Omega (Greek letter): Difference between revisions
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imported>Thomas Simmons (New page: Omega (uppercase Ω, lowercase ω) is the 24th and last letter of the Greek alphabet. In the Greek numeric system, it has a value of 800. ==Symbol uppercase Ω== '''Astronomy''' *density ...) |
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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> | *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 | *designation for the last carbon on the chain in a fatty acid | ||
'''Electricity''' | '''Electricity''' | ||
* | *[[Ohm]]: SI unit of electrical resistance | ||
*[[Siemens (unit)]], abbreviated S, is the reciprocal of the ohm. | |||
'''Mathematics''' | '''Mathematics''' | ||
*Omega constant (Lambert’s W function)<ref>[http://mathworld.wolfram.com/OmegaConstant.html] Wolfram Math World</ref> | *Omega constant (Lambert’s W function)<ref>[http://mathworld.wolfram.com/OmegaConstant.html] Wolfram Math World</ref> | ||
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*Calculus: a 2-D region | *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).<ref>[http://www.nist.gov/dads/HTML/omegaCapital.html] National Institute of Standards and Technology</ref> | *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).<ref>[http://www.nist.gov/dads/HTML/omegaCapital.html] National Institute of Standards and Technology</ref> | ||
*Stochastic process<ref>[http://en.citizendium.org/wiki/Stochastic_process Formal definition and basic properties] Stochastic process</ref> | |||
'''Meterology''' | '''Meterology''' | ||
*Used to designate vertical motion in the atmosphere<ref>[http://www.srh.noaa.gov/jetstream/append/glossary_o.htm] JetStream – Online school for weather, National Weather Service</ref> | *Used to designate vertical motion in the atmosphere<ref>[http://www.srh.noaa.gov/jetstream/append/glossary_o.htm] JetStream – Online school for weather, National Weather Service</ref> | ||
Revision as of 17:38, 30 March 2008
Omega (uppercase Ω, lowercase ω) is the 24th and last letter of the Greek alphabet. In the Greek numeric system, it has a value of 800.
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.[1][2][3]
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)[4]
- Chaitin’s constant: the probability that a randomly selected valid program string is interpreted by a halting
term[5]
- 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).[6]
- Stochastic process[7]
Meterology
- Used to designate vertical motion in the atmosphere[8]
Statistics
- Sample space
- Set of possible outcomes
Literary
- End or last thing in a series[9]
Physics
- Solid angle or rate of precession in a gyroscope[10]
- Omega baryons (particle physics)
- Negatively charged elementary particle with a mass 3270 times the mass of an electron.[11]
- Omega minus b: a very short-lived unstable meson with mass 1532 times the mass of an electron (aka omega meson)[12]
References
- ↑ [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