an equation is a mathematical formula that expresses the equality of two expressions, by connecting them with the equals sign =. The word equation and...
32 KB (4,237 words) - 05:28, 25 June 2024
In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions...
30 KB (3,650 words) - 19:15, 11 July 2024
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...
74 KB (10,232 words) - 01:58, 6 July 2024
mathematics and physics, the heat equation is a certain partial differential equation. Solutions of the heat equation are sometimes known as caloric functions...
58 KB (9,836 words) - 16:22, 19 July 2024
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...
52 KB (6,460 words) - 20:12, 19 July 2024
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...
13 KB (2,137 words) - 07:41, 10 July 2024
The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves...
60 KB (10,069 words) - 13:13, 26 July 2024
In mathematics and physics, Laplace's equation is a second-order partial differential equation named after Pierre-Simon Laplace, who first studied its...
32 KB (4,943 words) - 16:26, 10 June 2024
The Navier–Stokes equations (/nævˈjeɪ stoʊks/ nav-YAY STOHKS) are partial differential equations which describe the motion of viscous fluid substances...
97 KB (15,330 words) - 02:39, 18 July 2024
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...
928 bytes (128 words) - 10:46, 20 March 2024
In mathematics, a partial differential equation (PDE) is an equation which computes a function between various partial derivatives of a multivariable...
49 KB (6,849 words) - 16:29, 8 July 2024
In mathematics, a Diophantine equation is an equation, typically a polynomial equation in two or more unknowns with integer coefficients, for which only...
33 KB (4,801 words) - 17:18, 13 June 2024
In algebra, a cubic equation in one variable is an equation of the form a x 3 + b x 2 + c x + d = 0 {\displaystyle ax^{3}+bx^{2}+cx+d=0} in which a is...
68 KB (10,291 words) - 19:33, 19 July 2024
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...
16 KB (2,240 words) - 22:28, 20 March 2024
In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928. In its free form, or including...
78 KB (12,971 words) - 00:26, 16 July 2024
The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy...
73 KB (8,490 words) - 17:50, 13 July 2024
Nonlinear system (redirect from Non-linear equation)
system of equations, which is a set of simultaneous equations in which the unknowns (or the unknown functions in the case of differential equations) appear...
21 KB (2,597 words) - 23:02, 6 April 2024
A continuity equation or transport equation is an equation that describes the transport of some quantity. It is particularly simple and powerful when...
31 KB (4,750 words) - 10:36, 11 June 2024
physical chemistry, the Arrhenius equation is a formula for the temperature dependence of reaction rates. The equation was proposed by Svante Arrhenius...
21 KB (2,788 words) - 21:20, 24 April 2024
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...
14 KB (2,162 words) - 02:58, 9 October 2023
field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution of matter within it. The equations were...
34 KB (5,096 words) - 09:51, 5 June 2024
A Bellman equation, named after Richard E. Bellman, is a necessary condition for optimality associated with the mathematical optimization method known...
27 KB (3,996 words) - 10:10, 14 June 2024
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas. The reactant entities are given...
24 KB (3,494 words) - 01:01, 10 June 2024
Klein–Gordon equation (Klein–Fock–Gordon equation or sometimes Klein–Gordon–Fock equation) is a relativistic wave equation, related to the Schrödinger equation. It...
38 KB (6,540 words) - 14:05, 14 May 2024
differential equation is a differential equation that is defined by a linear polynomial in the unknown function and its derivatives, that is an equation of the...
30 KB (4,757 words) - 15:43, 11 July 2024
The fundamental accounting equation, also called the balance sheet equation, is the foundation for the double-entry bookkeeping system and the cornerstone...
10 KB (837 words) - 03:40, 22 July 2024
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...
55 KB (7,476 words) - 10:18, 6 June 2024
same equation can be called the advection–diffusion equation, drift–diffusion equation, or (generic) scalar transport equation. The general equation in...
23 KB (3,123 words) - 23:31, 5 June 2024
wave equation, the diffusion equation, and the Schrödinger equation for a free particle. In optics, the Helmholtz equation is the wave equation for the...
19 KB (2,965 words) - 03:09, 8 July 2024
In mathematics, an ordinary differential equation (ODE) is a differential equation (DE) dependent on only a single independent variable. As with other...
44 KB (4,890 words) - 23:09, 18 July 2024