ApacheCommonsNonLinearConjugateGradientOptimizer

java.lang.Object
- net.sf.tweety.math.opt.Solver
- - net.sf.tweety.math.opt.solver.ApacheCommonsNonLinearConjugateGradientOptimizer

```
public class ApacheCommonsNonLinearConjugateGradientOptimizer
extends Solver
```
This class is a wrapper for the Apache Commons Math3 Non-Linear Conjugate Gradient Optimizer (https://commons.apache.org/proper/commons-math/).

NOTE: This solver does not allow any constraints, box constraints of variables are ignored!

Author:

Matthias Thimm

Field Summary

Fields
Modifier and Type Field Description

private int maxEval
The maximum number of evaluations.

private double precision
The precision

Constructor Summary

Constructors
Constructor	Description
`ApacheCommonsNonLinearConjugateGradientOptimizer(int maxEval, double precision)`	Creates a new solver.

Method Summary

Modifier and Type	Method	Description
`static boolean`	`isInstalled()`
`java.util.Map<Variable,Term>`	`solve(ConstraintSatisfactionProblem problem)`	Computes a solution to the given constraint satisfaction or optimization problem, i.e.

Methods inherited from class net.sf.tweety.math.opt.Solver
getDefaultGeneralSolver, getDefaultIntegerLinearSolver, getDefaultLinearSolver, hasDefaultGeneralSolver, hasDefaultIntegerLinearSolver, hasDefaultLinearSolver, setDefaultGeneralSolver, setDefaultIntegerLinearSolver, setDefaultLinearSolver

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

- Field Detail
  - maxEval
```
private int maxEval
```
    The maximum number of evaluations.
  - precision
```
private double precision
```
    The precision
- Constructor Detail
  - ApacheCommonsNonLinearConjugateGradientOptimizer
```
public ApacheCommonsNonLinearConjugateGradientOptimizer(int maxEval,
                                                        double precision)
```
    Creates a new solver.
    
    Parameters:
    
    maxEval - the maximum number of evaluations.
    
    precision - the precision.
- Method Detail
  - solve
```
public java.util.Map<Variable,Term> solve(ConstraintSatisfactionProblem problem)
                                         throws GeneralMathException
```
    Description copied from class: Solver
    
    Computes a solution to the given constraint satisfaction or optimization problem, i.e. a mapping from variables of the problem to terms.
    
    Specified by:
    
    solve in class Solver
    
    Parameters:
    
    problem - the actual problem
    
    Returns:
    
    a mapping from variables of the problem to terms.
    
    Throws:
    
    GeneralMathException - if something went wrong.
  - isInstalled
```
public static boolean isInstalled()
                           throws java.lang.UnsupportedOperationException
```
    Throws:
    
    java.lang.UnsupportedOperationException