languages may have subtly different meanings; for example, in French an équation is defined as containing one or more variables, while in English, any well-formed...
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equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought. An equation...
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The Schrödinger equation is a partial differential equation that governs the wave function of a quantum-mechanical system.: 1–2 Its discovery was a significant...
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The Navier–Stokes equations (/nævˈjeɪ stoʊks/ nav-YAY STOHKS) are partial differential equations which describe the motion of viscous fluid substances...
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In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions...
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consiste dans une certaine relation entre leurs branches, exprimée par une Équation donnée.", Histoire de l'Académie Royale des Sciences: 196–215. Kamke, E...
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In mathematics, a quadratic equation (from Latin quadratus 'square') is an equation that can be rearranged in standard form as a x 2 + b x + c = 0 , {\displaystyle...
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mathematics and physics, the heat equation is a certain partial differential equation. Solutions of the heat equation are sometimes known as caloric functions...
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In mathematics, a partial differential equation (PDE) is an equation which computes a function between various partial derivatives of a multivariable...
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field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution of matter within it. The equations were...
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The Roothaan equations are a representation of the Hartree–Fock equation in a non orthonormal basis set which can be of Gaussian-type or Slater-type....
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In mathematics, a Diophantine equation is an equation, typically a polynomial equation in two or more unknowns with integer coefficients, for which only...
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In mathematics, an algebraic equation or polynomial equation is an equation of the form P = 0 {\displaystyle P=0} , where P is a polynomial with coefficients...
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Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form...
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costate equation is related to the state equation used in optimal control. It is also referred to as auxiliary, adjoint, influence, or multiplier equation. It...
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In physics, equations of motion are equations that describe the behavior of a physical system in terms of its motion as a function of time. More specifically...
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up equational in Wiktionary, the free dictionary. Equational may refer to: Equative, a construction in linguistics something pertaining to equations, in...
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équations aux différences partielles linéaires du second ordre," (5 May 1798). "Mémoire sur les séries et sur l'intégration complète d'une équation aux...
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In mathematics, a linear equation is an equation that may be put in the form a 1 x 1 + … + a n x n + b = 0 , {\displaystyle a_{1}x_{1}+\ldots +a_{n}x_{n}+b=0...
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In physics and chemistry, an equation of state is a thermodynamic equation relating state variables, which describe the state of matter under a given...
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The God Equation: The Quest for a Theory of Everything is a popular science book by the futurist and physicist Michio Kaku. The book was initially published...
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The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves...
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In mathematics, an ordinary differential equation (ODE) is a differential equation (DE) dependent on only a single independent variable. As with other...
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"The Equation" is the eighth episode of the first season of the American science fiction drama television series Fringe. The episode follows the Fringe...
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Characteristic equation may refer to: Characteristic equation (calculus), used to solve linear differential equations Characteristic equation, the equation obtained...
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Bernoulli equation may refer to: Bernoulli differential equation Bernoulli's equation, in fluid dynamics Euler–Bernoulli beam equation, in solid mechanics...
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In fluid dynamics, the Euler equations are a set of partial differential equations governing adiabatic and inviscid flow. They are named after Leonhard...
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A Bellman equation, named after Richard E. Bellman, is a necessary condition for optimality associated with the mathematical optimization method known...
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A continuity equation or transport equation is an equation that describes the transport of some quantity. It is particularly simple and powerful when...
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Poisson's equation is an elliptic partial differential equation of broad utility in theoretical physics. For example, the solution to Poisson's equation is the...
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