| 单词 | calculus |
| 释义 | calculus (once / 4786 pages) 1n 2n 3n Calculus is a way of using math to study changes in a system. Moral calculus, on the other hand, is a way of measuring morals and ethics, like choosing the lesser of two evils. After an apple bonked him on the head, Newton used calculus to fine-tune his Law of Gravity. Don’t break that law, or you’ll fall right off the planet. Today, if you take a calculus class, you’ve probably already taken geometry and trigonometry. Well done. You’ll measure changes between infinitesimally small points or the area of a curve. In the medical world, a calculus is a hard, crusty mass like a kidney stone; or tartar on a tooth. In Latin, calculus means "small pebble used for counting." WORD FAMILYcalculus: calculi, calculous, calculuses USAGE EXAMPLESBut the calculus is different for top-ranked private schools with an abundance of qualified applicants. Washington Post(Dec 21, 2016) Critics worry about slippery slopes and evolving calculus. Washington Times(Dec 21, 2016) However, neuromuscular training changed that calculus, he continued, dropping the likely incidence of the injuries to about 1.5 percent of the athletes. New York Times(Mar 19, 2014) 1 n the branch of mathematics that is concerned with limits and with the differentiation and integration of functions 2Syn|Hypo|Hyper infinitesimal calculus analysis a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation differential calculus, method of fluxionsthe part of calculus that deals with the variation of a function with respect to changes in the independent variable (or variables) by means of the concepts of derivative and differential integral calculusthe part of calculus that deals with integration and its application in the solution of differential equations and in determining areas or volumes etc. calculus of variationsthe calculus of maxima and minima of definite integrals Fourier analysis, harmonic analysisanalysis of a periodic function into a sum of simple sinusoidal components pure mathematics the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness n a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body 3renal calculi can be very painful Syn|Hypo|Hyper concretion bladder stone, cystolith a calculus formed in the bladder enterolitha calculus occurring in the intestines bilestone, gallstonea calculus formed in the gall bladder or its ducts kidney stone, nephrolith, renal calculus, urinary calculusa calculus formed in the kidney ptyalithcalculus in a salivary gland salivary calculus, sialolitha stone formed in the salivary gland urolitha urinary stone rock, stone a lump or mass of hard consolidated mineral matter n an incrustation that forms on the teeth and gums Syn|Hyper tartar, tophus crust, encrustation, incrustation a hard outer layer that covers something |
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