/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://seneca-cdot.sketchpad.cc/sp/pad/view/ro.k1klrUIS0D4/rev.1
 * 
 * authors: 
 *   Catherine Leung

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



size(500,300);    //sets the size of the sketch
ellipse(250,150,200,200);   //draws a circle in the middle of