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  2. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data. [1][2] Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents. On retrieval, the calculation is repeated ...

  3. Time signature - Wikipedia

    en.wikipedia.org/wiki/Time_signature

    Most time signatures consist of two numerals, one stacked above the other: The lower numeral indicates the note value that the signature is counting. This number is always a power of 2 (unless the time signature is irrational), usually 2, 4 or 8, but less often 16 is also used, usually in Baroque music. 2 corresponds to the half note (minim), 4 to the quarter note (crotchet), 8 to the eighth ...

  4. Alla breve - Wikipedia

    en.wikipedia.org/wiki/Alla_breve

    Examples of time signatures for common time. Alla breve [alla ˈbrɛːve] – also known as cut time or cut common time – is a musical meter notated by the time signature symbol (a C with a vertical line through it), which is the equivalent of 2. 2. [1] The term is Italian for "on the breve", originally meaning that the beat was counted on ...

  5. pandas (software) - Wikipedia

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

    Pandas (styled as pandas) is a software library written for the Python programming language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time series. It is free software released under the three-clause BSD license. [ 2 ]

  6. Duple and quadruple metre - Wikipedia

    en.wikipedia.org/wiki/Duple_and_quadruple_metre

    Duple metre (or Am. duple meter, also known as duple time) is a musical metre characterized by a primary division of 2 beats to the bar, usually indicated by 2 and multiples (simple) or 6 and multiples (compound) in the upper figure of the time signature, with 2. 2 (cut time), 2. 4, and 6. 8 (at a fast tempo) being the most common examples.

  7. Half-time (music) - Wikipedia

    en.wikipedia.org/wiki/Half-time_(music)

    In popular music, half-time is a type of meter and tempo that alters the rhythmic feel by essentially doubling the tempo resolution or metric division /level in comparison to common-time. Thus, two measures of 44 approximate a single measure of 88, while a single measure of 4/4 emulates 2/2. Half-time is not to be confused with alla breve or ...

  8. Magic number (programming) - Wikipedia

    en.wikipedia.org/wiki/Magic_number_(programming)

    In computer programming, a magic number is any of the following: A unique value with unexplained meaning or multiple occurrences which could (preferably) be replaced with a named constant. A constant numerical or text value used to identify a file format or protocol (for files, see List of file signatures)

  9. SymPy - Wikipedia

    en.wikipedia.org/wiki/SymPy

    Cross-platform. Type. Computer algebra system. License. New BSD License. Website. www.sympy.org. SymPy is an open-source Python library for symbolic computation. It provides computer algebra capabilities either as a standalone application, as a library to other applications, or live on the web as SymPy Live [2] or SymPy Gamma. [3]