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java.lang.Objectorg.apache.commons.math.ConvergingAlgorithmImpl
org.apache.commons.math.analysis.solvers.UnivariateRealSolverImpl
org.apache.commons.math.analysis.solvers.NewtonSolver
public class NewtonSolver
Implements Newton's Method for finding zeros of real univariate functions.
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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NewtonSolver()
Construct a solver. |
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NewtonSolver(DifferentiableUnivariateRealFunction 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 startValue)
Deprecated. |
double |
solve(UnivariateRealFunction f,
double min,
double max)
Find a zero near the midpoint of min and max . |
double |
solve(UnivariateRealFunction f,
double min,
double max,
double startValue)
Find a zero near the value startValue . |
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 NewtonSolver(DifferentiableUnivariateRealFunction f)
solve(UnivariateRealFunction, double, double)
or
UnivariateRealSolver.solve(UnivariateRealFunction, double, double, double)
method.
f
- function to solve.public NewtonSolver()
Method Detail |
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@Deprecated public double solve(double min, double max) throws MaxIterationsExceededException, 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.
FunctionEvaluationException
- if an error occurs evaluating the
function
MaxIterationsExceededException
@Deprecated public double solve(double min, double max, double startValue) throws MaxIterationsExceededException, 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.startValue
- the start value to use
FunctionEvaluationException
- if an error occurs evaluating the
function
MaxIterationsExceededException
public double solve(UnivariateRealFunction f, double min, double max) throws MaxIterationsExceededException, FunctionEvaluationException
min
and max
.
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 or derivative
IllegalArgumentException
- if min is not less than maxpublic double solve(UnivariateRealFunction f, double min, double max, double startValue) throws MaxIterationsExceededException, FunctionEvaluationException
startValue
.
f
- the function to solvemin
- the lower bound for the interval (ignored).max
- the upper bound for the interval (ignored).startValue
- the start value to use.
MaxIterationsExceededException
- if the maximum iteration count is exceeded
FunctionEvaluationException
- if an error occurs evaluating the
function or derivative
IllegalArgumentException
- if startValue is not between min and max or
if function is not a DifferentiableUnivariateRealFunction
instance
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