Calculator
λογιστής
Calculator (λογιστής) signifies a keeper of accounts in general, but was also used in the signification of a teacher of arithmetic (Isid. Orig. 1.3; Dig. 38, tit. 1, s. 7); whence Martial (10.62, 4) classes him with the notarius or writing-master; but the teacher of arithmetic held a high position among teachers (cf. Cod. Just. 10, tit. 52, s. 4; Becker-Göll, Gallus, ii. p. 101; Marquardt, Röm. Privatleben, p. 95). The name was derived from calculi, which were commonly used in teaching arithmetic, and also in reckoning in general. [ABACUS] Among the Greeks the λογιστὴς and γραμματιστὴς appear to have been usually the same person.
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.