December 21 – 355
MathMod & Morenaments. A green pseudo torus. The function of pseudo-tori is unknown, but it is highly unlikely that they have a similar function as tori because of their irregular occurrence as well as their amorphous shape. (Rabaey, Lens, Smet & Jansen. Annals of Botany)
Background: A p4 symmetry. Th ep4 symmetry is a tetrahedral symmetry characterized by quarter-turns, 90° rotations. It produces “Pinwheel” patterns.