Radians, Number Line and the Unit Circle

This applet demonstrates the correspondence between the points on the number line and the points on the unit circle.

• Enter a real number in the “step” input box. Try the applet with whole numbers, fractions, multiples or fractions of \(\pi\). (Example: pi/4)
• 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.