Kappa (letter) - Revision history

Beza 1598 at 15:36, 11 March 2016

2016-03-11T15:36:49Z

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	{{Greek Lexicon}}		{{Greek Lexicon}}
	[[Category:Greek letters]]		[[Category:Greek letters]]

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Nick at 14:21, 3 February 2015

2015-02-03T14:21:11Z

← Older revision		Revision as of 14:21, 3 February 2015
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	In [[set theory]], kappa is often used to denote an [[Ordinal numbers\|ordinal]] which is also a [[Cardinal numbers\|cardinal]].		In [[set theory]], kappa is often used to denote an [[Ordinal numbers\|ordinal]] which is also a [[Cardinal numbers\|cardinal]].
			{{Greek Lexicon}}
	[[Category:Greek letters]]		[[Category:Greek letters]]

Nick at 14:20, 3 February 2015

2015-02-03T14:20:47Z

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	{{Greek ~~Lexicon}}~~		[[image:kappa.jpg\|thumb\|150px\|Kappa]]
			'''Kappa''' (uppercase '''Κ''', lowercase '''κ''' or '''ϰ'''; Κάππα) is the 10th letter of the [[Greek alphabet]], used to represent the [[voiceless velar stop]], or "k", sound in [[Ancient Greek\|Ancient]] and [[Modern Greek]]. In the system of [[Greek numerals]] it has a value of 20. It was derived from the Phoenician letter [[Kaph]]. Letters that arose from kappa include the Roman [[K]] and Cyrillic [[Ka (Cyrillic)\|К]].

			[[image:Greek lowercase kappa variant.png\|thumb\|left\|75px\|Variant kappa]]
			Greek proper names and placenames containing kappa are often written in English with "c" due to contemporary rendering into the [[Latin alphabet]] by ancient Romans. However, modern transliteration of the Greek language invariably use the letter "k". Compare ''Κυνοσκεφαλαι'', ''[[Cynoscephalae]]'' (ancient placename); ''κυνος κεφαλαι'', ''kunos kephalai'' (phrase), meaning "[[dog]]'s [[head]]s".
			[[image:kappa-variant.PNG\|frame\|left\|Greek word ''καί'' written with a handwritten variant of kappa, from the Byzantine period]]
			In [[mathematics]], the [[kappa curve]] is named after this letter; the [[tangent]]s of this [[curve]] were first calculated by [[Isaac Barrow\|Barrow]] (17th Century).

			==Symbol==
			In [[graph theory]], the [[Connectivity (graph theory)\|connectivity]] of a [[graph (mathematics)\|graph]] is given by κ.

			In [[differential geometry]], the [[curvature]] of a curve is given by κ.

			In [[physics]], the [[torsional constant]] of an [[oscillator]] is given by κ as well as [[Einstein's constant\|Einstein constant of gravitation]].

			In [[structural design]], κ is the ratio of the smaller factored moment to the larger factored moment and is used to calculate the critical [[elastic moment]] of an unbraced steel member.

			In [[electrical engineering]], it is the multiplication factor, a function of the R/X ratio of the equivalent power system network, which is used in calculating the peak short-circuit current of a system fault.

			In [[chemistry]], the [[compressibility]] of a compound is given by κ.

			In [[psychology]] and [[psychiatry]], kappa represents a measure of diagnostic reliability.

			In [[biology]], kappa and kappa prime are important [[nucleotide]] motifs for a tertiary interaction of group II introns.

			In [[biology]], kappa designates a subtype of an [[antibody]] component.

			In [[pharmacology]], kappa represents a type of [[opioid receptors]].

			[[Kappa statistics]] such as [[Cohen's kappa]] and [[Fleiss' kappa]] are methods for calculating [[inter-rater agreement]].

			Upper-case letter Κ is used as a symbol for:

			In [[textual criticism]], the [[Byzantine text-type]] (from Κοινη, ''Koine'', the common text).

			In [[set theory]], kappa is often used to denote an [[Ordinal numbers\|ordinal]] which is also a [[Cardinal numbers\|cardinal]].

			[[Category:Greek letters]]

Nick at 11:39, 20 January 2015

2015-01-20T11:39:50Z

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	~~Fco111 , [url=http://yxkwhuwmnlnw.com/]yxkwhuwmnlnw[/url], [link=http://vpianzoxwsnu.com/]vpianzoxwsnu[/link], http://wiebozlhdzcs.com/~~		{{Greek Lexicon}}

50.19.59.19: bvYcTEOQki

2011-08-10T13:46:54Z

bvYcTEOQki

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	~~5xp9Gu <a href~~="http://~~xtcznqjdbjnx~~.com/~~">xtcznqjdbjnx<~~/a>		Fco111 , [url=http://yxkwhuwmnlnw.com/]yxkwhuwmnlnw[/url], [link=http://vpianzoxwsnu.com/]vpianzoxwsnu[/link], http://wiebozlhdzcs.com/

50.56.102.66: fheMYqWIzsGGW

2011-08-10T09:08:26Z

fheMYqWIzsGGW

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189.84.49.13: dZfZsDwMBWDe

2011-08-09T09:16:38Z

dZfZsDwMBWDe

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