form in two variables

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• Binary quadratic form — In mathematics, a binary quadratic form is a quadratic form in two variables. More concretely, it is a homogeneous polynomial of degree 2 in two variables where a, b, c are the coefficients. Properties of binary quadratic forms depend in an… …   Wikipedia

• Two-factor authentication — (TFA, T FA or 2FA) is an approach to authentication which requires the presentation of two different kinds of evidence that someone is who they say they are. It is a part of the broader family of multi factor authentication, which is a defense in …   Wikipedia

• Form — may mean: *Form, the shape, appearance, or configuration, of an object *Form (furniture), a long seat or bench without a back *Form (education), a class, set or group of students *Form, a shallow depression or flattened nest of grass used by a… …   Wikipedia

• Two-port network — A Two Port Network (or four terminal network or quadripole) is an electrical circuit or device with two pairs of terminals (i.e., the circuit connects two dipoles). Two terminals constitute a port if they satisfy the essential requirement known… …   Wikipedia

• Two-moment decision models — Mean variance analysis redirects here. For mean variance portfolio theory, see Modern portfolio theory or Mutual fund separation theorem. In decision theory, economics, and finance, a two moment decision model is a model that describes or… …   Wikipedia

• Two envelopes problem — The two envelopes problem is a puzzle or paradox within the subjectivistic interpretation of probability theory; more specifically within Bayesian decision theory. This is still an open problem among the subjectivists as no consensus has been… …   Wikipedia

• Two-element Boolean algebra — In mathematics and abstract algebra, the two element Boolean algebra is the Boolean algebra whose underlying set (or universe or carrier ) B is the Boolean domain. The elements of the Boolean domain are 1 and 0 by convention, so that B ={0,1}.… …   Wikipedia

• form — /fɔm / (say fawm) noun 1. definite shape; external shape or appearance considered apart from colour or material; configuration. 2. the shape of a thing or person. 3. a body, especially that of a human being. 4. something that gives or determines… …  

• Two-line elements — Orbital parameter for the SGP4 model (or one of the SGP8, SDP4, SDP8 models) are determined for many thousands of space objects by NORAD and are freely distributed on the Internet in the form of TLEs by Celestrak (http://celestrak.com/). Here the …   Wikipedia

• Canonical form (Boolean algebra) — In Boolean algebra, any Boolean function can be expressed in a canonical form using the dual concepts of minterms and maxterms. Minterms are called products because they are the logical AND of a set of variables, and maxterms are called sums… …   Wikipedia

• Quadratic form — In mathematics, a quadratic form is a homogeneous polynomial of degree two in a number of variables. For example, is a quadratic form in the variables x and y. Quadratic forms occupy a central place in various branches of mathematics, including… …   Wikipedia