References
A.B. Chace (tr. and ed.), The Rhind Mathematical Papyrus, Mathematical Association of America, 1927.
A. Erman, The Literature of the Ancient Egyptians, Mathematical Association of America, 1927.
A. Gardiner, Egyptian Grammar, Oxford, 1957 (third edition), pp. 196-197.
Aristotle, Metaphysics 981b 20-25; as 1.A1, p.195.
G.J Toomer, 'Mathematics and Astronomy', in J.R. Harris (ed.), The Legacy of Egypt, Oxford, 1971, pp. 37-40, 45.
Herodotus, History, II, 109; tr. A. D. Godley, Heinemann, 1920.
Plato, Phaedrus, 274 cd; tr. H. Cary, Bell & Daldy, 1872.
Proclus, On Euclid, I; tr. I. Thomas, Greek Mathematical Works I, Heinemann, 1939, pp. 145-147.