Elementary Proof, that Eight Perimeters, of the Regular inscribed Polygon of Twenty Sides, exceed Twenty-five Diameters of the Circle

By William R. Hamilton

Hamilton's paper

Elementary Proof, that Eight Perimeters, of the Regular inscribed Polygon of Twenty Sides, exceed Twenty-five Diameters of the Circle

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Links:

• Sir William Rowan Hamilton (1805-1865)
• History of Mathematics