Definitions for

**"Dual"**Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek.

Two polyhedra are duals if the vertices of one can be put into a one-to-one correspondence with the centers of the faces of the other.

two parts Contractors estimated it would take two years to complete the dual carriageway between the new towns. dually (adv), duality (n)

Bounded to EIGRP protocol, DUAL is an algorithm maintaining a topology up to date et creating route table.

Diffusing Update Algorithm. Convergence algorithm used in Enhanced IGRP that provides loop-free operation at every instant throughout a route computation. Allows routers involved in a topology change to synchronize at the same time, while not involving routers that are unaffected by the change. See also Enhanced IGRP.

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

Dual is a 2005 independent western drama film directed by Steven R. Monroe and written by and starring Michael Worth.

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.

Capacity A legal theory, used to circumvent Worker's Compensation laws, that allows an injured employee to sue his or her employer directly in court.

In category theory, an abstract branch of mathematics, the dual category or opposite category Cop of a category C is the category formed by reversing all the morphisms of C. That is, we take Cop to be the category with objects that are those of C, but with the morphisms from X to Y in Cop being the morphisms from Y to X in C. Hence, the dual category of the dual category of a category is the original category itself.

Federalism: A system of government where the states governed the people directly and the national government concerned itself with issues relating to foreign affairs.

a private affair

Dual is a brand name of audio and video electronics.