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  2. 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})

  3. RAR (file format) - Wikipedia

    en.wikipedia.org/wiki/RAR_(file_format)

    5.0 – supported by WinRAR 5.0 (released April 2013) and later. [7] Changes in this version: Maximum compression dictionary size increased to 1 GB (default for WinRAR 5.x is 32 MB and 4 MB for WinRAR 4.x). Maximum path length for files in RAR and ZIP archives is increased up to 2048 characters. Support for Unicode file names stored in UTF-8 ...

  4. List of archive formats - Wikipedia

    en.wikipedia.org/wiki/List_of_archive_formats

    File extension(s) [a] MIME type [b] Official name [c] Platform [d] Description .a, .ar application/x-archive Unix Archiver: Unix-like The traditional archive format on Unix-like systems, now used mainly for the creation of static libraries.

  5. List (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/List_(abstract_data_type)

    In computer science, a list or sequence is a collection of items that are finite in number and in a particular order. An instance of a list is a computer representation of the mathematical concept of a tuple or finite sequence. A list may contain the same value more than once, and each occurrence is considered a distinct item.

  6. Comparison of file archivers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_file_archivers

    The operating systems the archivers can run on without emulation or compatibility layer. Ubuntu's own GUI Archive manager, for example, can open and create many archive formats (including Rar archives) even to the extent of splitting into parts and encryption and ability to be read by the native program.

  7. Data compression - Wikipedia

    en.wikipedia.org/wiki/Data_compression

    Compression ratios are around 50–60% of the original size, [48] which is similar to those for generic lossless data compression. Lossless codecs use curve fitting or linear prediction as a basis for estimating the signal. Parameters describing the estimation and the difference between the estimation and the actual signal are coded separately ...

  8. 9 Questions Retirees Need To Ask Heading In to 2025 - AOL

    www.aol.com/9-questions-retirees-ask-heading...

    The bucket list might include something large like traveling far away, visiting a new restaurant, or learning a new language. Bucket list items don’t have to be expensive or challenging, but ...

  9. Lempel–Ziv–Markov chain algorithm - Wikipedia

    en.wikipedia.org/wiki/Lempel–Ziv–Markov_chain...

    40 indicates a 4 GB − 1 dictionary size; Even values less than 40 indicate a 2 v/2 + 12 bytes dictionary size; Odd values less than 40 indicate a 3×2 (v − 1)/2 + 11 bytes dictionary size; Values higher than 40 are invalid; LZMA2 data consists of packets starting with a control byte, with the following values: 0 denotes the end of the file ...