Ovals, arguably roundish, can do 4 sets well in 2D.
Right. I don't find that clear anymore. Seems more like a puzzle to me.
The 3D one works somewhat well if the spheres are translucent and animated.
https://en.wikipedia.org/wiki/Venn_diagram#Extensions_to_hig...
Right. I don't find that clear anymore. Seems more like a puzzle to me.
The 3D one works somewhat well if the spheres are translucent and animated.
https://en.wikipedia.org/wiki/Venn_diagram#Extensions_to_hig...