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  2. Dagger (mark) - Wikipedia

    en.wikipedia.org/wiki/Dagger_(mark)

    A dagger, obelisk, or obelus † is a typographical mark that usually indicates a footnote if an asterisk has already been used. [1] The symbol is also used to indicate death (of people) or extinction (of species or languages). [ 2 ]

  3. Sentinel value - Wikipedia

    en.wikipedia.org/wiki/Sentinel_value

    The sentinel value is a form of in-band data that makes it possible to detect the end of the data when no out-of-band data (such as an explicit size indication) is provided. The value should be selected in such a way that it is guaranteed to be distinct from all legal data values since otherwise, the presence of such values would prematurely ...

  4. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    It is a list where the last node pointer points to the first node (i.e., the "next link" pointer of the last node has the memory address of the first node). A circular linked list. In the case of a circular doubly linked list, the first node also points to the last node of the list.

  5. Python (mythology) - Wikipedia

    en.wikipedia.org/wiki/Python_(mythology)

    In Greek mythology, Python (Greek: Πύθων; gen. Πύθωνος) was the serpent , sometimes represented as a medieval -style dragon , living at the center of the Earth , believed by the ancient Greeks to be at Delphi .

  6. Sentinel node - Wikipedia

    en.wikipedia.org/wiki/Sentinel_node

    Below are two versions of a subroutine (implemented in the C programming language) for looking up a given search key in a singly linked list. The first one uses the sentinel value NULL, and the second one a (pointer to the) sentinel node Sentinel, as the end-of-list indicator. The declarations of the singly linked list data structure and the ...

  7. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})

  8. Obeliscus Pamphilius - Wikipedia

    en.wikipedia.org/wiki/Obeliscus_Pamphilius

    At the time, nobody was aware of the connection between Domitian and the obelisk, and it was known as the 'Pamphilj obelisk' after the Pope's family name. It was only in 1827 that Champollion succeeded in translating the hieroglyphs, revealing that they included the names of Domitian, his father Vespasian and his brother Titus .

  9. Interpretations of 2001: A Space Odyssey - Wikipedia

    en.wikipedia.org/wiki/Interpretations_of_2001:_A...

    The second encounter also suggests the triggering of the monolith's radio signal to Jupiter by the presence of humans, [36] echoing the premise of Clarke's source story "The Sentinel". In the most literal narrative sense, as found in the concurrently written novel, the Monolith is a tool, an artifact of an alien civilisation.