(T. MU.)
[1] Eisenlohr, Ein math. Handbuch d. alten Ägypter, übers. u. erklärt (Leipzig, 1877); Rodet, Bull. de la Soc. Math. de France, vi. pp. 139-149.
[2] H. Hankel, Zur Gesch. d. Math. im Alterthum, &c., chap, v (Leipzig, 1874); M. Cantor, Vorlesungen über Gesch. d. Math. i. (Leipzig, 1880); Tannery, Mém. de la Soc., &c., à Bordeaux; Allman, in Hermathena.
[3] Tannery. Bull. des sc. math. [2], x. pp. 213-226.
[4] In modern trigonometrical notation, 1 + sec θ:tan θ::1:tan ½θ.
[5] Tannery, “Sur la mesure du cercle d’Archimède,” in Mém....Bordeaux[2], iv. pp. 313-339; Menge, Des Archimedes Kreismessung (Coblenz, 1874).
[6] De Morgan, in Penny Cyclop, xix. p. 186.
[7] Kern, Aryabhattíyam (Leiden, 1874), trans. by Rodet (Paris,1879).
[8] De Morgan, art. “Quadrature of the Circle,” in English Cyclop.; Glaisher, Mess. of Math. ii. pp. 119-128, iii. pp. 27-46; de Haan, Nieuw Archief v. Wisk. i. pp. 70-86, 206-211.