Tool
Double pendulum
Two pendulums simulated side by side starting 10⁻⁴ rad apart. Sensitive dependence on initial conditions, the defining property of chaos, becomes visible within seconds.
Sensitive dependence in action
Two pendulums are simulated in lock-step starting from the same initial angles but with a difference of 10⁻⁴ rad in θ₁₀. Within seconds the orange and blue traces diverge completely — the signature of chaos.
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