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Line 53: == A2 lattice and circle packings == [[File:Compound 3 triangular tilings.png\|thumb\|The A{{sup sub\|\|2}} lattice as three triangular tilings: {{CDD\|node_1\|split1\|branch}} + {{CDD\|node\|split1\|branch_10lu}} + {{CDD\|node\|split1\|branch_01ld}}]] The [[vertex arrangement]] of the triangular tiling is called an ~~[[A2 lattice\|~~A<sub>2</sub> lattice]].<ref>http://www.math.rwth-aachen.de/~Gabriele.Nebe/LATTICES/A2.html</ref> It is the 2-dimensional case of a [[simplectic honeycomb]]. The A{{sup sub\|\|2}} lattice (also called A{{sup sub\|3\|2}}) can be constructed by the union of all three A<sub>2</sub> lattices, and equivalent to the A<sub>2</sub> lattice.

Triangular tiling: Difference between revisions