com.webcab.ejb.math.optimization.unidimensional
Class Bracket

java.lang.Object
  |
  +--com.webcab.ejb.math.optimization.unidimensional.Bracket

public class Bracket

extends Object

A simple structure containing all data necessary for a locate algorithm. A bracket is an interval which certainly contains an extremum. If you have a general continuous function you need three points for a braket. These points are kept in fields a, b and c of the class. The value of the function is kept in fields voldg, oldg and g. If the function is differentiable and has a continuous derivative then two points are enough to bracket. The bracketing algorithm must comply with the following rules with regard to the bracket class it generates:

• a <= b <= c
• f(a) = voldg
• f(b) = oldg
• f(c) = g

The bracketing algorithm must also guarantee that at least one local extremum exists between points a and c. If these conditions are met, a correct locate algoritm should be able to find the extremum using the bracket class as input.

Constructor Summary

Bracket()

Methods inherited from class java.lang.Object

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

Constructor Detail

Bracket

public Bracket()