This applet demonstrates the correspondence between the points on the number line and the points on the unit circle. [br][list][br][*]Enter a real number in the “step” input box. Try the applet with whole numbers, fractions, multiples or fractions of [math]\pi[/math]. (Example: pi/4)[br][*]Select “Wrap Positive Numbers” or “Wrap Negative Numbers”. Notice, you have to deselect one checkbox in order to be able to select the other one.[br][/list]