Pendulum tip in 2D plane above three magnets at triangle vertices, with linear gravity-restoring force --- conservative (no damping) 2-DOF Hamiltonian chaos. The damped version has the famous fractal basin boundaries; the undamped version sweeps the energy surface chaotically. Velocity-Verlet (symplectic) integration. Output: x(t).
Standard analysis sees: rich, high-entropy values; smooth / autocorrelated; long-range memory (persistent); low-complexity (predictable, not noise-like); volatility-clustering (bursty); multifractal. The atlas finds no named structure, but the source is distinctively extreme on Moiré:moire_invariance_breadth (+3.1z) — beyond what the standard bank predicts for it. It sits beside Hénon-Heiles in the atlas (standard-bank rank 29) — a neighbor conventional features miss.
Moiré:moire_invariance_breadth | +3.1z | bank-miss 1.3σ |
Bispectrum:coupling_frequency_centroid | +2.0z | bank-miss 2.1σ |
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| Nearest neighbor | Distance | |
|---|---|---|
| Hénon-Heiles | 2.73 | cross-domain |
| FPUT N=16 | 2.80 | cross-domain |
| Chua's Circuit | 2.85 | cross-domain |
Ammann-Beenker (Octagonal) › Ammann-Beenker (Octagonal):convergent_resonance | rank 4/298 | 0.8883 |
Bispectrum › Bispectrum:coupling_frequency_centroid | rank 5/298 | 0.6301 |
Catch24 › Catch24:CO_Embed2_Dist_tau_d_expfit_meandiff | rank 2/298 | 50.7824 |
Catch24 › Catch24:FC_LocalSimple_mean3_stderr | rank 294/298 | 0.0123 |
Hodge–Laplacian › Hodge–Laplacian:curl_div_ratio | rank 2/298 | 5.9458 |
Hodge–Laplacian › Hodge–Laplacian:solenoidal_fraction | rank 2/298 | 0.9971 |
H² × ℝ (Thurston) › H² × ℝ (Thurston):hyperbolic_triangle_area | rank 294/298 | 0.0002 |
Hölder Regularity › Hölder Regularity:hurst_exponent | rank 1/298 | 0.9689 |
Hölder Regularity › Hölder Regularity:increment_autocorrelation | rank 2/298 | 0.9998 |
Hölder Regularity › Hölder Regularity:holder_min | rank 5/298 | 0.9211 |
Klein Bottle › Klein Bottle:orientation_coherence | rank 2/298 | 0.9976 |
Laplacian › Laplacian:gradient_sign_persistence | rank 2/298 | 0.9975 |
Moiré › Moiré:moire_invariance_breadth | rank 2/298 | 0.0387 |
Multifractal Spectrum › Multifractal Spectrum:hurst_estimate | rank 1/298 | 0.9604 |
Möbius-S³ › Möbius-S³:hopf_fiber_coherence | rank 4/298 | 0.8037 |
Navier-Stokes › Navier-Stokes:intermittency_autocorr | rank 2/298 | 0.9998 |
Spectral Analysis › Spectral Analysis:spectral_r2 | rank 4/298 | 0.9662 |
Symplectic › Symplectic:flux_sign_persistence | rank 5/298 | 283.7253 |
Ulam Spiral (Square) › Ulam Spiral (Square):radon_anisotropy | rank 2/298 | 0.0418 |
Visibility Graph › Visibility Graph:nvg_hvg_reach_divergence | rank 2/298 | 0.9970 |
Wavelet Cascade › Wavelet Cascade:scale_gini_dispersion | rank 295/298 | 0.0075 |
p-Variation › p-Variation:increment_persistence | rank 1/298 | 0.9999 |
p-Variation › p-Variation:volatility_clustering | rank 1/298 | 0.9998 |
p-Variation › p-Variation:var_p2 | rank 294/298 | 0.0000 |
p-Variation › p-Variation:variation_index | rank 295/298 | 1.0005 |