foursixand2 Posted July 29, 2008 Posted July 29, 2008 square and hexagon are two. what are the other three?
Royston Posted July 29, 2008 Posted July 29, 2008 (edited) http://en.wikipedia.org/wiki/Lattice_(group) Edited July 29, 2008 by dave fixed link
foursixand2 Posted July 30, 2008 Author Posted July 30, 2008 so the two d lattices are basically variants of triangles and squares, making the hexagonal/equaliteraltriangle lattice the most unique one, being the only 2D lattice based on a triangle. thanks for the assistance goodfellows.
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