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 - [![Open-Source Software][OSS Icon]](http://gcompris.net/wiki/Developer%27s_corner) [Gcompris](http://gcompris.net/index-en.html) - GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10.
 - [![Open-Source Software][OSS Icon]](https://github.com/geogebra/geogebra) [Geogebra](https://www.geogebra.org/download) - The graphing calculator for functions, geometry, algebra, calculus, statistics and 3D mathematics.
 - [![Open-Source Software][OSS Icon]](https://wiki.gnome.org/Apps/Dictionary) [Gnome-dictionary](https://wiki.gnome.org/Apps/Dictionary) - A powerful dictionary for GNOME.
+- [![Open-Source Software][OSS Icon]](http://opensis.sourceforge.net/) [GNU Octave](http://www.gnu.org/software/octave/) - GNU Octave is a scientific programming language, primarily intended for numerical computations, that is mostly compatible with MATLAB.
 - [![Open-Source Software][OSS Icon]](http://ftp.gnu.org/gnu/gtypist/) [GNU Typist](https://www.gnu.org/software/gtypist/index.html) - ncurses-based free-software typing instructor
 - [![Open-Source Software][OSS Icon]](https://github.com/kinitrupti/GNUKhata) [GNUKhata](http://www.gnukhata.in/) - Open source accounting software.
 - [Google Earth](https://itsfoss.com/install-google-earth-ubunu/) - Google Earth is a virtual globe, map and geographical information program.