6-set Venn diagram made of only triangles, devised by Jeremy J Carroll (see <a rel="nofollow" class="external free" href="http://www.hpl.hp.com/techreports/2000/HPL-2000-73.pdf">http://www.hpl.hp.com/techreports/2000/HPL-2000-73.pdf</a> ). Coordinates of vertices are from <a rel="nofollow" class="external free" href="http://sue.csc.uvic.ca/~cos/venn/VennTriangleEJC.html">http://sue.csc.uvic.ca/~cos/venn/VennTriangleEJC.html</a> .
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