Saturday, April 17, 2010

[ievvrceb] Binary tree in nested spheres

Drawing a perfect binary tree in three dimensions:  Put the leaves evenly spaced on the outer sphere.  One concentric shell in, the immediate parents; grandparents go another shell in.

The shell with 8 nodes is arranged a cube or twisted cube.  The next one in is a tetrahedron.  Can these two be nested in a nice symmetric way?

A binary tree grows faster than there is space, in any number of dimensions, resulting in a crowded depiction at the leaves.  But three dimensions does better than two.

Inspired by single elimination tournament brackets.

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