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  2. Coronado High School (Arizona) - Wikipedia

    en.wikipedia.org/wiki/Coronado_High_School_(Arizona)

    Coronado High School, named after the Spanish conquistador Francisco Vásquez de Coronado, opened to students in grades 9-12 during fall 1961 as a public comprehensive high school with an emphasis on college preparatory and vocational/technical curriculum.

  3. Portland Public Schools (Oregon) - Wikipedia

    en.wikipedia.org/wiki/Portland_Public_Schools...

    The St. Johns (school) District was annexed on July 7, 1915, and the James John High School was added [clarification needed] at this time. On the suggestion of superintendent Lewis H. Alderman, high school dances were allowed by the school board beginning in 1915, with the stipulation that "the parents of a majority of the students attend."

  4. Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Plus–minus_sign

    The minus–plus sign, ∓, is generally used in conjunction with the ± sign, in such expressions as x ± y ∓ z, which can be interpreted as meaning x + y − z or x − y + z (but not x + y + z or x − y − z). The ∓ always has the opposite sign to ±.

  5. Desert Mountain High School - Wikipedia

    en.wikipedia.org/wiki/Desert_Mountain_High_School

    Desert Mountain has a two-semester scheduling format to serve its student population of almost 2,300 students in grades nine through twelve. In 1998, Desert Mountain became an International Baccalaureate Member School and is a magnet program for the Scottsdale Unified School District. Desert Mountain offers students the choice of standard ...

  6. Social login - Wikipedia

    en.wikipedia.org/wiki/Social_login

    Social login is a form of single sign-on using existing information from a social networking service such as Facebook, Twitter or Google, to login to a third party website instead of creating a new login account specifically for that website. It is designed to simplify logins for end users as well as provide more reliable demographic ...

  7. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The £ grapheme in a selection of fonts The pound sign (£) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England.

  8. At sign - Wikipedia

    en.wikipedia.org/wiki/At_sign

    The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), [1] now seen more widely in email addresses and social media platform handles.

  9. Sign function - Wikipedia

    en.wikipedia.org/wiki/Sign_function

    Signum function = ⁡. In mathematics, the sign function or signum function (from signum, Latin for "sign") is a function that has the value −1, +1 or 0 according to whether the sign of a given real number is positive or negative, or the given number is itself zero.