Epsilon

Encyclopedia : E : EP : EPS : Epsilon

Epsilon (uppercase Ε, lowercase ε) is the fifth letter of the Greek alphabet. In the system of Greek numerals it has a value of 5. It was derived from the Phoenician letter He . Letters that arose from Epsilon include the Roman E and Cyrillic Ye.

"E psilon" ("simple e") was coined to distinguish the letter from αι, which by the medieval period was pronounced the same way.

Symbol

The upper-case Epsilon is not a very often used symbol outside of the Greek language because of its similarity to the Roman letter E.

The lower-case letter ε is used as the symbol for:

In mathematics (particularly calculus), a small positive quantity, usually denoted ε; see limit.
* By analogy with this, the late mathematician Paul Erdős also used the term "epsilons" to refer to children (Hoffman 1998, p. 4).
In set theory, the limit ordinal of the sequence [\omega,\omega^,\omega^},\dots].
In computing, the precision of a numeric data type.
In computer science, the empty string, though different writers use a variety of other symbols for the empty string as well, including the lower case Greek letter lambda.
In mathematics, the Levi-Civita symbol.
In mathematics, set membership (often written ∈ instead of ε).
In physics, the permittivity of a medium.
In physics/electronics, the EMF of a circuit
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.
In phonetics, the open or lax mid-front vowel, as in the English word "pet" (/pεt/)

Commerce

Epsilon S.A - studio company
GM Epsilon platform, a mid-size car automobile platform from General Motors.
Epsilon (formerly Epsilon Data Management). ([external link]), an American marketing services company; includes Epsilon Interactive, a leading permission-based email marketing company. ([external link])
Epsilon Industries Inc. ([external link]), an American plastic injection molding firm specializing in custom molds and new product development.
Epsilon Network, LLC ([external link]), an American marketing & communications firm specializing in web design and development.
Epsilon Products Company ([informational link]), an American plastics manufacturer
Epsilon Technology Corp. ([external link]), an American manufacturer
A patented data compression technology ([external link]) from iOra Limited, a British Independent software vendor
Epsilon Events ([external link]),is a conference and event company based in the UK organising forums for debate on key elements of European policy and legislation.

Fictional names

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 is the primordial guide of Jess in the children's novel The Riddles of Epsilon by Christine Morton-Shaw.
Epsilon Eridani III is the planet that the spacestation Babylon 5 orbited in the eponymous sci-fi television series.
E-104 Epsilon is also the name of a robot in Sonic Adventure.
Epsilon Semi-Moron is the lowest and least intelligent caste in Aldous Huxley's dystopic satire Brave New World.
In Greek it is used for Epsilon Team.
Epsilon is the main character in the John J. Rust superhero novel "Epsilon."
"Epsilon Mirror" is the name of one of Aika's moves in the video game Skies of Arcadia.
Epsilon is the leader of the Rebellion in

References

Hoffman, Paul; The man who loved only numbers. Hyperion, 1998. ISBN 0786863625.

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.