Galvagni Figures & Reid Figures for Heptiamonds
A heptiamond is a figure made of seven equilateral triangles joined
edge to edge.
A Galvagni figure is a figure that can be tiled by a polyform
in more than one way—a kind of self-compatibility figure.
A Reid figure is a Galvagni figure without holes.
All of the heptiamond Galvagni figures
and most of the Reid figures
were found by
Dr. Michael Reid
of the University of Central Florida.
Back to Galvagni Compatibility
Col. George Sicherman