edu.northwestern.at.utils.math.rootfinders
Class BracketRoot

java.lang.Object
  edu.northwestern.at.utils.math.rootfinders.BracketRoot

public class BracketRoot
extends java.lang.Object

Find interval bracketing a root.

Constructor Summary

BracketRoot()

Method Summary

static boolean

bracketRoot(double[] bracket, MonadicFunction function, int maxIter, double expansionFactor) Find interval bracketing a root.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BracketRoot

public BracketRoot()

Method Detail

bracketRoot

public static boolean bracketRoot(double[] bracket,
                                  MonadicFunction function,
                                  int maxIter,
                                  double expansionFactor)

Find interval bracketing a root.

Parameters:

bracket - Array containing initial estimate for of bracketing interval. bracket[0] is left hand estimate. bracket[1] is right hand estimate.

function - Function whose root is to be bracketed.

maxIter - Maximum number of iterations to try expanding bracket.

expansionFactor - Factor by which to expand bracket interval on each iteration.

Returns:

True if bracket successfully found The new bracket will be placed in "bracket". False if bracket could not be found within maxIter attempts.