Double Pendulum

Stable

Chaotic

Current coordinate

Axis X: -- --

Axis Y: -- --

Show grid

What does it mean?

The color shows how chaotic the motion is for each set of initial conditions. In chaotic regions, a tiny change at the start leads to a completely different path.

Challenges

Try the Pendulum Trajectory challenge and the Chaos Map Explorer challenge. Share your favorite patterns!

Explore challenges

How is this calculated?

We simulate the system with a Runge–Kutta (RK4) integrator, then estimate the Lyapunov exponent to color each point.

Masses (kg)

Lengths (m)

Initial Angles (°)

Initial Velocities (rad/s)

Gravity

Damping

Enable

Trail

Show trail

Infinite trail

Settings