Calculus Cal"cu*lus, n.; pl. {Calculi}. [L, calculus. See {Calculate}, and {Calcule}.] 1. (Med.) Any solid concretion, formed in any part of the body, but most frequent in the organs that act as reservoirs, and in the passages connected with them; as, biliary calculi; urinary calculi, etc. [1913 Webster]

2. (Math.) A method of computation; any process of reasoning by the use of symbols; any branch of mathematics that may involve calculation. [1913 Webster]

{Barycentric calculus}, a method of treating geometry by defining a point as the center of gravity of certain other points to which co["e]fficients or weights are ascribed.

{Calculus of functions}, that branch of mathematics which treats of the forms of functions that shall satisfy given conditions.

{Calculus of operations}, that branch of mathematical logic that treats of all operations that satisfy given conditions.

{Calculus of probabilities}, the science that treats of the computation of the probabilities of events, or the application of numbers to chance.

{Calculus of variations}, a branch of mathematics in which the laws of dependence which bind the variable quantities together are themselves subject to change.

{Differential calculus}, a method of investigating mathematical questions by using the ratio of certain indefinitely small quantities called differentials. The problems are primarily of this form: to find how the change in some variable quantity alters at each instant the value of a quantity dependent upon it.

{Exponential calculus}, that part of algebra which treats of exponents.

{Imaginary calculus}, a method of investigating the relations of real or imaginary quantities by the use of the imaginary symbols and quantities of algebra.

{Integral calculus}, a method which in the reverse of the differential, the primary object of which is to learn from the known ratio of the indefinitely small changes of two or more magnitudes, the relation of the magnitudes themselves, or, in other words, from having the differential of an algebraic expression to find the expression itself. [1913 Webster]

The Collaborative International Dictionary of English. 2000.


Look at other dictionaries:

  • calculus — 1660s, from L. calculus reckoning, account, originally pebble used as a reckoning counter, dim. of calx (gen. calcis) limestone (see CHALK (Cf. chalk)). Modern mathematical sense is a shortening of differential calculus. Also used from 1732 to… …   Etymology dictionary

  • calculus — [kal′kyo͞o ləs, kal′kyələs] n. pl. calculi [kal′kyəlī΄] or calculuses [L: see CALCULATE] 1. any abnormal stony mass or deposit formed in the body, as in a kidney or gallbladder or on teeth: see TARTAR (sense 2) 2. Math. a) any system of… …   English World dictionary

  • Calcŭlus — (lat.), 1) Stein; 2) Stein im Bretspiel; 3) das kleinste Gewicht, ungefähr = 1/2 Ceratium; 4) Berechnung, s. Calcul; 5) die Stimme im Votiren; daher C. Minervae (eigentlich Ἀϑηνᾶς ψῆφος) der weiße Stein bei Stimmengleichheit im Areopag zu Athen,… …   Pierer's Universal-Lexikon

  • Calcŭlus — (lat.), Stein, z. B. zum Spiel, zu Abstimmungen (s. Kalkul), zum Rechnen etc.; daher Error in calculo, Rechnungsfehler. C Minervae, Stein der Minerva, d. h. die bei Stimmengleichheit zu jemandes gunsten den Ausschlag gebende Stimme, von dem… …   Meyers Großes Konversations-Lexikon

  • Calculus — Calcŭlus (lat.), Stein, Rechenstein, Rechnung; error in calculo, Rechenfehler …   Kleines Konversations-Lexikon

  • Calculus — Calculus, Stein, in der patholog. Anatomie Name verschiedener Concretionen, als Harn , Gallen , Gicht und Venenstein …   Herders Conversations-Lexikon

  • calculus — ► NOUN (pl. calculi or calculuses) 1) the branch of mathematics concerned with finding derivatives and integrals of functions by methods based on the summation of infinitesimal differences. 2) Medicine a stone formed by deposition of minerals in… …   English terms dictionary

  • Calculus — This article is about the branch of mathematics. For other uses, see Calculus (disambiguation). Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus  Derivative Change of variables …   Wikipedia

  • calculus — /kal kyeuh leuhs/, n., pl. calculi / luy /, calculuses. 1. Math. a method of calculation, esp. one of several highly systematic methods of treating problems by a special system of algebraic notations, as differential or integral calculus. 2.… …   Universalium

  • Calculus — A stone, as in the urinary tract. Also, the calcium salt deposits on the teeth. The word calculus in Latin means a pebble. Pebbles were once used for counting, from which came the mathematical field of calculus. A urinary calculus is a pebble in… …   Medical dictionary