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  2. List of conjunctions (astronomy) - Wikipedia

    en.wikipedia.org/wiki/List_of_conjunctions...

    Conjunction of Mercury and Venus, appearing above the Moon, at the Paranal Observatory. This is a list of the Solar System's recent planetary conjunctions (in other words, when two planets look close together) for the period 2005–2020.

  3. Conjunction (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Conjunction_(astronomy)

    A conjunction is an apparent phenomenon caused by the observer's perspective: the two objects involved are not actually close to one another in space. Conjunctions between two bright objects close to the ecliptic, such as two bright planets, can be seen with the naked eye. The astronomical symbol for conjunction is (Unicode U+260C ☌). [4]

  4. Market value - Wikipedia

    en.wikipedia.org/wiki/Market_value

    Market value or OMV (open market valuation) is the price at which an asset would trade in a competitive auction setting.Market value is often used interchangeably with open market value, fair value or fair market value, although these terms have distinct definitions in different standards, and differ in some circumstances.

  5. HP-16C - Wikipedia

    en.wikipedia.org/wiki/HP-16C

    The calculator uses the proprietary HP Nut processor produced in a bulk CMOS process and featured continuous memory, whereby the contents of memory are preserved while the calculator is turned off. [13] Though commonplace now, this was still notable in the early 1980s, and is the origin of the "C" in the model name.

  6. Conjunction elimination - Wikipedia

    en.wikipedia.org/wiki/Conjunction_elimination

    In propositional logic, conjunction elimination (also called and elimination, ∧ elimination, [1] or simplification) [2] [3] [4] is a valid immediate inference, argument form and rule of inference which makes the inference that, if the conjunction A and B is true, then A is true, and B is true.

  7. Logical connective - Wikipedia

    en.wikipedia.org/wiki/Logical_connective

    Both conjunction and disjunction are associative, commutative and idempotent in classical logic, most varieties of many-valued logic and intuitionistic logic. The same is true about distributivity of conjunction over disjunction and disjunction over conjunction, as well as for the absorption law.

  8. Conjugate transpose - Wikipedia

    en.wikipedia.org/wiki/Conjugate_transpose

    In mathematics, the conjugate transpose, also known as the Hermitian transpose, of an complex matrix is an matrix obtained by transposing and applying complex conjugation to each entry (the complex conjugate of + being , for real numbers and ).

  9. Pin trading - Wikipedia

    en.wikipedia.org/wiki/Pin_trading

    The Olympic Games has a long tradition of pin trading, [3] sometimes called the "unofficial sport" of the Games, [8] [9] which is open to all. [3] Each year, between 5,000 and 6,000 new designs of pin are created for the games, [10] usually by nations, teams, brand sponsors, [11] media organizations, [10] and the International Olympic Committee (IOC) itself. [12]