Documentation API of the 'jhplot.math.num.root.BisectionRootFinder' Java class

Class BisectionRootFinder

  • public class BisectionRootFinderextends IterativeMethod

    The bisection method (1) for finding roots of functions.

    For example, to find roots for sine, first a Function is defined:

     Function sine = new Function() {    public double evaluate(double x) {        return Math.sin(x);    }} }; 

    Then, a bisection root finder is created with the above function:

     BisectionRootFinder finder = new BisectionRootFinder(sine); 

    Lastly, locating roots is accomplished using the findRoot(double, double) method:

     // find the root between 3 and 4. double pi = finder.findRoot(3.0, 4.0);  // find the root between -1 and 1. double zero = finder.findRoot(-1.0, 1.0); 


    1. Eric W. Weisstein. "Bisection." From MathWorld--A Wolfram Web Resource.

    • Constructor Detail

      • BisectionRootFinder

        public BisectionRootFinder(Function f)
        Create a root finder for the given function.
        f - the target function.
      • BisectionRootFinder

        public BisectionRootFinder(Function f,                   int iterations,                   double error)
        Create a root finder for the given function.
        f - the target function.
        iterations - maximum number of iterations.
        error - maximum relative error.
    • Method Detail

      • findRoot

        public double findRoot(double min,              double max)                throws NumericException
        Find a root of the target function that lies in the interval [ min, max].
        min - the lower bound of the search interval.
        max - the upper bound of the search interval.
        a root that lies between min and max, inclusive.
        NumericException - if a root could not be found.
      • getFunction

        public Function getFunction()
        Access the target function.
        the target function.
      • setFunction

        public void setFunction(Function f)
        Modify the target function.
        f - the new target function.

SCaVis 2.2 © jWork.ORG

Warning: You see this message because an access to the SCaVis documentation for third-party Java classes is denied. Guests can only view jhplot Java API. To enable the description of all Java classes of SCaVis, please request the full SCaVis membership.

If you are already a full member, please login to the SCaVis member area before visiting this documentation.