# 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.
References in periodicals archive ?
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.
Last month, more than 250 teams of high school juniors and seniors met in homes, libraries, and coffee shops from New Hampshire to Delaware to come up with their best mathematical solution to a real-world problem: The efficiency and economic impact of corn-based ethanol.
As an indication of how important it is for us to understand turbulence in fields such as aviation and weather prediction, there is a \$1,000,000 prize on offer for its mathematical solution.
Taylor thought in 1959, understood the so-called nautical triangle before 1560--that is, before the birth of Harriot, who later (1594 onwards) produced a complete mathematical solution, involving original work in conformality, the first known plain and twisted rectifications, inverse exponentials, interpolation, and so on.
Columns six and seven featured the text of a story about some 'researchers' who have come up with a mathematical solution, a formula, which can be used to work out the fright factor in scary movies.
I ask Jim (the person who had initially insisted on finding a mathematical solution to the problem) if he would like to add anything else to the discussion.

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