Spherics (sometimes spelled sphaerics or sphaerica) is a term used in the history of mathematics for historical works on spherical geometry,[1][2] exemplified by the Spherics (Ancient Greek: τὰ σφαιρικάtá sphairiká), a treatise by the Hellenistic mathematician Theodosius (2nd or early 1st century BC),[3] and another treatise of the same title by Menelaus of Alexandria (c. 100 AD).[4]
^Berggren, J. L. (1986), "Spherics in the Islamic world", Episodes in the Mathematics of Medieval Islam, New York: Springer, pp. 157–188, doi:10.1007/978-1-4612-4608-4_6, ISBN 9781461246084
^Berggren, J. L. (1991), "The relation of Greek spherics to early Greek astronomy", in Bowen, Alan C. (ed.), Science and Philosophy in Classical Greece, Garland, pp. 227–248
^Sidoli, Nathan; Saito, Ken (August 2009), "The role of geometrical construction in Theodosius's Spherics", Archive for History of Exact Sciences, 63 (6): 581–609, doi:10.1007/s00407-009-0045-2
^Papadopoulos, Athanase (2022), "Menelaus' Spherics in Greek and Arabic mathematics", Handbook of the History and Philosophy of Mathematical Practice, Springer International Publishing, pp. 1–43, doi:10.1007/978-3-030-19071-2_109-1, ISBN 9783030190712
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