// optmn_function.java   pass a function and range to optmn_run.java
//                       needs optmn_interface.java  definition

public class optmn_function implements optmn_interface
{
  public int n = 2; // number of variables
  public double xmin[] = {-1.0, 1.0};
  public double ymin[] = {-1.0, 1.0};
  public double x[] = {0.0, 0.0}; // initial and returned values
  public double step[] = {0.001, 0.001}; // initial and returned values
  public int maxcnt = 2001;  // 0.001 for search
  public double yfinal = -9999.999; // don't know minimum value 

  public double f(double x[])
  {
    return Math.sin(10.0*x[0]) + Math.sin(15.0*x[1]); // just sample function
  }

} // end optmn_function.java