On Röber's Construction of the Heptagon

By William R. Hamilton

Hamilton's paper

On Röber's Construction of the Heptagon
appeared in the Philosophical Magazine, vol 27 (4th series) (1864), pp. 124-132.

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Hamilton discusses an approximate but extremely accurate geometrical construction of a regular hexagon, due to Friedrich Gottlob Röber, who had suggested that this construction was known to the ancient Egyptians, and employed by them in the building of the temple at Edfu.


D.R. Wilkins
School of Mathematics
Trinity College, Dublin