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Longman Dictionary of Contemporary English
coefficient
noun
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
gini
▪ Thus, the higher the Gini coefficient, the more unequal is the distribution of national income.
▪ Both types of inequality are measured using the Gini coefficients for land and income distribution.
■ NOUN
correlation
▪ To measure associations, Pearson's correlation coefficient was used.
▪ For example, suppose that the correlation coefficient is zero.
▪ The relationships between variables were evaluated by the simple correlation coefficient and a multiple regression analysis.
▪ This particular measure is the square of the correlation coefficient which has been used throughout Chapters 4 and 5.
▪ Portfolios P 1a to P 5a are varied by making changes in the correlation coefficients.
Correlation studies were performed using linear regression and Spearman's correlation coefficients were calculated.
▪ So beta merely uses the correlation coefficient to weight the ratio of the risks of the security and the market.
regression
▪ Therefore, the regression coefficient is often considered as a measure of the effect of the independent variable on the dependent variable.
▪ Many authors find a challenge in t and tests and regression coefficients.
▪ For each patient, p was calculated according to the value of each variable and its respective regression coefficient.
▪ A scatterplot is needed to assess the linearity assumption underlying each correlation or regression coefficient between pairs of quantitative variables.
■ VERB
calculate
▪ In particular, we need to calculate the objective-row coefficient of any non-basic variable.
use
▪ So beta merely uses the correlation coefficient to weight the ratio of the risks of the security and the market.
▪ Statistical analysis was performed using correlation coefficients, t tests, and Mann-Whitney U test.
▪ Both types of inequality are measured using the Gini coefficients for land and income distribution.
▪ Phases of multiply measured reflections were combined using the phase probability coefficients.
EXAMPLES FROM CORPUS
▪ Correlation coefficients were calculated using the Spearman's non-parametric coefficient.
▪ If the plant's behaviour depends continuously on a single coefficient, then binary chopping is a safe standard approach.
▪ Take, for example, the coefficient estimated on B t in the equations: this is an estimate of.
▪ The coefficient is expected to take a negative sign.
▪ The coefficient of variation within assays was 8.2% and between assays 12.8%.
▪ The relative magnitudes of the coefficients of the power series vary with the sort of vibration.
▪ This particular measure is the square of the correlation coefficient which has been used throughout Chapters 4 and 5.
The Collaborative International Dictionary
Coefficient

Coefficient \Co`ef*fi"cient\, a. Co["o]perating; acting together to produce an effect. Co`ef*fi"cient*ly, adv.

Coefficient

Coefficient \Co`ef*fi"cient\, n.

  1. That which unites in action with something else to produce the same effect.

  2. [Cf. F. coefficient.] (Math.) A number or letter put before a letter or quantity, known or unknown, to show how many times the latter is to be taken; as, 6x; bx; here 6 and b are coefficients of x.

  3. (Physics) A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction.

    Arbitrary coefficient (Math.), a literal coefficient placed arbitrarily in an algebraic expression, the value of the coefficient being afterwards determined by the conditions of the problem.

Douglas Harper's Etymology Dictionary
coefficient

also co-efficient, c.1600, from co- + efficient. Probably influenced by Modern Latin coefficiens, which was used in mathematics in 16c., introduced by French mathematician François Viète (1540-1603). As an adjective from 1660s.

Wiktionary
coefficient

a. cooperating n. 1 (context mathematics English) A constant by which an algebraic term is multiply. 2 A number, value or item that serves as a measure of some property or characteristic.

WordNet
coefficient

n. a constant number that serves as a measure of some property or characteristic

Wikipedia
Coefficient (disambiguation)

Coefficient could have one of the following meanings:

Coefficient

In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series or any expression; it is usually a number, but in any case does not involve any variable of the expression. For instance in


7x − 3xy + 1.5 + y
the first two terms respectively have the coefficients 7 and −3. The third term 1.5 is a constant. The final term does not have any explicitly written coefficient, but is considered to have coefficient 1, since multiplying by that factor would not change the term. Often coefficients are numbers as in this example, although they could be parameters of the problem or any expression in these parameters. In such a case one must clarify which symbols represent variables and which ones represent parameters. Following Descartes, the variables are often denoted by , , ..., and the parameters by , , , ..., but it is not always the case. For example, if is considered as a parameter in the above expression, the coefficient of is , and the constant coefficient is .

When one writes


ax + bx + c
, it is generally supposed that is the only variable and that , and are parameters; thus the constant coefficient is in this case.

Similarly, any polynomial in one variable can be written as


$$a_k x^k + \dotsb + a_1 x^1 + a_0$$
for some integer k, where $a_k, \dotsc, a_1, a_0$ are coefficients; to allow this kind of expression in all cases one must allow introducing terms with 0 as coefficient. For the largest i with a ≠ 0 (if any), a is called the leading coefficient of the polynomial. So for example the leading coefficient of the polynomial


 4x + x + 2x

is 4.

Specific coefficients arise in mathematical identities, such as the binomial theorem which involves binomial coefficients; these particular coefficients are tabulated in Pascal's triangle.

Usage examples of "coefficient".

In the existing setup the necessary heat cannot be supplied through the reactor walls because of the low heat transfer coefficient available for a fluidized system.

Through the social development of capital, the mechanisms of modern sovereignty-the processes of coding, overcoding, and recoding that imposed a transcendent order over a bounded and segmented social terrain-are progressively replaced by an axiomatic: that is, a set of equations and relationships that determines and combines variables and coefficients immediately and equally across various terrains without reference to prior and fixed definitions or terms.

Boy ascribed a low coefficient of irritant potential to Miss Stern, regarding her as a typical young American intellectual woman seeking a cause to justify her existence, until marriage, career, or artsy hobbies defused her.

This coefficient of resemblance between husband and wife in regard to phthisis is about the same as the correlation of resemblance between husband and wife for eye color, stature, longevity, general health, truthfulness, tone of voice, and many other characters.

In using a range of metals and polymers, the coefficient of inharmonicity is proportional to the modulus of elasticity divided by the square of the density.

This is the coefficient for most physical and mental characters: it is the coefficient for such pathological traits as deafness and insanity, which are obviously due in most cases to inheritance rather than infection.

Some of the reaction coefficients are highly dependent on the concentrations and distributions of certain microchemical agencies.

Lagrange surfaces and expansion coefficients all we can really do is guess.

I made some of the coefficients large so that they were hard to solve.

The coefficients indicated in red are modifiers that would be fixed for a given species, but the dominant factors are the general ones shown in green.

Stig's indifferent to what he chops down, knowing he can fell anything with that Swedish Bit and custom Handle, a Hickory or an Alder, an Oak or a Peach, it matters little to Stig, the Equations are the same but for the Arboreal Coefficients, Details of importance to a Beaver are absorb'd in a single brutal downswing, after which, all is over.

All might yet have been well had the General been content to let the scientists get on with their work while he concentrated on saluting smartness, the coefficient of reflection of barrack floors, and similar matters of military importance.

The Curie law, according to which the coefficient of magnetization of a body feebly magnetized varies in inverse ratio to the absolute temperature, is a remarkably simple law.

His eyes fell upon the small computer which had searched in the ship's microfiles for data on compounds with boiling points below such-and-such, with absorption coefficients in certain ranges, which had an inhibitive effect upon the formation of certain other substances.

The hardest one somebody gave me was the binomial coefficient of x10 in (1 + x)20.