• Easy user function inclusion
• 3D representation of functions
• Light source animation
• Selection among several optimizing algorithms
• Zoom in/out, shift in all directions
• Control over initial step and maximum number of steps
• Easy set up of limits

import com.javir.Optimizer.*;


public class MyFunctionViewer extends FunctionViewer 
{

public MyFunctionViewer(){
}

public String getFunctionName(int i){
	String Names[]={
	"Function1: hills+banana",
	"Function2: random hils",
	"Function3: circles"};
if (i>=Names.length) return null;
return Names[i];
}

public String getFunctionText(int i){
switch (getCurrentFunction()){
	case 0: return "0.6*(x*x+y*y)\n"+
		"+k1/[k2*((x-k3)^2+(y-k4)^2)+1]\n"+
		"+k5/[k6*((x-k7)^2+(y-k8)^2)+1]\n"+
		"+k9/[k10*((x-k11)^2+(y-k12)^2)+1]\n";
	case 1: return "Y=0.6*(x*x+y*y)\n"+
		"for(int i=0;i<20;i++)// kn are random\n"+
		" Y+=k1/[k2*((x-k3)^2+(y-k4)^2)+1]\n";
	case 2: return "see source for details";
default: return "";}

}

public double getValue(double xx[]){
switch (getCurrentFunction()){
	case 0: return hills_and_banana(xx);
	case 1: return hills(xx);
	case 2: return circles(xx);}
return 0;} 

public double hills_and_banana(double xx[]){
	...
};

public double hills(double xx[]){
	...
}

public double circles(double xx[])
{
	...
}
}