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fredag 30. januar 2015

The combinatorics of the face

Okay, not exactly any map or graph, but I was a little bored this afternoon and found some overhead transparencies. Then I remembered from my childhood those times I drew several versions of noses, eyes and mouths on different papers, just to mix them together into all sort of faces. Well here you can watch the result. Or to say it in a cooler way - this is the combinatorics of the face. How many faces do you see? You could just say eight. Or 23.


Illustration: Torstein S. Thronsen


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