VIII. Extreme of a Function


About the Problem

The problem is again looking for the extreme of a function. However in this case one more dimension is added.




Example

Graph represents a search space and lines represent solutions (points in the search space). The red line is the best solution, blue lines are the other ones.
You can enter your own function in a text field below graph (after change press enter or button Change). Below it you can define limits of function. Function can consist of x, y, pi, e, (, ), /, *, +, -, !, ^ and functions abs, acos, acosh, asin, asinh, atan, atanh, cos, cosh, ln, log, sin, sinh, sqr, sqrt, tan and tanh.
The graph can be rotated by dragging it with a mouse.
You can also change crossover and mutation probability. By checkboxes you can specify whether you want to use elitism and whether you look for minimum or maximum.
Try to change the function and look how GA works. If you find some interesting function, where GA behaves very good or very strange, you can email it to me.


Here is applet, but your browser does not support Java. If you want to see applets, please check browser requirements.


           
(c) Marek Obitko, 1998