Calculation
来自Big Physics
late Middle English: via Old French from late Latin calculatio(n- ), from the verb calculare (see calculate).
wiktionary
From Middle English calculation, borrowed from Latin calculatio, calculationis. Morphologically calculate + -ion
etymonline
calculation (n.)
late 14c., "art, manner, or practice of computing by numbers," also "the process of making a horoscope," from Late Latin calculationem (nominative calculatio) "a computation, calculation, reckoning," noun of action from past-participle stem of calculare "to reckon, compute," from Latin calculus "reckoning, account," originally "pebble used in counting," diminutive of calx (genitive calcis) "limestone" (see chalk (n.)). From early 15c. as "the result of reckoning, the solution for a problem."
