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java.lang.Objectorg.apache.commons.math.ConvergingAlgorithmImpl
org.apache.commons.math.analysis.solvers.UnivariateRealSolverImpl
org.apache.commons.math.analysis.solvers.RiddersSolver
public class RiddersSolver
Implements the Ridders' Method for root finding of real univariate functions. For reference, see C. Ridders, A new algorithm for computing a single root of a real continuous function , IEEE Transactions on Circuits and Systems, 26 (1979), 979 - 980.
The function should be continuous but not necessarily smooth.
| Field Summary |
|---|
| Fields inherited from class org.apache.commons.math.analysis.solvers.UnivariateRealSolverImpl |
|---|
defaultFunctionValueAccuracy, f, functionValue, functionValueAccuracy, result, resultComputed |
| Fields inherited from class org.apache.commons.math.ConvergingAlgorithmImpl |
|---|
absoluteAccuracy, defaultAbsoluteAccuracy, defaultMaximalIterationCount, defaultRelativeAccuracy, iterationCount, maximalIterationCount, relativeAccuracy |
| Constructor Summary | |
|---|---|
RiddersSolver()
Construct a solver. |
|
RiddersSolver(UnivariateRealFunction f)
Deprecated. as of 2.0 the function to solve is passed as an argument to the solve(UnivariateRealFunction, double, double) or
UnivariateRealSolver.solve(UnivariateRealFunction, double, double, double)
method. |
|
| Method Summary | |
|---|---|
double |
solve(double min,
double max)
Deprecated. |
double |
solve(double min,
double max,
double initial)
Deprecated. |
double |
solve(UnivariateRealFunction f,
double min,
double max)
Find a root in the given interval. |
double |
solve(UnivariateRealFunction f,
double min,
double max,
double initial)
Find a root in the given interval with initial value. |
| Methods inherited from class org.apache.commons.math.analysis.solvers.UnivariateRealSolverImpl |
|---|
checkResultComputed, clearResult, getFunctionValue, getFunctionValueAccuracy, getResult, isBracketing, isSequence, resetFunctionValueAccuracy, setFunctionValueAccuracy, setResult, setResult, verifyBracketing, verifyInterval, verifySequence |
| Methods inherited from class org.apache.commons.math.ConvergingAlgorithmImpl |
|---|
getAbsoluteAccuracy, getIterationCount, getMaximalIterationCount, getRelativeAccuracy, resetAbsoluteAccuracy, resetMaximalIterationCount, resetRelativeAccuracy, setAbsoluteAccuracy, setMaximalIterationCount, setRelativeAccuracy |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Methods inherited from interface org.apache.commons.math.ConvergingAlgorithm |
|---|
getAbsoluteAccuracy, getIterationCount, getMaximalIterationCount, getRelativeAccuracy, resetAbsoluteAccuracy, resetMaximalIterationCount, resetRelativeAccuracy, setAbsoluteAccuracy, setMaximalIterationCount, setRelativeAccuracy |
| Constructor Detail |
|---|
@Deprecated public RiddersSolver(UnivariateRealFunction f)
solve(UnivariateRealFunction, double, double) or
UnivariateRealSolver.solve(UnivariateRealFunction, double, double, double)
method.
f - function to solvepublic RiddersSolver()
| Method Detail |
|---|
@Deprecated
public double solve(double min,
double max)
throws ConvergenceException,
FunctionEvaluationException
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.
min - the lower bound for the interval.max - the upper bound for the interval.
ConvergenceException - if the maximum iteration count is exceeded
or the solver detects convergence problems otherwise.
FunctionEvaluationException - if an error occurs evaluating the
function
@Deprecated
public double solve(double min,
double max,
double initial)
throws ConvergenceException,
FunctionEvaluationException
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.
min - the lower bound for the interval.max - the upper bound for the interval.initial - the start value to use
ConvergenceException - if the maximum iteration count is exceeded
or the solver detects convergence problems otherwise.
FunctionEvaluationException - if an error occurs evaluating the
function
public double solve(UnivariateRealFunction f,
double min,
double max,
double initial)
throws MaxIterationsExceededException,
FunctionEvaluationException
Requires bracketing condition.
f - the function to solvemin - the lower bound for the intervalmax - the upper bound for the intervalinitial - the start value to use
MaxIterationsExceededException - if the maximum iteration count is exceeded
FunctionEvaluationException - if an error occurs evaluating the
function
IllegalArgumentException - if any parameters are invalid
public double solve(UnivariateRealFunction f,
double min,
double max)
throws MaxIterationsExceededException,
FunctionEvaluationException
Requires bracketing condition.
f - the function to solvemin - the lower bound for the intervalmax - the upper bound for the interval
MaxIterationsExceededException - if the maximum iteration count is exceeded
FunctionEvaluationException - if an error occurs evaluating the
function
IllegalArgumentException - if any parameters are invalid
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