Reply to Mark N.

Mark N: You're right, what Mark Rankin was referring to is the triangular
graph in the 3x5 plane. It's called triaxial because it can be constructed
with three axes as 120 degrees (3's, 5's and 6/5-5/3's). Three-D graphs
or their planar projections can be constructed as a centered triangular
graph or as a more common rectilinear type with the 7's axis at about
30 degrees. David Doty in his JI Primer, Carter Scholz (including Ji Calc),
Paul Erlich, Erv Wilson in his writings, etc. have all used such
lattices and higher homologs.

--John



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