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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 |
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Fields inherited from class org.apache.commons.math.analysis.solvers.UnivariateRealSolverImpl |
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defaultFunctionValueAccuracy, f, functionValue, functionValueAccuracy, result, resultComputed |
Fields inherited from class org.apache.commons.math.ConvergingAlgorithmImpl |
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absoluteAccuracy, defaultAbsoluteAccuracy, defaultMaximalIterationCount, defaultRelativeAccuracy, iterationCount, maximalIterationCount, relativeAccuracy |
Constructor Summary | |
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RiddersSolver()
Construct a solver. |
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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 | |
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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 |
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checkResultComputed, clearResult, getFunctionValue, getFunctionValueAccuracy, getResult, isBracketing, isSequence, resetFunctionValueAccuracy, setFunctionValueAccuracy, setResult, setResult, verifyBracketing, verifyInterval, verifySequence |
Methods inherited from class org.apache.commons.math.ConvergingAlgorithmImpl |
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getAbsoluteAccuracy, getIterationCount, getMaximalIterationCount, getRelativeAccuracy, resetAbsoluteAccuracy, resetMaximalIterationCount, resetRelativeAccuracy, setAbsoluteAccuracy, setMaximalIterationCount, setRelativeAccuracy |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.commons.math.ConvergingAlgorithm |
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getAbsoluteAccuracy, getIterationCount, getMaximalIterationCount, getRelativeAccuracy, resetAbsoluteAccuracy, resetMaximalIterationCount, resetRelativeAccuracy, setAbsoluteAccuracy, setMaximalIterationCount, setRelativeAccuracy |
Constructor Detail |
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@Deprecated public RiddersSolver(UnivariateRealFunction f)
solve(UnivariateRealFunction, double, double)
or
UnivariateRealSolver.solve(UnivariateRealFunction, double, double, double)
method.
f
- function to solvepublic RiddersSolver()
Method Detail |
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@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
functionpublic 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 invalidpublic 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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