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  2. Mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Mechanical_engineering

    Various machine components used in mechanical engineering. Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. [1]

  3. Dark web - Wikipedia

    en.wikipedia.org/wiki/Dark_Web

    The dark web is the World Wide Web content that exists on darknets: overlay networks that use the Internet but require specific software, configurations, or authorization to access.

  4. Primality test - Wikipedia

    en.wikipedia.org/wiki/Primality_test

    A primality test is an algorithm for determining whether an input number is prime.Among other fields of mathematics, it is used for cryptography.Unlike integer factorization, primality tests do not generally give prime factors, only stating whether the input number is prime or not.

  5. Telegram (software) - Wikipedia

    en.wikipedia.org/wiki/Telegram_(software)

    In January 2021, Durov explained his rationale for not releasing server-side code, citing reasons such as inability for end-users to verify that the released code is the same code run on servers, and a government that wanted to acquire the server code and make an instant messaging network that would end competitors. [338]

  6. United States Electoral College - Wikipedia

    en.wikipedia.org/wiki/United_States_Electoral...

    Responding to the problems from those elections, Congress proposed on December 9, 1803, and three-fourths of the states ratified by June 15, 1804, the Twelfth Amendment. Starting with the 1804 election , the amendment requires electors to cast separate ballots for president and vice president, replacing the system outlined in Article II ...

  7. Division (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Division_(mathematics)

    In abstract algebra, given a magma with binary operation ∗ (which could nominally be termed multiplication), left division of b by a (written a \ b) is typically defined as the solution x to the equation a ∗ x = b, if this exists and is unique. Similarly, right division of b by a (written b / a) is the solution y to the equation y ∗ a = b ...

  8. Number sign - Wikipedia

    en.wikipedia.org/wiki/Number_sign

    The symbol # is known variously in English-speaking regions as the number sign, [1] hash, [2] or pound sign. [3] The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔.

  9. PageRank - Wikipedia

    en.wikipedia.org/wiki/PageRank

    PageRank is a link analysis algorithm and it assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set.