Look up: Dual

1. 
   dual
   [adj] - a grammatical number category referring to two items or units (as opposed to one item (singular) or more than one item (plural))
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. 
   dual
   (mathematics) Every field of mathematics has a different meaning of dual. Loosely, where there is some binary symmetry of a theory, the image of what you look at normally under this symmetry is referred to as the dual of your normal things. In linear algebra for example, for any vector space V, over a field, F, the vector space of linear maps from...
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3. 
   dual
   a spacecraft design whereby the main body of the satellite is spun to provide altitude stabilisation,and the antenna assembly is despun by means of a motor and bearing system in order to continually direct the antenna earthward Category: Electrical engineering and energy • a transport system in which in one mode the vehicle operates under manual control,and in the second mode it operat...
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. 
   Dual
   Definition (undergraduate level) - Let V be a vector space over F . The dual of V , written V * , is the set of all linear maps f : V → F . The operations of addition and scalar multiplication are defined in the obvious pointwise manner. <br /> - The dual of a set is the set of continuous linear maps f : E → C . Note that f is c ...
   Found on http://thesaurus.maths.org/mmkb/entry.ht
   
   
5. 
   Dual
   Du'al adjective [ Latin dualis , from duo two. See Two .] Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek. « Here you have one half of our dual truth.» Tyndall.
   Found on http://www.encyclo.co.uk/webster/D/127
   
   
6. 
   dual
   adjective 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`
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
7. 
   dual
   duple adjective 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`
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
8. 
   Dual
   A `dual` is a pair or a grouping of two. `Dual` is also the name for many things: * For several meanings of `dual` in mathematics, see duality (mathematics) * In some languages, in addition to the singular and plural numbers there is also a `dual` number, which is used when exactly two people or things are meant. * A dual troll or secondary account on a message board for a number of typically neferious purposes used for internet trolls * A simul...
   Found on http://en.wikipedia.org/wiki/Dual
   
   
9. 
   Dual
   • (a.) Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek.
   Found on http://thinkexist.com/dictionary/meaning
   
   
10. 
    Dual
    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 ve...
    Found on http://glossary.computing.society.inform
    
    
11. 
    dual
    • The dual of a solid is formed by joining the centers of adjacent faces with straight lines. In the resulting dual solid, each vertex of the dual corresponds to a face on the original, each face on the dual to an original vertex, while the edges match, one for one. • The dual of a tesse...
    Found on http://www.daviddarling.info/encyclopedi