How to use

org.apache.commons.math3.analysis.solvers.RiddersSolver

constructor

/**
 * @param functionValueAccuracy The accuracy of the function evaluations.
 */
public RidderSingleRootFinder(double functionValueAccuracy) {
 _ridder = new RiddersSolver(functionValueAccuracy);
}

/**
 * @param functionValueAccuracy The accuracy of the function evaluations.
 * @param absoluteAccurary The maximum absolute error of the variable.
 */
public RidderSingleRootFinder(double functionValueAccuracy, double absoluteAccurary) {
 _ridder = new RiddersSolver(functionValueAccuracy, absoluteAccurary);
}

  solver = new MullerSolver();
} else if (method.equals("Ridders")) {
  solver = new RiddersSolver();
} else if (method.equals("Secant")) {
  solver = new SecantSolver();