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  2. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Ionic-based Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard throughout the Greek-speaking world [6] and is the version that is still used for Greek writing today.

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

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

    The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance , the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.

  4. List of Greek letters - Wikipedia

    en.wikipedia.org/wiki/List_of_Greek_letters

    Alpha with grave and rough breathing: Archaic letter denoting the presence of /h/ prior to the vowel, with a normal or low pitch Ἇἇ: Alpha with circumflex and rough breathing: Archaic letter denoting the presence of /h/ prior to the vowel, with a high or falling pitch Ᾱᾱ: Alpha with macron: Archaic letter denoting a long vowel Ᾰᾰ ...

  5. List of Sigma Alpha Iota chapters - Wikipedia

    en.wikipedia.org/wiki/List_of_Sigma_Alpha_Iota...

    Sigma Alpha: March 3, 1924 Illinois Wesleyan University: Bloomington, Illinois: Active [20] Sigma Beta: March 5, 1924 Ohio University: Athens, Ohio: Active [21] Sigma Gamma: April 23, 1924 University of Tulsa: Tulsa, Oklahoma: Active [22] Sigma Delta: May 1, 1924 University of Illinois Urbana-Champaign: Urbana, Illinois: Active [16] Sigma ...

  6. List of Epsilon Sigma Alpha chapters - Wikipedia

    en.wikipedia.org/wiki/List_of_Epsilon_Sigma...

    Print/export Download as PDF; ... Following is an incomplete list of Epsilon Sigma Alpha community-based chapters. ... Beta Gamma: Mesa, Arizona: Arizona: Active [82]

  7. NATO phonetic alphabet - Wikipedia

    en.wikipedia.org/wiki/NATO_phonetic_alphabet

    This is an accepted version of this page This is the latest accepted revision, reviewed on 1 January 2025. Letter names for unambiguous communication Not to be confused with International Phonetic Alphabet. Alphabetic code words A lfa N ovember B ravo O scar C harlie P apa D elta Q uebec E cho R omeo F oxtrot S ierra G olf T ango H otel U niform I ndia V ictor J uliett W hiskey K ilo X ray L ...

  8. 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 ...

  9. List of Sigma Alpha chapters - Wikipedia

    en.wikipedia.org/wiki/List_of_Sigma_Alpha_chapters

    Sigma Alpha is an American professional sorority for agricultural students. [1] It was established at Ohio State University in 1978. [ 2 ] Following are the chapters of Sigma Alpha, with active chapters indicated in bold and inactive chapters in italics .