Planar tiling
\(A_2\) Online Tiler
Grow Hat, Turtle, and custom tile patches, or test whether they fill a chosen boundary.
A collection of mathematical investigations
Building structure, learning constraints, and checking what follows. Explore the projects through three connected perspectives.
Start with the essay & interactive Turtle demoExplore tilings, packings, and topology through interactive examples.
Planar tiling
Grow Hat, Turtle, and custom tile patches, or test whether they fill a chosen boundary.
Aperiodic order
Explore thin and thick rhombs on a cut-and-project point set, with live search and backtracking.
Spatial tiling
Build with lattice polyhedra and custom polycubes. Inspect periodic tilings, frontier growth, and the research catalogue.
Substitution
Inspect the Chair44 tile, its markings, and its assembly. Explore rotating orientations in the quaquaversal construction.
Obstruction certificates
Follow the nine-cube cross investigation through geometric constraints, search trees, and checkable certificates.
Finite coronas
Explore finite layers around a tile and the local obstructions that stop a patch from extending.
Hyperbolic geometry
See the Böröczky family in hyperbolic space, then inspect the branches and backtracks of a live search.
Topology
Follow changing strands through a verified sequence of Reidemeister moves, one diagram at a time.
Explore geometric toy models, constrained packings, and models you can build.
Geometric toy models
Explore basic 3D lattice tilings as geometric toy models for crystallography.
Constrained packing
Search for circle arrangements under geometric constraints and inspect how local choices shape the packing.
Packing & structure
Compare published tetrahedron quasicrystals, periodic approximants, and dense packings in an interactive three-dimensional viewer.
Physical models
Rotate and animate tile assemblies, then explore their model descriptions and physical construction details.
Try a broader term, such as tiling, packing, or learning.