Featured 5 / 6 · Structure
Frieze patterns
A triangular motif repeats along a decorative border. Instead of storing an endless row of copies, retain the motif, a transformation and the connection from one result to the next input.
Selected result
What remains connected
What is checked, and where this example stops
Actual exposed-site mapping preserves the triangle’s shared joints. Two glides and one translation have equal coordinates. An inverse returns coordinates without reviving source identity.
The window illustration displays five selected cells. Repeat support remains open; this does not run an autonomous infinite expander or classify every frieze group.