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'''Spherics''' (sometimes spelled '''sphaerics''' or '''sphaerica''') is a term used in the [[history of mathematics]] for historical works on [[spherical geometry]],<ref>{{citation
| last = Berggren | first = J. L.
| contribution = Spherics in the Islamic world
| doi = 10.1007/978-1-4612-4608-4_6
| isbn = 9781461246084
| pages = 157–188
| publisher = Springer | location = New York
| title = Episodes in the Mathematics of Medieval Islam
| year = 1986}}</ref><ref>{{citation
| last = Berggren | first = J. L.
| editor-last = Bowen | editor-first = Alan C.
| contribution = The relation of Greek spherics to early Greek astronomy
| pages = 227–248
| publisher = Garland
| title = Science and Philosophy in Classical Greece
| year = 1991}}</ref> exemplified by the ''[[Theodosius' Spherics|Spherics]]'' ({{langx|grc|τὰ σφαιρικά}} {{transliteration|grc|tá sphairiká}}), a treatise by the [[Greek mathematics|Hellenistic mathematician]] [[Theodosius of Bithynia|Theodosius]] (2nd or early 1st century BC),<ref>{{citation
| last1 = Sidoli | first1 = Nathan
| last2 = Saito | first2 = Ken
| date = August 2009
| doi = 10.1007/s00407-009-0045-2
| issue = 6
| journal = Archive for History of Exact Sciences
| pages = 581–609
| title = The role of geometrical construction in Theodosius's ''Spherics''
| volume = 63}}</ref> and another treatise of the same title by [[Menelaus of Alexandria]] ({{circa|100 AD}}).<ref>{{citation
| last = Papadopoulos | first = Athanase
| contribution = Menelaus' ''Spherics'' in Greek and Arabic mathematics
| doi = 10.1007/978-3-030-19071-2_109-1
| isbn = 9783030190712
| pages = 1–43
| publisher = Springer International Publishing
| title = Handbook of the History and Philosophy of Mathematical Practice
| year = 2022}}</ref>
==References==
{{reflist}}
[[Category:Spherical geometry]]
[[Category:Classical geometry]]
[[Category:Spherical astronomy]]
{{geometry-stub}}