E (disambiguation)

From Wikipedia, the free encyclopedia

"e-" redirects here. For the Internet-related prefix e-, see Wiktionary's entry e-.

Look up E, e, or è in Wiktionary, the free dictionary.

E is the fifth letter of the Latin alphabet.

E may also refer to:

Commerce and transportation

€, the euro, the European currency unit
℮, the estimated sign, an EU symbol indicating that the weight or volume of the goods is within specific allowable tolerances
E, international licence plate coding for Spain
E, a Polish electric locomotive in PKP classification system
E or Eni, an Italian oil and gas company

E number, a number code for a food additive, an EU labelling requirement
Haplogroup E (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
Haplogroup E (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
E or glutamic acid, an amino acid, glutamate
E. coli or Escherichia coli, a bacterium commonly found in the lower intestine
E. coli or Entamoeba coli, a non-pathogenic parasite frequently found in the human intestine
Vitamin E or Tocopherol, a class of chemical compounds

e (or e^-) or electron, a fundamental subatomic particle
e or elementary charge, the absolute value of the electric charge carried by a single electron.
e or Coefficient of restitution (COR), a measure of the elasticity of a collision in mechanics
E, the symbol for energy in equations concerning mass-energy equivalence
E or Young's modulus, a measure of stiffness in solid mechanics
E or exa-, the SI prefix for 10¹⁸
E-layer or the Kennelly-Heaviside layer, part of the ionosphere
E, the symbol for an electric field
e or orbital eccentricity, a measure of how much a conic section deviates from a circle
E or Equal Energy spectrum, a definition of white in colour printing
E°, the Standard electrode potential

e (mathematical constant), also known as Euler's number and Napier's constant, a transcendental number and the base of natural logarithms, approximately equal to 2.718
E notation, or scientific notation, a way of writing very large and very small numbers
∃ (a backwards E) or existential quantification, the symbol for "there exists...", in predicate logic; ∃! meaning "there exists only one" (or "there exists exactly one") - see Uniqueness quantification
E, 14 in hexadecimal and other positional numeral system
E or Expected value, the average expected outcome of a trial in probability theory
e, the identity element

E (complexity), a set of decision problems solvable by a Turing machine in a specific time
E (PC DOS), a text editor
E (programming language), an object-oriented programming language
e (verification language) hardware verification language
E (text editor), a text editor originally developed at the Stanford AI Lab (Stanford University) in the 1970s
E Text Editor, a Windows text editor
E equational theorem prover, a modern, high performance prover for first-order logic
Amiga E, a programming language
E or Enlightenment (window manager), a free software open source manager for X Window System

E (musical note), the third note of the C major scale
E major, the scale and key
E minor, the scale and key
E, a nickname of Mark Oliver Everett, musician and front man of the rock band Eels
[e], an album from Korean hip-hop group Epik High
E (video), by Eminem
E (Adrian Belew album), 2009

E!, Entertainment Television, an American cable and satellite TV network
E! (Canada):
- E! (Canadian TV system), a defunct over-the-air television system operated by Canwest from 2001 to 2009 (originally known as CH until 2007)
- E! (Canadian TV channel), a Canadian cable/satellite specialty channel owned by Bell Media that launched in November 2010.
E (film), a 2005 Tamil film
E, or Edna Mode, a character from the movie The Incredibles
E, or Eric Murphy, a character from the television series Entourage

E Township, Maine, an unincorporated community in USA
River E, a river in Scotland
E or east, one of the four cardinal directions
E postcode area, for east London
E, New Brunswick's postal code
State of E (Chinese: t 鄂國, s 鄂国, Èguó), a vassal state in Zhou Dynasty China (1046–256 BC)

E (name) (Chinese: 鄂), a Chinese family name. Also a given name.
- Weinan E, a Chinese mathematician
E, a nickname of Mark Oliver Everett, musician and front man of the rock band Eels
e, a nickname of Eric Neustadter, Operations Manager for Xbox Live and frequent co-host of the "Major Nelson Radio" podcast

Ⓔ or ⓔ or (e) or (E) - circled-E or circled-E, see Enclosed Alphanumerics
e (novel), a 2000 comic novel by Matt Beaumont
E band, a range of radio frequencies used by NATO
E#, a team's elimination number
E, another name for the recreational drug Ecstasy, also called MDMA
E, or the Elohist, one of the four sources of the Torah
E, or Everyone, a video game rating symbol used by the Entertainment Software Rating Board (ESRB)
E-Z notation, to indicate double bonds that two groups of higher priority are on opposite sides.