public class IllinoisSolver extends BaseSecantSolver
Regula Falsi
method.
Like the Regula Falsi method, convergence is guaranteed by maintaining a bracketed solution. The Illinois method however, should converge much faster than the original Regula Falsi method. Furthermore, this implementation of the Illinois method should not suffer from the same implementation issues as the Regula Falsi method, which may fail to convergence in certain cases.
The Illinois method assumes that the function is continuous, but not necessarily smooth.
Implementation based on the following article: M. Dowell and P. Jarratt, A modified regula falsi method for computing the root of an equation, BIT Numerical Mathematics, volume 11, number 2, pages 168-174, Springer, 1971.
BaseSecantSolver.Method
BracketedUnivariateSolver.Interval
DEFAULT_ABSOLUTE_ACCURACY
Constructor and Description |
---|
IllinoisSolver()
Construct a solver with default accuracy (1e-6).
|
IllinoisSolver(double absoluteAccuracy)
Construct a solver.
|
IllinoisSolver(double relativeAccuracy,
double absoluteAccuracy)
Construct a solver.
|
IllinoisSolver(double relativeAccuracy,
double absoluteAccuracy,
double functionValueAccuracy)
Construct a solver.
|
doSolve, doSolveInterval, solve, solve, solve, solveInterval
computeObjectiveValue, getAbsoluteAccuracy, getEvaluations, getFunctionValueAccuracy, getMax, getMaxEvaluations, getMin, getRelativeAccuracy, getStartValue, incrementEvaluationCount, isBracketing, isSequence, setup, solve, solve, verifyBracketing, verifyInterval, verifySequence
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
solveInterval
getAbsoluteAccuracy, getEvaluations, getFunctionValueAccuracy, getMaxEvaluations, getRelativeAccuracy, solve, solve
public IllinoisSolver()
public IllinoisSolver(double absoluteAccuracy)
absoluteAccuracy
- Absolute accuracy.public IllinoisSolver(double relativeAccuracy, double absoluteAccuracy)
relativeAccuracy
- Relative accuracy.absoluteAccuracy
- Absolute accuracy.public IllinoisSolver(double relativeAccuracy, double absoluteAccuracy, double functionValueAccuracy)
relativeAccuracy
- Relative accuracy.absoluteAccuracy
- Absolute accuracy.functionValueAccuracy
- Maximum function value error.Copyright © 2016–2017 Hipparchus.org. All rights reserved.