public class  UnitCircleClient { 

  public static void main(String[] args) {

    StdDraw.setXscale( -1.6, 1.6 );
    StdDraw.setYscale( -1.6, 1.6 );

    double r, x, y;

    for (double theta=0; theta<2*Math.PI; theta+=Math.PI/100){

      r = 1; 
 
      // convert to xy coords & drop a circle
      x = r*Math.cos(theta);
      y = r*Math.sin(theta);

      StdDraw.circle( x,y, .01);

    }


  }

}