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arc measurement

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  • Arc elasticity — is the elasticity of one variable with respect to another between two given points.The y arc elasticity of x is defined as::E {x,y} = frac{% mbox{ change in } x}{% mbox{ change in } y}where the percentage change is calculated relative to the… …   Wikipedia

  • arc — or electric arc [ärk] n. [ME ark < OFr arc < L arcus, a bow, arch < IE base * arqu , bowed, curved > ARROW] 1. Historical the part of a circle that is the apparent path of a heavenly body above and below the horizon 2. a bowlike… …   English World dictionary

  • Arc length — Determining the length of an irregular arc segment is also called rectification of a curve. Historically, many methods were used for specific curves. The advent of infinitesimal calculus led to a general formula that provides closed form… …   Wikipedia

  • Measurement category — Schematic representation of measurement categories Measurement category a method of classification of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or …   Wikipedia

  • measurement system — Introduction       any of the systems used in the process of associating numbers with physical quantities and phenomena (metrology). Although the concept of weights and measures (measurement) today includes such factors as temperature, luminosity …   Universalium

  • arc — I. noun Etymology: Middle English ark, from Anglo French arc bow, from Latin arcus bow, arch, arc more at arrow Date: 14th century 1. the apparent path described above and below the horizon by a celestial body (as the sun) 2. a. something arched… …   New Collegiate Dictionary

  • Meridian arc — In geodesy, a meridian arc measurement is a highly accurate determination of the distance between two points with the same longitude. Two or more such determinations at different locations then specify the shape of the reference ellipsoid which… …   Wikipedia

  • minute of arc —    see minute2 …   Dictionary of units of measurement

  • Systems of measurement — A system of measurement is a set of units which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce. Scientifically, when later analyzed, some… …   Wikipedia

  • Minute of arc — This article is about geometry. For firearms terminology, see Minute of Angle. A minute of arc, arcminute, or minute of angle (MOA), is a unit of angular measurement equal to one sixtieth (1⁄60) of one degree. In turn, a second of arc or… …   Wikipedia

  • Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

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