Because Octave is free software you are encouraged to help make Octave more useful by writing and contributing additional functions for it, and by reporting any problems you may have.

You may redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation. GNU Octave is also freely redistributable software. It is easily extensible and customizable via user-defined functions written in Octave's own language, or using dynamically loaded modules written in C++, C, Fortran, or other languages. Octave has extensive tools for solving common numerical linear algebra problems, finding the roots of nonlinear equations, integrating ordinary functions, manipulating polynomials, and integrating ordinary differential and differential-algebraic equations. It may also be used as a batch-oriented language. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing other numerical experiments using a language that is mostly compatible with Matlab. Expands Octave's core functionality by providing field specific features via Octave's package system Image and signal processing, fuzzy logic, instrument control, and statistics and more full list of packages The project has been selected as SourceForge Project of the Month in October 2017. GNU Octave is a high-level language, primarily intended for numerical computations.

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