Entropy (disambiguation)

Template:Wiktionarypar Entropy (Greek: en = in and tropos = way/means) can have one of several meanings:

In natural sciences and mathematics:

Thermodynamic entropy in the context of chemistry, physics, and thermodynamics, is a measure of the amount of energy in a physical system which cannot be used to do mechanical work.
- In this sense, entropy is often misused to indicate the second law of thermodynamics, the idea that disorder tends to increase, a statement about entropy.
Information entropy in the context of probability theory, statistics, and information theory, measures the amount of information that is contained in a random variable or other unknown quantity.
In the theory of metric spaces in mathematics, entropy numbers are used to measure the dimension of sets (and in particular fractals).
Entropy is a measure of biodiversity in the study of biological ecology.
Maximum entropy probability distribution

In computer science:

Entropy (anonymous data store) is a decentralized, peer-to-peer communication network designed to be resistant to censorship.
Entropy is the name of a Renderman-Interface compliant 3D Renderer that was developed by Berkely software company Exluna until further development was halted as part of the settlement of a patent lawsuit filed by Pixar. Exluna were subsequently acquired by Nvidia Corporation to develop a hardware-accelerated renderer that is able to use Nvidia GPU's to accelerate the rendering process.
In the sense of Information entropy, above; used to refer to a nondeterministic source of bits for use by random number generators.
Entropy encoding

In music:

Entropy is a song on The 'b' Album by Moxy Früvous
Entropy is a song on Against the Grain by Bad Religion
Entropy is a song on Matter+Form by VNV Nation
Entropy is the name of the split EP released by the two bands, Anathallo and Javelins, by Potential Getaway Driver in December of 2005. The split was only released on vinyl with a limit of 300 copies and consists of one song from each band, both entitled "Entropy". Both the sleeve and vinyl are screenprinted.
Entropy Inc. Productions is a rap-based production company led by rapper Panda Man
Entropy is the name of a non-profit student organization for the advancement of electronic music at the Helsinki University of Technology
Entropy is the name of a rock band based in Glasgow, Scotland.
Entropy is the name of a rock band based in Warren, New Jersey.
Entropy is the title of a song by MC Hawking.

In literature:

Entropy (linguistics).
Organisational entropy has been introduced by Martin J. Klein (1953) and is used in the context of organisation theory, organisational studies, and information theory, as a measure of the disorder in the context of operational processes that are conducted in these organisations or in any of their producing entities. The terminus applies as well to the communications between such organisations, which perform operational processes in a sequential workshare or any other split .
Entropy (board game) refers to two board games known under the name Entropy, invented by Eric Solomon (1977) or Augustine Carreno (1994), respectively.
Entropy is the name of a student newspaper from the University of South Australia.
Entropy is a supervillian in the game Freedom Force vs. the Third Reich.
Entropy is also a sword used by Haer-Dalis in the game Baldurs Gate 2.
Entropy is a supervillan in the Marvel Comics Universe.
Entropy is the name of a 1999 movie by Phil Joanou.