org.apache.commons.math3.optim.linear

## Class LinearObjectiveFunction

• java.lang.Object
• org.apache.commons.math3.optim.linear.LinearObjectiveFunction
• All Implemented Interfaces:
Serializable, MultivariateFunction, OptimizationData

public class LinearObjectiveFunction
extends Object
implements MultivariateFunction, OptimizationData, Serializable
An objective function for a linear optimization problem.

A linear objective function has one the form:

 c1x1 + ... cnxn + d

The ci and d are the coefficients of the equation, the xi are the coordinates of the current point.

Since:
2.0
Serialized Form
• ### Constructor Summary

Constructors
Constructor and Description
LinearObjectiveFunction(double[] coefficients, double constantTerm)
LinearObjectiveFunction(RealVector coefficients, double constantTerm)
• ### Method Summary

Methods
Modifier and Type Method and Description
boolean equals(Object other)
RealVector getCoefficients()
Gets the coefficients of the linear equation being optimized.
double getConstantTerm()
Gets the constant of the linear equation being optimized.
int hashCode()
double value(double[] point)
Computes the value of the linear equation at the current point.
double value(RealVector point)
Computes the value of the linear equation at the current point.
• ### Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
• ### Constructor Detail

• #### LinearObjectiveFunction

public LinearObjectiveFunction(double[] coefficients,
double constantTerm)
Parameters:
coefficients - Coefficients for the linear equation being optimized.
constantTerm - Constant term of the linear equation.
• #### LinearObjectiveFunction

public LinearObjectiveFunction(RealVector coefficients,
double constantTerm)
Parameters:
coefficients - Coefficients for the linear equation being optimized.
constantTerm - Constant term of the linear equation.
• ### Method Detail

• #### getCoefficients

public RealVector getCoefficients()
Gets the coefficients of the linear equation being optimized.
Returns:
coefficients of the linear equation being optimized.
• #### getConstantTerm

public double getConstantTerm()
Gets the constant of the linear equation being optimized.
Returns:
constant of the linear equation being optimized.
• #### value

public double value(double[] point)
Computes the value of the linear equation at the current point.
Specified by:
value in interface MultivariateFunction
Parameters:
point - Point at which linear equation must be evaluated.
Returns:
the value of the linear equation at the current point.
• #### value

public double value(RealVector point)
Computes the value of the linear equation at the current point.
Parameters:
point - Point at which linear equation must be evaluated.
Returns:
the value of the linear equation at the current point.
• #### equals

public boolean equals(Object other)
Overrides:
equals in class Object
• #### hashCode

public int hashCode()
Overrides:
hashCode in class Object