coefficient

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coefficient

1. Maths
a. a numerical or constant factor in an algebraic term
b. the product of all the factors of a term excluding one or more specified variables
2. Physics a value that relates one physical quantity to another

Coefficient

 

a numerical factor in a literal expression, a known multiplier of an unknown quantity of any degree, or a constant multiplier of a variable quantity. Thus, in the monomial −¾ a2b3 the coefficient is −¾; in the equation x2 + 2px + q = 0 the coefficient of x2 is 1 and the coefficient of x is 2p; and in the formula for the circumference of a circle l = 2πr the coefficient is 2π. In the equation for a straight line y = kx + b, the number k, which expresses the tangent of the angle that the line makes with the Ox axis, is known as the slope. Many of the coefficients in formulas expressing physical laws have special names, for example, the coefficient of friction and the coefficient of light absorption.

coefficient

[¦kō·ə′fish·ənt]
(mathematics)
A factor in a product.
References in periodicals archive ?
There were other combinations of measures that combined simpler ones by a multiplicative factor of two, three, and finally four (the latter was the latest).
This multiplicative factor was used because there was evidence that the population covered by PACE was substantially more expensive than the general Medicare population.