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  2. Big O notation - Wikipedia

    en.wikipedia.org/wiki/Big_O_notation

    Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. Big O is a member of a family of notations invented by German mathematicians Paul Bachmann, [1] Edmund Landau, [2] and others, collectively called Bachmann–Landau notation or asymptotic notation.

  3. Hash mark (sports) - Wikipedia

    en.wikipedia.org/wiki/Hash_mark_(sports)

    In American football and Canadian football, the hash marks are two rows of lines near the middle of the field that are parallel to the side lines.These small lines (4 in [10 cm] wide by 2 ft [61 cm] long) are used to mark the 1-yard sections between each of the 5-yard lines, which go from sideline to sideline.

  4. Tennis court - Wikipedia

    en.wikipedia.org/wiki/Tennis_court

    The ball must completely miss the line to be considered "out". This also means that the width of the line (except for the center service line) is irrelevant to play. The center service line is 2 in (5 cm), the other lines are between 1 and 2 in (3 and 5 cm) wide, whereas the baseline may be up to 4 in (10 cm) wide. [1]

  5. USTA Billie Jean King National Tennis Center - Wikipedia

    en.wikipedia.org/wiki/USTA_Billie_Jean_King...

    In 2006, at the location of the old indoor tennis building near the East Gate, work began on a 245,000-square-foot, multi-purpose tennis pavilion. [1] The new facility was completed in 2008 [2] and includes 12 courts, classrooms, fitness facilities, and a pro shop. [1] It also includes a hospitality center, museum, and food commissary. [1]

  6. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    In many applications, the range of hash values may be different for each run of the program or may change along the same run (for instance, when a hash table needs to be expanded). In those situations, one needs a hash function which takes two parameters—the input data z , and the number n of allowed hash values.

  7. Python (programming language) - Wikipedia

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

    Since 7 October 2024, Python 3.13 is the latest stable release, and it and, for few more months, 3.12 are the only releases with active support including for bug fixes (as opposed to just for security) and Python 3.9, [55] is the oldest supported version of Python (albeit in the 'security support' phase), due to Python 3.8 reaching end-of-life.

  8. Checksum - Wikipedia

    en.wikipedia.org/wiki/Checksum

    This is especially true of cryptographic hash functions, which may be used to detect many data corruption errors and verify overall data integrity; if the computed checksum for the current data input matches the stored value of a previously computed checksum, there is a very high probability the data has not been accidentally altered or corrupted.

  9. China National Tennis Center - Wikipedia

    en.wikipedia.org/wiki/China_National_Tennis_Center

    Aerial view of the center in 2019 Lotus Court during the 2008 Summer Olympics. The center is located in Beijing, just 1.7 miles (2.7 km) from the National Stadium (a.k.a. The Birds Nest Stadium). The tennis center covers an area of 41.22 acres (166,800 m 2) with a floor space of 285,394 sq ft (26,514.0 m 2). The center currently has 12 ...