parametric variable

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• Parametric equalization — Parametric equalizer (or parametric EQ ) is an electronic multi band variable equalizer device used in sound recording and live sound reproduction with Public Address systems ( PA systems ). Parametric equalization devices allow audio engineers… …   Wikipedia

• Parametric determinism — refers to a Marxist interpretation of the course of history formulated by Prof. Ernest Mandel, and it could be viewed as one variant of Marx s historical materialism or as a philosophy of history. In an article critical of the Analytical Marxism… …   Wikipedia

• Parametric oscillator — A parametric oscillator is a simple harmonic oscillator whose parameters (its resonance frequency omega and damping eta) vary in time in a defined wayAnother intuitive way of understanding a parametric oscillator is as follows: a parametric… …   Wikipedia

• Variable — A variable (pronEng|ˈvɛərɪəbl) is an attribute of a physical or an abstract system which may change its value while it is under observation. Examples include the height of a child, the temperature across a state, or the input to a function. This… …   Wikipedia

• Parametric derivative — In calculus, a parametric derivative is a derivative that is taken when both the x and y variables (traditionally independent and dependent, respectively) depend on an independent third variable t , usually thought of as time .For example,… …   Wikipedia

• paramètric — pa|ra|mè|tric Mot Pla Adjectiu variable …   Diccionari Català-Català

• parametric — pærÉ™ metrɪk adj. of a parameter, of a factor, of a variable that changes according to the circumstances …   English contemporary dictionary

• Optical parametric amplifier — An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification process. Contents 1 Optical parametric generation (OPG) 2 Optical parametric amplification… …   Wikipedia

• Optical parametric oscillator — Infrared optical parametric oscillator An optical parametric oscillator (OPO) is a parametric oscillator which oscillates at optical frequencies. It converts an input laser wave (called pump ) into two output waves of lower frequency (ωs,ωi) by… …   Wikipedia

• Statistical parametric mapping — or SPM is a statistical technique for examining differences in brain activity recorded during functional neuroimaging experiments using neuroimaging technologies such as fMRI or PET. It may also refer to a specific piece of software created by… …   Wikipedia

• Statistical parametric mapping — Cartographie statistique paramétrique La cartographie statistique paramétrique plus connue sous sa désignation anglophone statistical parametric mapping ou SPM est une méthode d analyse statistique employée en imagerie cérébrale. Le terme SPM est …   Wikipédia en Français