Has anyone else on this list enjoyed today's Google Banner? It includes:
The celestial sphere
Two Platonic solids
The relationship...
Vertices - Edges + Faces = 2
[This doesn't hold in pathological
cases by the way!]
The Seven-Bridges-of-Konigsberg
problem
A state diagram
An argand diagram
The relationship -1 = e^(i.pi)
Frank King
Cambridge, UK
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