Magnetic Pendulum

Defaults setting: N=3, R=0.90, g=10, d=0.15, FC=0.05, ℓ=25; initial points: (1.2,1.0), (1.21,0.99), (1.205,0.995).

Speed ×

Magnets (N)

Circle radius R

0.90

String length ℓ

25.0

Plane offset d

0.150

Gravity g

10.0

Δt (s)

0.005

Friction (FC)

0.050

Magnetic strength k

1.00

Trail length

80000

Linear gravity

Advanced model

Spread (×ℓ)

0.0010

Spread sets the standard deviation of the Gaussian perturbation (as a fraction of ℓ, the pendulum string length) used to place the three initial points around a chosen location (Random triple or click). Larger values spread them farther apart; very large values may be softly clamped to keep r < 0.95ℓ.

Zoom

1.50

Lyapunov Y

Series: λ(t) — finite-time Lyapunov

Avg of 3 pairwise separations