Entropy (disambiguation)

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Contents 1 Thermodynamics 2 Information and computer science 3 Mathematics 4 Music 5 Modern culture 6 Other usage

Entropy is a measure of the unavailability of a system’s energy to do work.

Entropy may also refer to:

[edit] Thermodynamics

• Entropy (classical thermodynamics), the macroscopic approach to thermodynamic entropy
• Entropy (statistical thermodynamics), the microscopic approach to thermodynamic entropy
• Gibbs entropy, statistical entropy of a thermodynamic system
  • Boltzmann entropy, an approximation to Gibbs entropy
  • Tsallis entropy, a generalization of Boltzmann-Gibbs entropy
• von Neumann entropy, entropy of a quantum-mechanical system

[edit] Information and computer science

• Information entropy (Shannon entropy), a measure of the amount of information contained in a message
• Entropy encoding, data compression strategies
• Rényi entropy, a family of diversity measures used to define fractal dimensions
• Entropy (anonymous data store), a computer network designed to be resistant to censorship
• Entropy (computing), an indicator of the number of random bits available to seed cryptography systems
• Entropy (package manager), a Sabayon Linux package manager

[edit] Mathematics

• Kolmogorov–Sinai entropy, the rate of information generation by a measure-preserving dynamical system
• Topological entropy, a measure of exponential growth in the number of distinguishable orbits of a dynamical system

[edit] Music

• Entropy (album), an album by Anathallo and Javelins
• Entropy (Hip Hop Reconstruction from the Ground up), a hip-hop suite by DJ Shadow and the Groove Robbers
• Entropy ry, a student organization for electronic music at Helsinki University of Technology
• "Entropy", a song by Bad Religion on Against the Grain
• "Entropy", a song by VNV Nation on Matter + Form
• "Entropy", a song by Moxy Früvous on The 'b' Album
• "Entropy", a song by MC Hawking

[edit] Modern culture

• Entropy (board game)
• "Entropy" (Buffy episode)
• Entropy (film), a 1999 film by Phil Joanou
• Entropy (2006 film), an independent film shot in Wisconsin
• "Entropy", a 1960 short story by Thomas Pynchon

[edit] Other usage

• Entropy (anesthesiology), a measure of a patient's cortical function
• Entropy (package manager), a Sabayon Linux package manager