coefficients)`	Add multiple quadratic terms to this expression.
`QuadExpression`	`addTerms(java.util.stream.Stream<Variable> variables, java.util.stream.Stream<java.lang.Double> coefficients)`	Add multiple linear terms to this expression.
`static QuadExpression`	`create()`	Create a new empty quadratic expression.
`static QuadExpression`	`create(double constant)`	Create a new quadratic expression with the specified constant term.
`static QuadExpression`	`create(double constant, int reserve)`	Create a quadratic expression with the specified constant term and prepare for adding the specified number of terms.
`abstract QuadExpression`	`deepCopy()`	Get a deep copy of this expression.
`abstract QuadExpression`	`deepCopy(double factor)`	Get a deep copy of this expression multiplied by a constant
`abstract double`	`getConstant()`	Get the constant value in this expression.
`abstract QuadExpression`	`reset()`	Clear this expression.
`abstract QuadExpression`	`setConstant(double c)`	Set the constant term in this expression.
`static boolean`	`setCreateLists(boolean newValue)`	Configures whether the `create()` functions should return instances of `QuadTermList` (if `newValue` is true) or `QuadTermMap` (if `newValue` is false).

Methods inherited from class com.dashoptimization.objects.AbstractExpression
eq, eq, geq, geq, in, leq, leq

Methods inherited from class com.dashoptimization.objects.Expression
div, div, evaluate, minus, minus, mul, mul, plus, plus, uminus

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - QuadExpression
```
public QuadExpression()
```
- Method Detail
  - deepCopy
```
public abstract QuadExpression deepCopy()
```
    Get a deep copy of this expression.
    
    Returns:
    
    A deep copy of this expression.
    
    Since:
    
    43.00
  - deepCopy
```
public abstract QuadExpression deepCopy(double factor)
```
    Get a deep copy of this expression multiplied by a constant
    
    Parameters:
    
    factor - Factor to scale this with.
    
    Returns:
    
    A deep copy of this expression multiplied by factor.
    
    Since:
    
    43.00
  - getConstant
```
public abstract double getConstant()
```
    Get the constant value in this expression.
    
    Returns:
    
    The constant value in this expression.
    
    Since:
    
    43.00
  - addConstant
```
public abstract QuadExpression addConstant(double c)
```
    Add a value to the constant term of this expression.
    
    Parameters:
    
    c - The constant to add.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - setConstant
```
public abstract QuadExpression setConstant(double c)
```
    Set the constant term in this expression. Any existing constant term will be overwritten.
    
    Parameters:
    
    c - New constant term for this expression
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - reset
```
public abstract QuadExpression reset()
```
    Clear this expression. Removes all terms and sets the constant to 0.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(java.util.stream.Stream<Variable> variables,
                               java.util.stream.Stream<java.lang.Double> coefficients)
```
    Add multiple linear terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables and coefficients.
    
    Parameters:
    
    variables - Variables.
    
    coefficients - Coefficients.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(java.util.stream.Stream<Variable> variables1,
                               java.util.stream.Stream<Variable> variables2,
                               java.util.stream.Stream<java.lang.Double> coefficients)
```
    Add multiple quadratic terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables1, variables2 and coefficients.
    
    Parameters:
    
    variables1 - First variables.
    
    variables2 - Second variables.
    
    coefficients - Coefficients.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(java.lang.Iterable<Variable> variables,
                               java.lang.Iterable<java.lang.Double> coefficients)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables and coefficients.
    
    Parameters:
    
    variables - Variables
    
    coefficients - Coefficients
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(java.lang.Iterable<Variable> variables1,
                               java.lang.Iterable<Variable> variables2,
                               java.lang.Iterable<java.lang.Double> coefficients)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables1, variables2 and coefficients.
    
    Parameters:
    
    variables1 - First variables
    
    variables2 - Second variables
    
    coefficients - Coefficients
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(Variable[] variables,
                               double[] coefficients)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables and coefficients.
    
    Parameters:
    
    variables - Variables
    
    coefficients - Coefficients
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(Variable[] variables1,
                               Variable[] variables2,
                               double[] coefficients)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables1, variables2 and coefficients.
    
    Parameters:
    
    variables1 - First variables
    
    variables2 - Second variables
    
    coefficients - Coefficients
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(Variable[] variables,
                               double[] coefficients,
                               int offset,
                               int count)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables and coefficients using count elements starting from offset.
    
    Parameters:
    
    variables - Variables
    
    coefficients - Coefficients
    
    offset - Offset into arrays.
    
    count - Number of elements to use from each array.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public QuadExpression addTerms(Variable[] variables1,
                               Variable[] variables2,
                               double[] coefficients,
                               int offset,
                               int count)
```
    Add multiple terms to this expression. Adds the scalar product defined by the element-wise multiplication of variables1, variables2 and coefficients using count elements starting from offset.
    
    Parameters:
    
    variables1 - First variables
    
    variables2 - Second variables
    
    coefficients - Coefficients
    
    offset - Offset into arrays.
    
    count - Number of elements to use from each array.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(Variable variable,
                                       double coefficient)
```
    Add a term to this expression. If the expression already has a coefficient for variable then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    variable - Variable.
    
    coefficient - Coefficient to add for variable.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(double coefficient,
                                       Variable variable)
```
    Add a term to this expression. If the expression already has a coefficient for variable then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    coefficient - Coefficient to add for variable.
    
    variable - Variable.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(Variable x)
```
    Add term 1.0*x to this expression. If the expression already has a coefficient for x then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    x - Variable.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public QuadExpression addTerm(LinTerm term)
```
    Add term to this expression.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    term - The term to add.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public QuadExpression addTerm(QuadTerm term)
```
    Add term to this expression.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    term - The term to add.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(Variable variable1,
                                       Variable variable2,
                                       double coefficient)
```
    Add a term to this expression. If the expression already has a coefficient for variable1*variable2 then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    variable1 - First variable.
    
    variable2 - Second variable.
    
    coefficient - Coefficient to add for variable1*variable2.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(double coefficient,
                                       Variable variable1,
                                       Variable variable2)
```
    Add a term to this expression. If the expression already has a coefficient for variable1*variable2 then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    coefficient - Coefficient to add for variable1*variable2.
    
    variable1 - First variable.
    
    variable2 - Second variable.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerm
```
public abstract QuadExpression addTerm(Variable x1,
                                       Variable x2)
```
    Add term 1.0*x1*x2 to this expression. If the expression already has a coefficient for x then the old and the new coefficients will be added.
    Examples using addTerm:
    
    Catenary.java
    
    CuttingStock.java
    
    ELS.java
    
    ELSCut.java
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    RecursiveFinancialPlanning.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    x1 - First variable.
    
    x2 - Second variable.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public abstract QuadExpression addTerms(LinExpression expr)
```
    Add another linear expression to this expression.
    
    Parameters:
    
    expr - The expression to add
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public abstract QuadExpression addTerms(QuadExpression expr)
```
    Add another quadratic expression to this expression.
    
    Parameters:
    
    expr - The expression to add
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public abstract QuadExpression addTerms(LinExpression expr,
                                        double factor)
```
    Add another linear expression to this expression.
    
    Parameters:
    
    expr - The expression to add.
    
    factor - Factor by which to multiply elements in expr before adding.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - addTerms
```
public abstract QuadExpression addTerms(QuadExpression expr,
                                        double factor)
```
    Add another quadratic expression to this expression.
    
    Parameters:
    
    expr - The expression to add.
    
    factor - Factor by which to multiply elements in expr before adding.
    
    Returns:
    
    Always returns this.
    
    Since:
    
    43.00
  - setCreateLists
```
public static boolean setCreateLists(boolean newValue)
```
    Configures whether the create() functions should return instances of QuadTermList (if newValue is true) or QuadTermMap (if newValue is false).
    
    Parameters:
    
    newValue - The new value.
    
    Returns:
    
    The old value.
    
    Since:
    
    46.00
  - create
```
public static QuadExpression create()
```
    Create a new empty quadratic expression.
    Examples using create:
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Returns:
    
    The new quadratic expression.
    
    Since:
    
    43.00
  - create
```
public static QuadExpression create(double constant)
```
    Create a new quadratic expression with the specified constant term.
    Examples using create:
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    constant - The constant term to which the expression is initialized.
    
    Returns:
    
    The new quadratic expression.
    
    Since:
    
    43.00
  - create
```
public static QuadExpression create(double constant,
                                    int reserve)
```
    Create a quadratic expression with the specified constant term and prepare for adding the specified number of terms.
    Examples using create:
    
    ELSManagedCuts.java
    
    FolioIIS.java
    
    FolioQC.java
    
    FolioQP.java
    
    Pplan.java
    
    Pplan2.java
    
    ProductionPlanning_Index.java
    
    QuadraticProgramming.java
    
    Sangraalind.java
    
    TravelingSalesPerson.java
    Parameters:
    
    constant - The constant term to which the expression is initialized.
    
    reserve - Prepare for this many terms to add.
    
    Returns:
    
    The new quadratic expression.
    
    Since:
    
    43.00

© 2001-2025 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.

Contents

Index

Glossary

Search Results

QuadExpression

Constructor Summary

Method Summary

Methods inherited from class com.dashoptimization.objects.AbstractExpression

Methods inherited from class com.dashoptimization.objects.Expression

Methods inherited from class java.lang.Object

Constructor Detail

QuadExpression

Method Detail

deepCopy

deepCopy

getConstant

addConstant

setConstant

reset

addTerms

addTerms

addTerms

addTerms

addTerms

addTerms

addTerms

addTerms

addTerm

addTerm

addTerm

addTerm

addTerm

addTerm

addTerm

addTerm

addTerms

addTerms

addTerms

addTerms

setCreateLists

create

create

create