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Double Pendulum Chaos Ensemble (2D)

2D canvas companion to the 3D double-pendulum chaos scene: seven identical pendulums released a fraction of a degree apart, integrated with RK4 against the real Lagrangian equations of motion, so you watch sensitivity to initial conditions unfold as a flat divergence readout instead of a 3D scene.

Chaos & Dynamics2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion drives the same seven-pendulum ensemble as the 3D scene through a flat canvas view built for reading the physics rather than orbiting a camera: seven identical double pendulums are released with initial angles offset by a microscopic epsilon, each integrated independently with RK4 against the real Lagrangian double-pendulum equations of motion, so you can watch a spread readout climb from near-zero to total divergence as the chaotic system's sensitivity to initial conditions plays out in real time, with live sliders for gravity, rod-length ratio, epsilon and time speed plus the same three scenario presets as the 3D version.

⚙ Under the hood

Seven identical double pendulums, released a fraction of a degree apart and integrated with RK4 against the real Lagrangian equations of motion, reveal chaotic sensitivity to initial conditions on a flat 2D canvas.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install