Omega (Greek letter): Difference between revisions
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==Symbol uppercase Ω== | ==Symbol uppercase Ω== | ||
'''Astronomy''' | '''Astronomy''' | ||
* | *Density of the universe, also referred to as the cosmological density parameter. with components of mass density, Ω<sub>M</sub>, and vacuum energy density, Ω<sub>L</sub>.<ref>[http://www4.nau.edu/meteorite/Meteorite/Book-GlossaryO.html] Meteorite Book, Northern Arizona University</ref><ref>[http://en.citizendium.org/wiki/Astrophysics Curvature] Astrophysics</ref><ref>[http://en.citizendium.org/wiki/Cosmology Cosmological curvature] Cosmology</ref> | ||
'''Chemistry''' | '''Chemistry''' | ||
* | *Designation for the last carbon on the chain in a fatty acid | ||
'''Electricity''' | '''Electricity''' | ||
*[[Ohm]]: [[International System of Units|SI]] unit of electrical resistance | *[[Ohm]]: [[International System of Units|SI]] unit of electrical resistance | ||
Revision as of 14:58, 19 March 2022
Omega (uppercase Ω, lowercase ω) is the 24th and last letter of the Greek alphabet.[1] In the Greek numeric system, it has a value of 800. Pronounced [ɔ:] or 'aw' as in 'raw'.[2][3]
Symbol uppercase Ω
Astronomy
- Density of the universe, also referred to as the cosmological density parameter. with components of mass density, ΩM, and vacuum energy density, ΩL.[4][5][6]
Chemistry
- Designation for the last carbon on the chain in a fatty acid
Electricity
- Ohm: SI unit of electrical resistance
- Siemens (unit), abbreviated S, is the reciprocal of the ohm.
Mathematics
- Omega constant (Lambert’s W function)[7]
- Chaitin’s constant: the probability that a randomly selected valid program string is interpreted by a halting
term[8]
- Calculus: a 2-D region
- A theoretical measure of the execution of an algorithm, (e.g. required time or memory) given the problem size n (e.g. the number of items).[9]
- Stochastic process[10]
Meteorology
- Used to designate vertical motion in the atmosphere[11]
Statistics
- Sample space
- Set of possible outcomes
Literary
- End or last thing in a series[12]
Physics
- Solid angle or rate of precession in a gyroscope[13]
- Omega baryons (particle physics)
- Negatively charged elementary particle with a mass 3270 times the mass of an electron.[14]
- Omega minus b: a very short-lived unstable meson with mass 1532 times the mass of an electron (aka omega meson)[15]
Symbol lowercase ω
Mathematics
- The set of all natural numbers[16]
Physics
- Angular frequency
References
- ↑ Greek Omniglot
- ↑ IPA pronunciation chart for English equivalentsGreek alphabet pronunciation and languageOmniglot
- ↑ Omega pronunciation Ancient Greek tutorials, UC Berkeley
- ↑ [1] Meteorite Book, Northern Arizona University
- ↑ Curvature Astrophysics
- ↑ Cosmological curvature Cosmology
- ↑ [2] Wolfram Math World
- ↑ [3] School of Computer Sciences, Carnegie Mellon University
- ↑ [4] National Institute of Standards and Technology
- ↑ Formal definition and basic properties Stochastic process
- ↑ [5] JetStream – Online school for weather, National Weather Service
- ↑ [6] Ask Oxford
- ↑ [7]Wolfram Math World
- ↑ [8] Merriam Webster Online
- ↑ [9] Merriam Webster Online
- ↑ Notation Natural number