# Infinitesimal Sentence Examples

- Good and evil, right and wrong, become
**infinitesimal**, ephemeral matters. - In mechanics we are specially concerned with the theory of
**infinitesimal**displacements. - It thus appears that an
**infinitesimal**rotation is of the nature of a localized vector, and is subject in all respects to the same mathematical Jaws as a force, conceived as acting on a rigid body. - Let us conceive the zone in question to be divided into
**infinitesimal**rings of equal area. - In the notation of the integral calculus, this area is equal to f x o udx; but the notation is inconvenient, since it implies a division into
**infinitesimal**elements, which is not essential to the idea of an area. - Discussions of the approximate calculation of definite integrals will be found in works on the
**infinitesimal**calculus; see e.g. - The abundant vintage of that year drew his attention to the defective methods in use for estimating the cubical contents of vessels, and his essay on the subject (Nova Stereometria Doliorum, Linz, 1615) entitles him to rank among those who prepared the discovery of the
**infinitesimal**calculus. - In the pursuit of this inquiry he rashly invaded other departments of science, and much of the Common Place Book is occupied with a polemic, as vigorous as it is ignorant, against the fundamental conceptions of the
**infinitesimal**calculus. - The acreage devoted to any other crop is practically
**infinitesimal**, though in the eastern part more attention is paid to fruit-growing than perhaps in any other part of South Wales. - In 1883 he was chosen to succeed Henry Smith in the Savilian chair of geometry at Oxford, and there he produced his theory of reciprocants, largely by the aid of his "method of
**infinitesimal**variation." - If AB, AC represent
**infinitesimal**rotations about intersecting axes, the consequent displacement of any point 0 in the plane BAC will be at right angles to this plane, and will be represented by twice the sum of the areas OAB, OAC, taken with proper signs. - While still an undergraduate he formed a league with John Herschel and Charles Babbage, to conduct the famous struggle of "d-ism versus dot-age," which ended in the introduction into Cambridge of the continental notation in the
**infinitesimal**calculus to the exclusion of the fluxional notation of Sir Isaac Newton. - The advantages it can offer to its host are, however,
**infinitesimal**when compared with the injury it does it. - The former was professor of mathematics at Bologna, and published, among other works, a treatise on the
**infinitesimal**calculus. - He at once took a leading position in the mathematical teaching of the university, and published treatises on the Di f ferential calculus (in 1848) and the
**Infinitesimal**calculus (4 vols., 1852-1860), which for long were the recognized textbooks there. - Roberval was one of those mathematicians who, just before the invention of the
**infinitesimal**calculus, occupied their attention with problems which are only soluble, or can be most easily solved, by some method involving limits or, and in the solution of which accordingly the calculus is always now employed.**infinitesimals** - For the subjects of this general heading see the articles ALGEBRA, UNIVERSAL; GROUPS, THEORY OF;
**INFINITESIMAL**CALCULUS; NUMBER; QUATERNIONS; VECTOR ANALYSIS. - For the subjects of this heading see the articles DIFFERENTIAL EQUATIONS; FOURIER'S SERIES; CONTINUED FRACTIONS; FUNCTION; FUNCTION OF REAL VARIABLES; FUNCTION COMPLEX; GROUPS, THEORY OF;
**INFINITESIMAL**CALCULUS; MAXIMA AND MINIMA; SERIES; SPHERICAL HARMONICS; TRIGONOMETRY; VARIATIONS, CALCULUS OF. - Perfectly pure distilled sea-water dissociates, to an
**infinitesimal**degree, into hydrogen (H) and hydroxyl (HO) ions, so that one litre of such water contains 1 X 10 7, or 1 part of a gram-molecule of either hydr010,000,000 gen or hydroxyl (a gramme-molecule of hydrogen is 2 grammes, or of hydroxyl 17 grammes). - When the applied electromotive force is diminished by an
**infinitesimal**amount, the cell produces a current in the usual direction, and the ordinary chemical changes occur. - The available energy A is the amount of external work obtainable by an
**infinitesimal**, reversible change in the system which occurs at a constant temperature T. - For such functions remain unaltered when each root receives the same
**infinitesimal**increment h; but writing x-h for x causes ao, a1, a 2 a3,... - General aspects of the subject are considered under Mensuration; Vector Analysis;
**Infinitesimal**Calculus. - The idea is utilized in the elementary consideration :of a differential coefficient; and its importation into the treatment of certain functions as continuous is therefore properly associated with the
**infinitesimal**calculus. - Reference may also be made to the special articles mentioned at the commencement of the present article, as well as to the articles on Differences, Calculus Of;
**Infinitesimal**Calculus; Interpolation; Vector Analysis. - The discoveries of Johann Kepler and Bonaventura Cavalieri were the foundation upon which Sir Isaac Newton and Gottfried Wilhelm Leibnitz erected that wonderful edifice, the
**Infinitesimal**Calculus. - The component vibrations at P due to the successive zones are thus nearly equal in amplitude and opposite in phase (the phase of each corresponding to that of the
**infinitesimal**circle midway between the boundaries), and the series which we have to sum is one in which the terms are alternately opposite in sign and, while at first nearly constant in numerical magnitude, gradually diminish to zero. - When, in order to apply Huygens's principle, the wave is supposed to be broken up, the phase is the same at every element of the surface of resolution which lies upon a line perpendicular to the plane of reference, and thus the effect of the whole line, or rather
**infinitesimal**strip, is related in a constant manner to that of the element which lies O in the plane of reference, and may be considered to be represented thereby. - The same method of representation is applicable to spherical waves, issuing from a point, if the radius of curvature be large; for, although there is variation of phase along the length of the
**infinitesimal**strip, the whole effect depends practically upon that of the central parts where the phase is sensibly constant.' - Other works of Cournot's were Traite elementaire de la theorie des fonctions et du calcul
**infinitesimal**(1841); Exposition de la theorie des chances et des probabilLites (1843); De l'origine et des limites de la correspondance entre l'algebre et la geometrie (1847); Traite de l'enchainement des idees fondamentales dans les sciences et dans l'histoire (1861); and Revue somma.ire des doctrines economiques (1877). - Hence in any
**infinitesimal**part of the fluid the circulation is zero round every small plane curve passing through the vortex line; and consequently the circulation round any curve drawn on the surface of a vortex filament is zero. - He therefore employed the corresponding expression for a cycle of
**infinitesimal**range dt at the temperature t in which the work dW obtainable from a quantity of heat H would be represented by the equation dW =HF'(t)dt, where F'(t) is the derived function of F(t), or dF(t)/dt, and represents the work obtainable per unit of heat per degree fall of temperature at a temperature t. - With this definition of temperature 0, if the heat H is measured in work units, the expression of Carnot's principle for an
**infinitesimal**cycle of range do reduces to the simple form dW/d9=H/0. - Of temperature (o' - o") is small, the figure ABCD may be regarded as a parallelogram, and its area W as equal to the rectangle BE XEC. This is accurately true in the limit when (0' - 0") is
**infinitesimal**, but in practice it is necessary to measure specific heats, &c., over finite ranges of temperature, and the error involved is generally negligible if the range does not exceed a few degrees. - But the line of constant energy on - the diagram does not represent the path of the transformation, unless it be supposed to be effected in a series of
**infinitesimal**steps between each of which the substance is restored to an equilibrium state. - He contributed two memoirs to the Philosophical Transactions, one, "Logometria," which discusses the calculation of logarithms and certain applications of the
**infinitesimal**calculus, the other, a "Description of the great fiery meteor seen on March 6th, 1716." - A minute fraction is always separating out of the water, and as a prodigious length of time may be accepted for the accomplishment of all the chemical and physical processes in the deep sea, we must take account of the gradual accumulation of even this
**infinitesimal**precipitation. - Are very large, then, for all states except an
**infinitesimal**fraction of the whole number, the values of u, v, w lie within ranges such that (i) the values of u (and similarly of v, w) are distributed among the s molecules of the first kind according to the law of trial and error; and similarly of course for the molecules of other kinds: (ii) E2mu2 E2mv 2 E2mw2 ?2aie12 s S s s s s - s E s' S' s' - - s' ' See Jeans, Dynamical Theory of Gases (1904), ch. - A simple approximate calculation of the pressure exerted by a gas on its containing vessel can be made by supposing that the molecules are so small in comparison with their distances apart that they may be treated as of
**infinitesimal**size. - He also showed that the roots of a cubic equation can be derived by means of the
**infinitesimal**calculus. - Beyond this point, analytical methods must be adopted, and the student passes to trigonometry and the
**infinitesimal**calculus. - Made up of a number of successive elements, so that the analytical treatment involves the ideas and the methods of the
**infinitesimal**calculus. - Then let us heat both ice and solution through the
**infinitesimal**temperature range dT to the freezing point T of the solvent, melt the ice by the application of an amount of heat L, which measures its latent heat of fusion, and allow the solvent so formed to enter the solution reversibly through a semi-permeable wall into an engine cylinder, doing an amount of work Pdv. - In these solid solutions, as in aqueous ones, the ratios in which the different chemical substances are present are not fixed or definite, but vary from case to case, not per saltum as between definite chemical compounds, but by
**infinitesimal**steps. - Pascal also distinguished himself by his skill in the
**infinitesimal**calculus, then in the embryonic form of Cavalieri's method of indivisibles. - From the use of gold and silver as a medium of exchange, it followed that they should approximate in all nations to a common degree of fineness; and though this is not uniform even in coins, yet the proportion of alloy in silver, and of carats alloy to carats fine in gold, has been reduced to
**infinitesimal**differences in the bullion of commerce, and is a prime element of value even in gold and silver plate, jewelry, and other articles of manufacture. - Linlithgowshire yields nearly three-fourths of the total output, Midlothian produces nearly one-fourth, a small quantity is obtained from Lanarkshire, and there is an
**infinitesimal**supply from Sutherland. - Originally they existed in
**infinitesimal**fragments, infinite in number and devoid of arrangement. - 9 is not, strictly j speaking, fixed, but admits of
**infinitesimal**displacement, when ever the directions of the three links are concurrent (or A - When two legs of my level were on the shore and the third on the ice, and the sights were directed over the latter, a rise or fall of the ice of an almost
**infinitesimal**amount made a difference of several feet on a tree across the pond.