FUNC - Type of function to solve.public abstract class BaseAbstractUnivariateSolver<FUNC extends UnivariateFunction> extends Object implements BaseUnivariateSolver<FUNC>
| Modifier | Constructor and Description | 
|---|---|
| protected  | BaseAbstractUnivariateSolver(double absoluteAccuracy)Construct a solver with given absolute accuracy. | 
| protected  | BaseAbstractUnivariateSolver(double relativeAccuracy,
                            double absoluteAccuracy)Construct a solver with given accuracies. | 
| protected  | BaseAbstractUnivariateSolver(double relativeAccuracy,
                            double absoluteAccuracy,
                            double functionValueAccuracy)Construct a solver with given accuracies. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected double | computeObjectiveValue(double point)Compute the objective function value. | 
| protected abstract double | doSolve()Method for implementing actual optimization algorithms in derived
 classes. | 
| double | getAbsoluteAccuracy()Get the absolute accuracy of the solver. | 
| int | getEvaluations()Get the number of evaluations of the objective function. | 
| double | getFunctionValueAccuracy()Get the function value accuracy of the solver. | 
| double | getMax() | 
| int | getMaxEvaluations()Get the maximum number of function evaluations. | 
| double | getMin() | 
| double | getRelativeAccuracy()Get the relative accuracy of the solver. | 
| double | getStartValue() | 
| protected void | incrementEvaluationCount()Increment the evaluation count by one. | 
| protected boolean | isBracketing(double lower,
            double upper)Check whether the function takes opposite signs at the endpoints. | 
| protected boolean | isSequence(double start,
          double mid,
          double end)Check whether the arguments form a (strictly) increasing sequence. | 
| protected void | setup(int maxEval,
     FUNC f,
     double min,
     double max,
     double startValue)Prepare for computation. | 
| double | solve(int maxEval,
     FUNC f,
     double startValue)Solve for a zero in the vicinity of  startValue. | 
| double | solve(int maxEval,
     FUNC f,
     double min,
     double max)Solve for a zero root in the given interval. | 
| double | solve(int maxEval,
     FUNC f,
     double min,
     double max,
     double startValue)Solve for a zero in the given interval, start at  startValue. | 
| protected void | verifyBracketing(double lower,
                double upper)Check that the endpoints specify an interval and the function takes
 opposite signs at the endpoints. | 
| protected void | verifyInterval(double lower,
              double upper)Check that the endpoints specify an interval. | 
| protected void | verifySequence(double lower,
              double initial,
              double upper)Check that  lower < initial < upper. | 
protected BaseAbstractUnivariateSolver(double absoluteAccuracy)
absoluteAccuracy - Maximum absolute error.protected BaseAbstractUnivariateSolver(double relativeAccuracy,
                            double absoluteAccuracy)
relativeAccuracy - Maximum relative error.absoluteAccuracy - Maximum absolute error.protected BaseAbstractUnivariateSolver(double relativeAccuracy,
                            double absoluteAccuracy,
                            double functionValueAccuracy)
relativeAccuracy - Maximum relative error.absoluteAccuracy - Maximum absolute error.functionValueAccuracy - Maximum function value error.public int getMaxEvaluations()
getMaxEvaluations in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>public int getEvaluations()
optimize method. It is 0 if the method has not been
 called yet.getEvaluations in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>public double getMin()
public double getMax()
public double getStartValue()
public double getAbsoluteAccuracy()
v is a value returned by
 one of the solve methods, then a root of the function should
 exist somewhere in the interval (v - ε, v + ε).getAbsoluteAccuracy in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>public double getRelativeAccuracy()
BaseUnivariateSolver.getAbsoluteAccuracy(), but using
 relative, rather than absolute error.  If ρ is the relative accuracy
 configured for a solver and v is a value returned, then a root
 of the function should exist somewhere in the interval
 (v - ρ v, v + ρ v).getRelativeAccuracy in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>public double getFunctionValueAccuracy()
v is
 a value returned by the solver for a function f,
 then by contract, |f(v)| should be less than or equal to
 the function value accuracy configured for the solver.getFunctionValueAccuracy in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>protected double computeObjectiveValue(double point)
                                throws TooManyEvaluationsException
point - Point at which the objective function must be evaluated.TooManyEvaluationsException - if the maximal number of evaluations
 is exceeded.protected void setup(int maxEval,
         FUNC f,
         double min,
         double max,
         double startValue)
              throws NullArgumentException
solve methods.f - Function to solve.min - Lower bound for the interval.max - Upper bound for the interval.startValue - Start value to use.maxEval - Maximum number of evaluations.NullArgumentException - if f is nullpublic double solve(int maxEval,
           FUNC f,
           double min,
           double max,
           double startValue)
             throws TooManyEvaluationsException,
                    NoBracketingException
startValue.
 A solver may require that the interval brackets a single zero root.
 Solvers that do require bracketing should be able to handle the case
 where one of the endpoints is itself a root.solve in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>maxEval - Maximum number of evaluations.f - Function to solve.min - Lower bound for the interval.max - Upper bound for the interval.startValue - Start value to use.TooManyEvaluationsException - if
 the allowed number of evaluations is exceeded.NoBracketingExceptionpublic double solve(int maxEval,
           FUNC f,
           double min,
           double max)
solve in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>maxEval - Maximum number of evaluations.f - Function to solve.min - Lower bound for the interval.max - Upper bound for the interval.public double solve(int maxEval,
           FUNC f,
           double startValue)
             throws TooManyEvaluationsException,
                    NoBracketingException
startValue.solve in interface BaseUnivariateSolver<FUNC extends UnivariateFunction>maxEval - Maximum number of evaluations.f - Function to solve.startValue - Start value to use.TooManyEvaluationsException - if
 the allowed number of evaluations is exceeded.NoBracketingExceptionprotected abstract double doSolve()
                           throws TooManyEvaluationsException,
                                  NoBracketingException
TooManyEvaluationsException - if the maximal number of evaluations
 is exceeded.NoBracketingException - if the initial search interval does not bracket
 a root and the solver requires it.protected boolean isBracketing(double lower,
                   double upper)
lower - Lower endpoint.upper - Upper endpoint.true if the function values have opposite signs at the
 given points.protected boolean isSequence(double start,
                 double mid,
                 double end)
start - First number.mid - Second number.end - Third number.true if the arguments form an increasing sequence.protected void verifyInterval(double lower,
                  double upper)
                       throws NumberIsTooLargeException
lower - Lower endpoint.upper - Upper endpoint.NumberIsTooLargeException - if lower >= upper.protected void verifySequence(double lower,
                  double initial,
                  double upper)
                       throws NumberIsTooLargeException
lower < initial < upper.lower - Lower endpoint.initial - Initial value.upper - Upper endpoint.NumberIsTooLargeException - if lower >= initial or
 initial >= upper.protected void verifyBracketing(double lower,
                    double upper)
                         throws NullArgumentException,
                                NoBracketingException
lower - Lower endpoint.upper - Upper endpoint.NullArgumentException - if the function has not been set.NoBracketingException - if the function has the same sign at
 the endpoints.protected void incrementEvaluationCount()
                                 throws TooManyEvaluationsException
computeObjectiveValue(double) calls this method internally.
 It is provided for subclasses that do not exclusively use
 computeObjectiveValue to solve the function.
 See e.g. AbstractUnivariateDifferentiableSolver.TooManyEvaluationsException - when the allowed number of function
 evaluations has been exhausted.Copyright © 2003–2016 The Apache Software Foundation. All rights reserved.