(sıfat) çift, iki, ikili

listen to the pronunciation of (sıfat) çift, iki, ikili
Türkisch - Englisch
dual
Of an item that is one of a pair, the other item in the pair
Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces

The octahedron is the dual of the cube.

Characterized by having two (usually equivalent) components
dual number The grammatical number of a noun marking two of something (as in singular, dual, plural), sometimes referring to two of anything (a couple of, exactly two of), or a chirality-marked pair (as in left and right, as with gloves or shoes) or in some languages as a discourse marker, "between you and me". A few languages display trial number
Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space
{a} expressing the number 2, second
consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure"
having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R W Emerson; "every episode has its double and treble meaning"-Frederick Harrison
{s} of or pertaining to two; made up of two parts, twofold, double
Double
a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek"
in Greek
double, as in: I can remember when a dual-speed CD-ROM reader was the best you could buy
Pertaining to grammatical number (as in singular and plural), referring to two of something, such as a pair of shoes, in the context of the singular, plural and in some languages, trial grammatical number. Modern Arabic displays a dual number, as did Homeric Greek
Dual means having two parts, functions, or aspects. his dual role as head of the party and head of state Rob may be entitled to dual nationality. having two of something or two parts dual role/purpose/function (dualis, from duo )
Another mathematical program with the property that its objective is always a bound on the original mathematical program, called the primal Suppose the dual is Min{F(y): y in Y} Then, F(y) >= f(x) for all feasible x in the primal and all y in Y This immediately implies that if the primal is feasible, the dual cannot be unbounded, and vice versa: if the dual is feasible, the primal cannot be unbounded It also implies that if the dual is unbounded, the primal must be infeasible (and vice versa) A dual provides a sufficiency test for optimality, for if feasible x and y can be found such that f(x)=F(y), it follows that x is optimal in the primal and y is optimal in the dual Weak duality is when this is all that can be guaranteed Strong duality is when an optimal solution to one problem ensures the existence of an optimal solution to the other and that their optimal objective values are equal There are particular duals of significance
(sıfat) çift, iki, ikili
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