The Grouping
Modeled · numerical
A finite bundle stretches and folds under the selected numerical rule.
Audio + visual orientation
What this instrument depicts
This finite numerical simulation advances a sampled bundle of nearby initial conditions through the same billiard. In the displayed run, the circular scatterer stretches and folds the bundle; without it, the group remains a translated segment. Filament length and spread are finite-run display measures, not Lyapunov exponents, entropy measurements, or proof of behavior for every orbit.
How to use + read it
Set the number of shots and muzzle spread, toggle Dispersion, then select Fire. Read filament length and group spread relative to their initial values, along with the tightest-regroup note. Compare scatterer-on and scatterer-off runs from the reset state.