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  2. List of open-source software for mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    Xcas/Giac is an open-source project developed at the Joseph Fourier University of Grenoble since 2000. Written in C++, maintained by Bernard Parisse's et al. and available for Windows, Mac, Linux and many others platforms. It has a compatibility mode with Maple, Derive and MuPAD software and TI-89, TI-92 and Voyage 200 calculators.

  3. Symfony - Wikipedia

    en.wikipedia.org/wiki/Symfony

    symfony .com. Symfony is a free and open-source PHP web application framework and a set of reusable PHP component libraries. It was published as free software on October 18, 2005, and released under the MIT License .

  4. Scratch (programming language) - Wikipedia

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

    Scratch Week is a series focusing on Scratch activities on the Scratch website. [47] Every April Fools' Day, the Scratch Team will play pranks on users and add Easter eggs, one example being that all event blocks in projects turn into cat versions of the same blocks.

  5. Comparison of free and open-source software licenses

    en.wikipedia.org/wiki/Comparison_of_free_and...

    The Open Source Initiative (OSI) is one such organization keeping a list of open-source licenses. [ 1] The Free Software Foundation (FSF) maintains a list of what it considers free. [ 2] FSF's free software and OSI's open-source licenses together are called FOSS licenses. There are licenses accepted by the OSI which are not free as per the Free ...

  6. KDevelop - Wikipedia

    en.wikipedia.org/wiki/KDevelop

    KDevelop is a free and open-source [5] integrated development environment (IDE) for Unix-like computer operating systems and Windows. It provides editing, navigation and debugging features for several programming languages, and integration with build automation and version-control systems, using a plugin -based architecture. [6]

  7. Open-source software - Wikipedia

    en.wikipedia.org/wiki/Open-source_software

    Open-source software ( OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. [1] [2] Open-source software may be developed in a collaborative, public manner.

  8. History of free and open-source software - Wikipedia

    en.wikipedia.org/wiki/History_of_free_and_open...

    The history of free and open-source software begins at the advent of computer software in the early half of the 20th century. In the 1950s and 1960s, computer operating software and compilers were delivered as a part of hardware purchases without separate fees. At the time, source code —the human-readable form of software—was generally ...

  9. PHP syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/PHP_syntax_and_semantics

    PHP generally follows C syntax, with exceptions and enhancements for its main use in web development, which makes heavy use of string manipulation. PHP variables must be prefixed by " $ ". This allows PHP to perform string interpolation in double quoted strings, where backslash is supported as an escape character.