Cool maths stuff

Interactive tools and visualisations. More topics coming — suggestions welcome on the forum or Discord.

Collatz conjecture

Tools for exploring the Collatz conjecture — hailstone sequences and the base-3 / residue-grid encoding.

Residue grid

Collatz Explainer

Interactive hailstone sequence + base-3 / 12-slot residue grid. Full column walk, real numbers, step-through play.

Tree

Base-4 digit tree

Starts with digits 0 · 1 · 3 · 2; each node spawns the same four. Enable/disable branches so the tree stays manageable.

Sieve

Suffix sieve

Search all integers by trailing base-4 digits. Pure digit machine: prune when a·log₂3 − d dips below zero.