This application simulates the movement of a pendulum in three dimensions, also known as a spherical pendulum. There is no damping.

If you're on a touchscreen device, use the usual touchscreen gestures:

• One finger: moves the viewing angle.
• Two fingers, pinch gesture: zooms.
• Two fingers, swiping in the same direction: shifts the camera position.

Buttons:

• : Restarts the simulation.
• : Accesses the parameters and initial conditions of the system: initial angle, pendulum length, etc.