Epsilon
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| Greek alphabet | |
|---|---|
| Α α Alpha | Β β Beta |
| Γ γ Gamma | Δ δ Delta |
| Ε ε Epsilon | Ζ ζ Zeta |
| Η η Eta | Θ θ Theta |
| Ι ι Iota | Κ κ Kappa |
| Λ λ Lambda | Μ μ Mu |
| Ν ν Nu | Ξ ξ Xi |
| Ο ο Omicron | Π π Pi |
| Ρ ρ Rho | Σ σ Sigma |
| Τ τ Tau | Υ υ Upsilon |
| Φ φ Phi | Χ χ Chi |
| Ψ ψ Psi | Ω ω Omega |
| obsolete letters | |
| [[Digamma|Template:Polytonic Digamma]] | [[San (letter)|Template:Polytonic San]] |
| [[Qoppa|Template:Polytonic Qoppa]] | [[Sampi|Template:Polytonic Sampi]] |
Epsilon is the lowest and least intelligent caste in Aldous Huxley's dystopic satire Brave New World.
The lower-case letter ε is used as the symbol for:
- In mathematics, a small positive infinitesimal quantity, usually denoted ε very small quantity.
- In set theory, the limit ordinal of the sequence <math>\omega,\omega^{\omega},\omega^{\omega^{\omega}},\dots<math>.
- In computing, the precision of a numeric data type.
- In computer science, the empty string.
- In mathematics, the Levi-Civita symbol.
- In mathematics, set membership (often written ∈ instead of ε), especially in older texts.
- The late mathematician Paul Erdos also used the term "epsilons" to refer to children (Hoffman 1998, p. 4).
- In physics, the permittivity of a medium.
- In automata theory, a transition that involves no shifting of an input symbol.
- In astronomy, the fifth brightest (usually) star in a constellation. See Bayer designation.
There is a company that has this name:
- Epsilon S.A - studio company
Letters that arose from Epsilon include the Roman E.
Epsilon in Malaysian Pale is the name of the second solo album released by Tangerine Dream leader Edgar Froese in 1975.
Epsilon is also an Australian light-powered female-looking robot that fought Pluto in an episode of Astro Boy.
Epsilon III is the planet which is orbited by the spacestation Babylon 5, in the science fiction TV series Babylon 5.ca:Èpsilon da:Epsilon de:Epsilon el:Έψιλον es:Épsilon ja:Ε nl:Epsilon pl:Epsilon pt:Ε fi:Epsilon sv:Epsilon