// Kenneth A. Lee
 //
 import java.applet.Applet;
 
public class Quadratic extends Applet
{
  public double a, b, c ;
  
  public void init()
  {
    a=0;
    b=0;
    c=0;
  }
  
  public String getRoot1()
  {
    if (getDescriminent() < 0.0 || this.a == 0.0)
      return "" + ((-b + Math.sqrt(-getDescriminent()))/(2 * a)) + " i";
    else
      return "" + ((-b + Math.sqrt(getDescriminent()))/(2 * a));
  }
  
  public String getRoot2()
  {
    if (getDescriminent() < 0.0 || a == 0.0)
      return "" + ((-b - Math.sqrt(-getDescriminent()))/(2 * a)) + " i";
    else
      return "" + ((-b - Math.sqrt(getDescriminent()))/(2 * a));
  }

  public double getDescriminent()
  {
    return (b*b - 4 * a * c);
  }
  
  public void setA(double bValue)
  {
    a = bValue;
  }
  
  public void setB(double bValue)
  {
    b = bValue;
  }

  public void setC(double bValue)
  {
    c = bValue;
  }
  
}