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 classic literature ?

And by bringing variously selected historic units (battles, campaigns, periods of war) into such equations, a series of numbers could be obtained in which certain laws should exist and might be discovered.

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zero, which you see in that equation, is the speed which the projectile will have on leaving the atmosphere.

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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.

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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.

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ABSTRACT: We reformulated the Lagrangian density for single fluid by using Caputo's fractional derivative, then from the fractional Euler-Lagrangian equation we obtained the equations that described the motion of single fluid in fractional form.

HAMILTONIAN FORMULATION FOR SINGLE FLUID FLOWS WITH CAPUTO'S DEFINITION

The main body measurements used to predict the weight of dairy cattle are: heart girth, wither height, hip width, body length and hip height with Equations proposed by Heinrichs et al.

Evaluation of body weight prediction equations in growing heifers/ Avaliacao de equacoes de predicao de peso corporal em novilhas em crescimento

ABSTRACT: The aim of this research was to deal with coupled problem of the symmetric regularized long wave equations.

REDUCED DIFFERENTIAL TRANSFORM METHOD FOR COUPLED PROBLEM OF THE SYMMETRIC REGULARIZED LONG WAVE EQUATIONS

Basic Theory of Fractional Differential Equations, 2nd Edition

Before beginning the demonstration, the magician selects a young volunteer from the audience to come on stage and operate an electronic calculator to verify the mathematical correctness of her equations.

The old palindromical equations trick

The added content will include coverage of chemical, mechanical and civil engineering on new equations on section properties, shear and stress, subsurface structural engineering, oil and gas processing equipment operation and steam properties.

United States : Online Engineering Resource Knovel Expands its Interactive Equations Dataset to Cover More than 1,100 across Eight Subject Areas

In the present paper we first state a one-dimensional model of nonlocal and nonlinear elasticity and review recent progress on unidirectional asymptotic wave equations of the model.

Unidirectional wave motion in a nonlocally and nonlinearly elastic medium: the KdV, BBM, and CH equations/Uhesuunaline lainelevi mittelokaalses ja mittelineaarses elastses keskkonnas: KdV, BBM ning CH vorrandid