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  3. Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia

    Wikipedia is the largest and most-read reference work in history, [3] [4] and is consistently ranked among the ten most visited websites; as of April 2024, it was ranked fourth by Semrush, [5] and seventh by Similarweb. [6]

  4. FIS (company) - Wikipedia

    en.wikipedia.org/wiki/FIS_(company)

    FIS (company) Fidelity National Information Services, Inc. ( FIS) is an American multinational corporation which offers a wide range of financial products and services. FIS is most known for its development of Financial Technology, or FinTech, and as of Q2 2024 it offers its solutions in two primary segments: Banking Solutions & Capital Market ...

  5. Fidelity International - Wikipedia

    en.wikipedia.org/wiki/Fidelity_International

    FIL Limited. Fidelity International Ltd, or FIL for short, is a company that provides investment management services including mutual funds, pension management and fund platforms to private and institutional investors. Fidelity International was originally established in 1969 as the international investment subsidiary of Fidelity Investments in ...

  6. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The plus sign ( +) and the minus sign ( −) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference. [1] Their use has been extended to many other meanings, more or less analogous.

  7. Fidelity of quantum states - Wikipedia

    en.wikipedia.org/wiki/Fidelity_of_quantum_states

    Fidelity of quantum states. In quantum mechanics, notably in quantum information theory, fidelity is a measure of the "closeness" of two quantum states. It expresses the probability that one state will pass a test to identify as the other. The fidelity is not a metric on the space of density matrices, but it can be used to define the Bures ...

  8. Musical Fidelity - Wikipedia

    en.wikipedia.org/wiki/Musical_Fidelity

    Musical Fidelity was founded in 1982 by Antony Michaelson, a clarinettist and Hi-Fi enthusiast, following his exit from Michaelson & Austin, a predecessor company of which he was a partner. Musical Fidelity's first product was "The Preamp", which incorporated moving coil and moving magnet pre-amplification and a single line-level ‘Tuner’ input.

  9. Universal grammar - Wikipedia

    en.wikipedia.org/wiki/Universal_grammar

    Universal grammar ( UG ), in modern linguistics, is the theory of the innate biological component of the language faculty, usually credited to Noam Chomsky. The basic postulate of UG is that there are innate constraints on what the grammar of a possible human language could be. When linguistic stimuli are received in the course of language ...