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♾️ Double Pendulum Rig (2D): Front View, Poincare Section and Twin Divergence

Interactive 2D double pendulum: rigid links with rod and bob inertia, exact Lagrange equations with RK4, normal modes, Poincare section, twin divergence and five in-page numerical checks.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Interactive 2D double pendulum: rigid links with rod and bob inertia, exact Lagrange equations with RK4, normal modes, Poincare section, twin divergence and five in-page numerical checks.

double pendulumchaosLagrangian mechanicsnormal modesLyapunov exponent

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