The simulation can be started and paused by pressing the Play/Pause button. The Reset button brings both pendula in their initial positions.

In the upper left corner there are 6 text boxes that can be used to change the parameters from their default values. You can change the

Press enter every time you insert a new value into a text box.

In the lower left corner the angles $ \alpha(t)$ and $ \beta(t)$ are plot. The color of the lines correspond to that of the pendula, blue for the left pendulum and red for the right one.

This applet can be downloaded and run off line on every computer with a Java compatible browser. The source code is also available here.

NOTE: The smoothness of the simulation can vary on different systems (different operating systems, Internet browsers, or computer configurations). The applet runs best on a windows machine running the latest version of Internet explorer.