Sunday, November 23, 2008

Symmetric Venn Diagram

This was the start of a small industry of making symmetric Venn diagrams, which Branko Grunbaum found in 1975. I have been working on making a mathematical coloring book (first edition should be - needs to be - done by the holidays, so more details on that soon). I've been trying to making some symmetric Venn diagrams for it, this is a by-product of my first attempts:

1 comment:

MarcDBrodsky said...


How would you do a symmetric 3-Venn of ellipses? Then given the 3-Venn of circles is not a general solution for area proportionality how would you perturb the 3-Venn of ellipses to provide an area proportional solution with the strict condition of connectedness?