# 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 classic literature ?
This equation does not give us the value of the unknown factor but gives us a ratio between two unknowns.
"The expression v zero, which you see in that equation, is the speed which the projectile will have on leaving the atmosphere."
The world looks like a multiplication-table, or a mathematical equation, which, turn it how you will, balances itself.
All love is mathematically just, as much as the two sides of an algebraic equation. The good man has absolute good, which like fire turns every thing to its own nature, so that you cannot do him any harm; but as the royal armies sent against Napoleon, when he approached cast down their colors and from enemies became friends, so disasters of all kinds, as sickness, offence, poverty, prove benefactors:--
In this case the matter was simplified by Brunton's intelligence being quite first-rate, so that it was unnecessary to make any allowance for the personal equation, as the astronomers have dubbed it.
There is no limit to your heroism; but you forget the human equation in the pluckiest of the plucky.
Time was a negligible factor in the equation of life--it was all the same to Tarzan if he reached the west coast in a month or a year or three years.
Ten Equations to Explain the Mysteries of Modern Astrophysics: From Information and Chaos Theory to Ghost Particles and Gravitational Waves
The application form (AIDS) is expressed in a system of instantaneous equations, which represents the expenditure shares on the required quantities of the commodity from the countries studied as dependent variables, a set of explanatory variables determined in the export prices of these countries and the real income available for the quantities to be imported from these countries.
The first terms on the right-hand side of equations (1.1)-(1.2) are responsible for the depreciation of the capital/labour stock.
The RPSM was produced as an efficient method for definite worths of coefficients of the power series solution for fuzzy differential equations (Arqub, 2013).
The aim was to assess the performance of existing GFR estimating equations in South Asians, and modify the existing equations or develop a new equation for use in this population.

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