quadrature


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quad·ra·ture

 (kwŏd′rə-cho͝or′)
n.
1. The process of making something square.
2. Mathematics The process of constructing a square equal in area to a given surface.
3. Astronomy A configuration in which the position of one celestial body is 90° from another celestial body as measured from a third body, typically Earth.

quadrature

(ˈkwɒdrətʃə)
n
1. (Mathematics) maths the process of determining a square having an area equal to that of a given figure or surface
2. the process of making square or dividing into squares
3. (Astronomy) astronomy a configuration in which two celestial bodies, usually the sun and the moon or a planet, form an angle of 90° with a third body, usually the earth
4. (Electronics) electronics the relationship between two waves that are 90° out of phase

quad•ra•ture

(ˈkwɒd rə tʃər, -ˌtʃʊər)

n.
1. the act of squaring.
2.
a. the act or process of finding a square equal in area to a given surface, esp. a surface bounded by a curve.
b. a definite integral.
3.
a. the situation of two heavenly bodies when their longitudes differ by 90°.
b. either of the two points in the orbit of a body, as the moon, midway between the syzygies.
[1545–55; < Latin quadrātūra =quadrāt(us), past participle of quadrāre (see quadrate) + -ūra -ure]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quadrature - the construction of a square having the same area as some other figure
construction - drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem; "the assignment was to make a construction that could be used in proving the Pythagorean theorem"
Translations
직교

quadrature

[ˈkwɒdrətʃəʳ] Ncuadratura f

quadrature

n (Math, Astron) → Quadratur f
References in classic literature ?
Thine now is all this World, thy vertue hath won What thy hands builded not, thy Wisdom gain'd With odds what Warr hath lost, and fully aveng'd Our foile in Heav'n; here thou shalt Monarch reign, There didst not; there let him still Victor sway, As Battel hath adjudg'd, from this new World Retiring, by his own doom alienated, And henceforth Monarchie with thee divide Of all things, parted by th' Empyreal bounds, His Quadrature, from thy Orbicular World, Or trie thee now more dang'rous to his Throne.
Thus, the accumulative error of the closed type quadrature, [Q.sup.2.sub.n](f) of Eq.
and made the approximation of the integral by applying standard quadrature rule meant for approximate evaluation of real definite integral(1).
Quadrature amplitude modulation has a major application in various digital radio communications and data communications.
We had present a numerical method for solving nonlinear Volterra integral equations, based on Newton-Kontorovich quadrature methods where we had choose as a quadrature method the adaptive trapezoidal method and it was compared with Simpson method which was used by [7], as we had show that the choose of the odd term [[phi].sub.k](x(j - 1/2)) will effect on the approximate solution.
The matching moment property in Theorem 1.4 can also be interpreted as a matrix formulation of a generalized Gauss quadrature for the approximation of quasi-definite linear functionals; see [45, 49].
Last but not least, Phidgets has also made a low-cost quadrature encoder, bringing closed-loop control to your motor systems for only $10 USD.
In the paper, the quadrature booster is modeled using two real voltage sources.
Experimental results on ETAF and quadrature oscillator responses are verified by PSPICE simulation and hardware test.
In order to integrate an arbitrary function h(x) over the element [Q.sup.e], the Gauss-Lobatto-Legendre (GLL) quadrature formula is used: