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

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

    Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.

  3. Beta Theta Pi - Wikipedia

    en.wikipedia.org/wiki/Beta_Theta_Pi

    Beta Theta Pi (ΒΘΠ), commonly known as Beta, is a North American social fraternity that was founded in 1839 at Miami University in Oxford, Ohio.One of North America's oldest fraternities, as of August 2023 it consists of 150 active chapters and colonies in the United States and Canada. [1]

  4. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    Trigonometric functions and their reciprocals on the unit circle. All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same.

  5. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    The symbol ϵ (U+03F5) is designated specifically for the lunate form, used as a technical symbol. 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.

  6. List of Greek letters - Wikipedia

    en.wikipedia.org/wiki/List_of_Greek_letters

    Pi with caron: Nonstandard letter for Cypriot Greek representing /pʲ/ [9] ῤ: Rho with smooth breathing: Archaic letter denoting /r/, [11] Ῥῥ: Rho with rough breathing: Archaic letter denoting /r̥/ [11] Ṗρ̇: Rho with dot above: Arvanitika letter for /r/ [7] Σ̌σ̌ς̌: Sigma with caron: Nonstandard letter for Cypriot Greek [9] and ...

  7. List of Auburn University fraternities and sororities - Wikipedia

    en.wikipedia.org/wiki/List_of_Auburn_University...

    Symbols Charter date and range References Sigma Alpha Epsilon: Alabama Alpha Mu: ΣΑΕ: June 15, 1878 – 1880; 1886 Phi Delta Theta: Alabama Beta: ΦΔΘ: January 30, 1879 – 2014; 2017 [11] Alpha Tau Omega: Alpha Epsilon: ΑΤΩ: January 2, 1879 – 2001; 2006 Kappa Alpha Order: Nu: ΚΑ: November 24, 1883 Sigma Nu: Beta Theta: ΣΝ: 1890 ...

  8. Ex-leaders of Penn State frat where pledge died after night ...

    www.aol.com/news/ex-leaders-penn-state-frat...

    Brendan Young, 28, who was president of the now defunct chapter of Beta Theta Pi in 2017, and Daniel Casey, 27, who was vice president and pledge master, both pleaded guilty to hazing and reckless ...

  9. Defunct North American collegiate sororities - Wikipedia

    en.wikipedia.org/wiki/Defunct_North_American...

    On September 15, 1887, the sorority changed its name to Beta Delta Pi with charter members Mame Custer, Clara Fairchilds, Jessie Jones, Sue Loudon, Carrie Lovell, and Luella Peck. [2] Little else is known about this sorority. A Beta chapter was chartered at Miss Gordon's Private School in