# equation

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## equation

a means of portraying arithmetically the relationship between VARIABLES. For example, the equation: C = 1,000 + 0.9Y suggests a particular relationship between consumer expenditure (C) and disposable income (Y), which would be true for certain values of C and Y (such as 10,000 and 10,000 respectively) but not true of other values of C and Y (such as 6,000 and 10,000 respectively). Equations are generally written with a two-bar equals sign (=), with the value to the left of the sign being equal to the value to the right of the sign. The validity of an equation can be tested statistically by collecting paired observations of the variables involved and testing whether or not these observations conform with the equation formulated. See IDENTITY.
Collins Dictionary of Economics, 4th ed. © C. Pass, B. Lowes, L. Davies 2005
References in periodicals archive ?
Swartzendruber has used Philips  method to get graphical illustration of the mathematical solution for horizontal water function.
The difficulties in the mathematical solution of these equations stipulate problems pertaining to technical implementation of control systems with delays.
The company's system stands apart from rival products because it is able to use a specially created mathematical solution to overcome distortions such as cuts and scars and produce accurate results.
The mathematical solution of (9) as Poisson's equation is known.
LRO is an advanced mathematical solution that accurately forecasts availability and demand.
Physicist Alan Cormack's work in nuclear medicine at Groote Schuur Hospital prompted him to search for a way to estimate the densities of tissues undergoing X-ray treatment; he published a mathematical solution to the problem in 1963, laying the mathematical basis for the computer-assisted tomographic (CAT or CT) scanner.
Based on these ideas, the two found a mathematical solution that described a gait that would not lose any energy during the walk.
(1969), A mathematical solution of a one-dimensional groundwater recharge by spreading, Annali di Geofisica, Vol.
Duff wishes to create a pure mathematical solution to resolve this issue once and for all.
The author hereby suggests a mathematical solution to the motorway problem.
In order to present mathematical solution explicitly, picture is usually the best for it as a picture is worth a thousand words.

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