Input Assumptions:

• There is at least 2 points
• Points are not duplicated (i.e. no points with same coordinates)

• Insert points: in the applet's canvas area, click the left mouse button.
• Run: click Run button to run the applet.
• Run modes: continuous and step mode are available. If step mode is selected, click Next Step button to proceed to next step.
• Reset: click Reset button will remove all points.
• Demonstrate: click Demo button will start a demonstration.
• Animation speed: slow and fast speeds are available.