V=22 E=60 F=40
convex · symmetry *522 · Eisenstein: v7 T=4 (2,0)
Models can be manipulated.
Eisenstein family v7 — red this net, blue ancestors, green descendants, grey cousins; mirror sector below the axis (reflections lumped); dashed ray = the Z-multiples. · family map, from the unit’s point of view