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y the use of symbols; any branch of mathematics that may involve calculation. Barycentric calculus, a method of treating geometry by defining a point as the center of gravity of certain other points to which coëfficients or weights are ascribed. -- Calculus of functions, that branch of mathematics which treats of the…

Of or pertaining to the center of gravity. See Barycentric calculus, under Calculus.

A gallstone, or biliary calculus. See Biliary. E. Darwin.

Relating or belonging to bile; conveying bile; as, biliary acids; biliary ducts. Biliary calculus (Med.), a gallstone, or a concretion formed in the gall bladder or its duct.

See Calculus.

Of the nature of a calculus; like stone; gritty; as, a calculous concretion. Sir T. Browne.

times called theorem of Pappus, also, incorrectly, Guldinus's properties. See Barycentric calculus, under Calculus.

by chronic lead poisoning. -- Renal colic, the severe pain produced by the passage of a calculus from the kidney through the ureter. -- Wind colic. See Intestinal colic, above.

together, by congelation, condensation, coagulation, induration, etc.; a clot; a lump; a calculus. Accidental ossifications or deposits of phosphates of lime in certain organs . . . are called osseous concretions. Dunglison.

A urinary calculus.

pening cysts; esp., the operation of cutting into the bladder, as for the extraction of a calculus.

otion or leverage; producing effects by such differences; said of mechanism. Differential calculus. (Math.) See under Calculus. -- Differential coefficient, the limit of the ratio of the increment of a function of a variable to the increment of the variable itself, when these increments are made indefinitely small. -…

portion between any two planes that are separated and indefinitely small distance. In the calculus, element is sometimes used as synonymous with differential.

ng to exponents; involving variable exponents; as, an exponential expression; exponential calculus; an exponential function. Exponential curve, a curve whose nature is defined by means of an exponential equation. -- Exponential equation, an equation which contains an exponential quantity, or in which the unknown quant…

A variable quantity, considered as increasing or diminishing; - - called, in the modern calculus, the function or integral.

ity or rate of change. Its results are the same as those of the differential and integral calculus, from which it differs little except in notation and logical method.

; -- opposed to transcendental function. -- Arbitrary function. See under Arbitrary. -- Calculus of functions. See under Calculus. -- Carnot's function (Thermo-dynamics), a relation between the amount of heat given off by a source of heat, and the work which can be done by it. It is approximately equal to the mechan…

A concretion, or calculus, formed in the gall bladder or biliary passages. See Calculus, n., 1.

A pebble, or small fragment of stone; a calculus.

hou add to all the griefs I suffer Imaginary ills and fancied tortures Addison. Imaginary calculus See under Calculus. -- Imaginary expression or quantity (Alg.), an algebraic expression which involves the impossible operation of taking the square root of a negative quantity; as, sq. root-9, a + b sq. root-1. -- Imag…