dual element

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• Dual impedance — and dual network are terms used in electronic network analysis. The dual of an impedance is its algebraic inverse . Note that and are the duals of each other, that is, they are reciprocal. For this reason the dual impedance is also called the… …   Wikipedia

• dual — dual, duale [ dɥal; dyal ] adj. • 1948; du bas lat. dualis « deux » 1 ♦ Log., math. Se dit de propriétés qui sont par deux et qui présentent un caractère de réciprocité. Équation, expression duale, qui se déduit d une équation ou d une expression …   Encyclopédie Universelle

• Dual front — is a design concept which allows a device to have two distinctive sides, one for each function. It is most commonly used in camera phones. Advantages The main advantage of using a dual fronted device is the enhanced ease of use by having… …   Wikipedia

• Dual space — In mathematics, any vector space, V, has a corresponding dual vector space (or just dual space for short) consisting of all linear functionals on V. Dual vector spaces defined on finite dimensional vector spaces can be used for defining tensors… …   Wikipedia

• Dual polyhedron — The dual of a cube is an octahedron, shown here with vertices at the cube face centers …   Wikipedia

• Dual-band blade antenna — Contents 1 Introduction 2 Theory 2.1 Monopoles 2.1.1 Blade Antennas 2.2 Slot Antennas …   Wikipedia

• Dual number — For dual grammatical number found in some languages, see Dual (grammatical number). In linear algebra, the dual numbers extend the real numbers by adjoining one new element ε with the property ε2 = 0 (ε is nilpotent). The collection of dual… …   Wikipedia

• Dual modular redundant — A machine which is Dual Modular Redundant has duplicated elements which work in parallel to provide one form of redundancy. A typical example is a complex computer system which has duplicated nodes, so that should one node fail, another is ready… …   Wikipedia

• Dual topologique — Pour les articles homonymes, voir Dualité (mathématiques) et Dualité. Sommaire 1 Définition 2 Topologies duales 2.1 …   Wikipédia en Français

• Dual abelian variety — In mathematics, a dual abelian variety can be defined from an abelian variety A, defined over a field K. Contents 1 Definition 2 History 3 Dual isogeny (elliptic curve case) …   Wikipedia

• Élément premier — Idéal premier Richard Dedekind 1831 1916 formalisateur du concept d idéal Un idéal premier est un concept associé à la théorie des anneaux en mathématiques et plus précisément en algèbre. Un idéal d un anneau commutatif unitaire est dit premier… …   Wikipédia en Français