COVARIANT

covariant

(adjective) changing so that interrelations with another variable quantity or set of quantities remain unchanged

Source: WordNet® 3.1


Etymology

Adjective

covariant (not comparable)

(category theory) (Of a functor) which preserves composition.

(object-oriented programming) Using or relating to covariance.

Noun

covariant (plural covariants)

(algebra) A bihomogeneous polynomial in x, y, ... and the coefficients of some homogeneous form in x, y, ... that is invariant under some group of linear transformations.

(algebra) The variety defined by a covariant.

Source: Wiktionary


Co*va"ri*ant (k-v"r-ant), n. (Higher Alg.)

Definition: A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

31 January 2025

DISPERSION

(noun) the act of dispersing or diffusing something; “the dispersion of the troops”; “the diffusion of knowledge”


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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