Omega (capital ω, lowercase ω), also called big O, is the 24th and last Greek letter. The unit of resistance. Ω is used to refer to the end of things, corresponding to the alpha of the beginning, such as: I am alpha, I am Ω, I am the first, I am the last, I am the beginning and I am the end. (Revelation 22: 13)

computer science

big o notation

Chai Ding constant (Chai Ding constant)

Omega (TeX): Unicode version of the typesetting system TeX.

mathematics

The first uncountable ordinal number

Another name of Lambert w function "ω function"

ω constant

Astronomy/physics

In astronomy, capital Ω, energy related to vacuum space, dark energy.

Physically written ω stands for angular velocity.

In physics, the capital Ω represents the unit of resistance "ohm", which is called "ohm" for short.

organic chemistry

Symbol indicating molecular unsaturation in organic chemistry

ω= C+ 1-(X-N)/2

Where c represents the number of carbon atoms, h represents the total number of hydrogen atoms and halogen atoms, and n represents the number of nitrogen atoms. Oxygen and other divalent atoms do not contribute to the calculation of unsaturation, so there is no need to consider the number of oxygen atoms. This method is only applicable to compounds containing carbon, hydrogen, monovalent halogen, nitrogen and oxygen.

name

Omega watch: Swiss watch company, with "ω" as the symbol.

Omega:1The pseudonym of an evangelical cartoonist in Hong Kong in the 1980s. Her pen name is taken from the Cantonese transliteration of Omega.

Omega-3 fatty acid (a fatty acid)

Omega navigation system is the first global radio navigation.

Represents a hairstyle in which the hair is shaped into an omega shape.

A prank-like game

A PS2 game, God of War ω.

Horseshoe symbol. The symbol of a watch

Yuriko Ω, the heroic unit of Japanese imperial camp in Red Alert 3.