# Satisfy

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**Wave equation**— Not to be confused with Wave function. The wave equation is an important second order linear partial differential equation for the description of waves – as they occur in physics – such as sound waves, light waves and water waves. It arises in… …102

**Partial differential equation**— A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …103

**Arrow's impossibility theorem**— In social choice theory, Arrow’s impossibility theorem, the General Possibility Theorem, or Arrow’s paradox, states that, when voters have three or more distinct alternatives (options), no voting system can convert the ranked preferences of… …104

**Hermite polynomials**— In mathematics, the Hermite polynomials are a classical orthogonal polynomial sequence that arise in probability, such as the Edgeworth series; in combinatorics, as an example of an Appell sequence, obeying the umbral calculus; in numerical… …105

**Limit state design**— (LSD) refers to a design methodology used in structural engineering. The methodology is in fact a modernization and rationalization of engineering knowledge which was well established prior to the adoption of LSD. Beyond the concept of a limit… …106

**D-brane**— String theory Superstring theory …107

**Turing degree**— Post s problem redirects here. For the other Post s problem , see Post s correspondence problem. In computer science and mathematical logic the Turing degree or degree of unsolvability of a set of natural numbers measures the level of algorithmic …108

**War artist**— For information about the genre, see War art. A war artist depicts some aspect of war through art; this might be a pictorial record or it might commemorate how war shapes lives. [1] War artists have explored a visual and sensory dimension of war… …109

**Technology roadmap**— The context of product managementThe existence of product managers in the product software industry indicates that software is becoming more commercialized as a standard product. This manager is responsible over the whole line of software… …110

**Complexity of constraint satisfaction**— The complexity of constraint satisfaction is the application of computational complexity theory on constraint satisfaction. It has mainly been studied for discriminating between tractable and intractable classes of constraint satisfaction… …