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Omega (lizherenn) : diforc'h etre ar stummoù

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{{Lizherennoù gresianek}}
 
[[Skeudenn:Omega.png|left|100px]]
Pevare lizherenn war-‘nwarn-ugent al [[Lizherenneg ar gresianeg|lizherenneg c’hresianek]] eo '''omega''' (Ω, ω) hag a dalvez da 800 hervez ar sistem niverenniñ gresianek. Al lizherenn diwezhañ an hini eo.
 
Graet e vez ωμέγα ‘’o“o mega’’mega” (“o bras”) diouzh al lizherenn-mañ evit ober an diforc’h etrezi hag al lizherenn O pe ομικρόν ‘[[Omikron (lizherenn)|omikron]]’’ (“o bihan”).
 
Distaget e vez [[LFE]] [ɔː] pe [ɔ] e [[Gresianeghenc'hresianeg|gresianek klasel]] hag [o] e [[Gresianeg|gresianeg a-vremañ]].
 
Diorroet e oa bet diwar daou [[Omikron (lizherenn)|omikron]] skrivet renk -ouzh -renk da gentañ hag an eil war-lerc'h egile da c'houde.
War-lerc'h e oa bet diorroet ivez al [[Lizherenneg kirillek|lizherennoù kirillek]] a-gozh Ѡ ha ѡ).
 
== Implijoù all ==
Implijet e vez alies, dreist-holl gant ar [[Kristeniezh|gristeniezh]] evit ober dave d’an diwezh, o keñveriañ gant [[Alpha (Lizherennlizherenn)|alpha]] hag a ra dave d’ar penn-kentañ.▼
 
▲Implijet e vez alies, dreist-holl gant ar [[Kristeniezh|gristeniezh]] evit ober dave d’an diwezh, o keñveriañ gant [[Alpha (Lizherenn)|alpha]] hag a ra dave d’ar penn-kentañ.
 
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== The symbol Ω (upper-case letter) ==
The upper-case letter Ω is used as a symbol.
=== In Reality ===
*For [[Ohm (unit)|ohm]] — [[SI]] unit of electrical resistance; formerly also used upside down (℧) to represent [[mho]], the old name for the inverse of an ohm (now [[siemens (unit)|siemens]] with symbol S) used for electrical conductance. [[Unicode]] has a separate code point for the [[Ohm (unit)|ohm]] sign (U+2126), but it is only included for backwards compatibility and the Greek uppercase omega character (U+03A9, Ω) is preferred.
*In the late 1960s [[United States]], it was used as an icon/symbol for [[Conscription#Draft_resisters|draft resistance]].
*In [[computer science]], in notation related to [[Big O notation]] to describe the [[asymptotic behavior]] of [[function (mathematics)|function]]s. See also [[Chaitin's constant]]
*''Codex Athous Dionysii'', an 8th/9th century [[uncial]] [[Greek language|Greek]] manuscript of the [[Gospel]]s on [[Mount Athos]]
*[[Omega Point]], a theory about computing at the end of the universe
*In [[mathematics]], the [[Omega constant]], a solution of [[Lambert's W function]]; or the first [[uncountable set|uncountable]] [[ordinal number]] (also known as <math>\omega_1</math>)
*In [[physics]], the [[solid angle]].
*In [[particle physics]] to represent the [[Omega baryon]]s. A lowercase omega is used for the [[omega meson]]s.
*In [[combinatory logic]], the looping combinator, ''(λ x. x x)(λ x. x x)''
*For the [[Lebanon|Lebanese]] political party: the [[Free Patriotic Movement]]
*A Prestige Swiss watch company named [[Omega Watches|Omega]] [[http://www.omega.ch]]
*The logo of [[Lululemon Athletica]] is often mistaken for a stylized Ω, but the company claims it is in fact a stylized [[A]].
*Since Omega is the last letter of the Greek alphabet, it sometimes represents the end. The saying "alpha and the omega" means "the beginning and the end," and is also a [[Christian]] reference to [[Jesus]]. References in popular culture include a movie titled "[[The Omega Man]]", whose main character became the last living human. One of Agent Smith's lines from the Matrix Reloaded echoes the biblical phrase as well, with Smith calling himself the [[Alpha]] of Neo's Omega, or the beginning of his end.
*In [[astronomy]] ([[cosmology]]) Ω refers to the density of the universe, also called the [[Friedmann_equations#The_density_parameter|density parameter]].
=== In Pop Culture and Fiction ===
* [[Naoki Maeda]]'s [[pseudonym]] for the ''[[Dance Dance Revolution]]'' song "MAX 300"
* The symbol was on Cassandra's shield in [[Soul Calibur 2]]
* In [[Mega Man Zero]] games, the [[utopia]] Neo Arcadia bears the Ω symbol during the course of the game. Ω is also used as a boss' allegiance symbol until Mega Man Zero 3.
* In the [[PlayStation 2|PS2]] game [[God of War]] Ω is used in many different areas including the title where the symbol surounds "Of".
* On the NBC soap opera [[Passions]] the omega symbol is being featured frequently as part of the Passions Vendetta storyline.
*Sonic Heroes introduced a new robot from the E-100 series, E-123 Omega.
*The Ultarmarines in Warhammer 40000 use omega for their unit insignia.
*In [[Star Trek: Voyager]], Omega was told to be an element so unstable that an explosion of only a few molecules could destabilise sub-space in a region of several lightyears.
*A villain in [[Marvel Comics]] named [[Omega Red]] has a golden Ω symbol on his headband.
 
== The symbol ω (lower-case letter) ==
The lower-case letter ω is used as a symbol:
*In [[textual criticism]], the [[archetype]] of a manuscript tradition
*In [[physics]], [[angular velocity]]
*In [[mathematics]], the first [[transfinite number|transfinite]] [[ordinal number]]
*In [[number theory]], an [[arithmetic function]]
*In [[combinatory logic]], the self-application combinator, ''(λ x. x x)''
*In [[computer science]], in notation related to [[Big O notation]], the [[asymptotically dominant]] nature of [[function (mathematics)|function]]s
*In [[Astronomy]], as a ranking of a star's brightness
*In [[particle physics]] to represent the [[Meson|omega meson]]
*In [[Circuit Analysis]] and [[Signal Processing]] to represent [[frequency]].
*In [[Biochemistry]] to denote the carbon atom furthest from the [[carboxyl group]] of a [[fatty acid]].-->
 
== Gwelet ivez ==
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