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  2. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the Kappa number, indicating lignin content in pulp; represents: the Von Kármán constant, describing the velocity profile of turbulent flow; the kappa curve, a two-dimensional algebraic curve; the condition number of a matrix in numerical analysis; the connectivity of a graph in graph theory; curvature

  3. Koppa (letter) - Wikipedia

    en.wikipedia.org/wiki/Koppa_(letter)

    Koppa or qoppa (Ϙ, ϙ; as a modern numeral sign: ϟ) is a letter that was used in early forms of the Greek alphabet, derived from Phoenician qoph (𐤒).It was originally used to denote the /k/ sound, but dropped out of use as an alphabetic character and replaced by Kappa (Κ).

  4. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    The symbol ϑ ("script theta") is a cursive form of theta (θ), frequent in handwriting, and used with a specialized meaning as a technical symbol. The symbol ϰ ("kappa symbol") is a cursive form of kappa (κ), used as a technical symbol.

  5. Kappa - Wikipedia

    en.wikipedia.org/wiki/Kappa

    Variant kappa Greek word καί written with a handwritten variant of kappa, from the Byzantine period. Kappa (/ ˈ k æ p ə /; [1] uppercase Κ, lowercase κ or cursive ϰ; Greek: κάππα, káppa) is the tenth letter of the Greek alphabet, representing the voiceless velar plosive IPA: sound in Ancient and Modern Greek.

  6. Greek ligatures - Wikipedia

    en.wikipedia.org/wiki/Greek_ligatures

    Early Greek print, from a 1566 edition of Aristotle. The sample shows the -os ligature in the middle of the second line (in the word μέθοδος), the kai ligature below it in the third line, and the -ou-ligature right below that in the fourth line, along many others. 18th-century typeface sample by William Caslon, showing a greatly reduced set of ligatures (-ου-in "τοῦ", end of first ...

  7. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

  8. K - Wikipedia

    en.wikipedia.org/wiki/K

    Ʞ ʞ: Turned capital and small k were used in transcriptions of the Dakota language in publications of the American Board of Ethnology in the late 19th century. [9] Turned small k was also used for a velar click in the International Phonetic Alphabet but its use was withdrawn in 1970. 𝼐: Small capital turned k is used as a click letter [10 ...

  9. Xi (letter) - Wikipedia

    en.wikipedia.org/wiki/Xi_(letter)

    u+039e Ξ greek capital letter xi (ξ) (\xi in tex) u+03be ξ greek small letter xi (ξ) (\xi in tex) u+2c9c Ⲝ coptic capital letter ksi; u+2c9d ⲝ coptic small letter ksi; u+1d6b5 횵 mathematical bold capital xi [a] u+1d6cf 훏 mathematical bold small xi; u+1d6ef 훯 mathematical italic capital xi; u+1d709 휉 mathematical italic small xi