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...

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...

In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions...

consiste dans une certaine relation entre leurs branches, exprimée par une Équation donnée.", Histoire de l'Académie Royale des Sciences: 196–215. Kamke, E...

The Schrödinger equation is a linear partial differential equation that governs the wave function of a quantum-mechanical system.: 1–2  Its discovery was...

The Navier–Stokes equations (/nævˈjeɪ stoʊks/ nav-YAY STOHKS) are partial differential equations which describe the motion of viscous fluid substances...

In algebra, a quadratic equation (from Latin quadratus 'square') is any equation that can be rearranged in standard form as a x 2 + b x + c = 0 , {\displaystyle...

mathematics and physics, the heat equation is a certain partial differential equation. Solutions of the heat equation are sometimes known as caloric functions...

In mathematics, a partial differential equation (PDE) is an equation which computes a function between various partial derivatives of a multivariable...

field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution of matter within it. The equations were...