import java.applet.*;
import java.awt.*;

public class SimpleGraph extends Applet
{
   String theFunction;
   Parser theParser;
   Graph theGraph;

   double xMin, xMax, yMin, yMax;

   public void init()
   {
      theFunction = super.getParameter("function");
      xMin = Double.valueOf(super.getParameter("xmin")).doubleValue();
      xMax = Double.valueOf(super.getParameter("xmax")).doubleValue();
      yMin = Double.valueOf(super.getParameter("ymin")).doubleValue();
      yMax = Double.valueOf(super.getParameter("ymax")).doubleValue();
      theParser = new Parser(1);
      theParser.defineVariable(1,"x");
      theGraph = new Graph(theFunction, theParser,
                           xMin, xMax, yMin, yMax, 
                           Color.blue, size());
    }

   public void paint(Graphics g)
   {
       theGraph.drawAxis(g, Color.red);
       theGraph.drawGraph(g);
   }
}