GNU Octave is a high-level interpreted language, primarily intended for numerical computations. It provides capabilities for the numerical solution of linear and nonlinear problems, and for performing other numerical experiments. It also provides extensive graphics capabilities for data visualization and manipulation. Octave is normally used through its interactive command line interface, but it can also be used to write non-interactive programs. The Octave language is quite similar to Matlab so that most programs are easily portable.
Octave is distributed under the terms of the GNU General Public License.
May 29, 2015 — Octave 4.0.0 Released
Version 4.0.0 has been released and is now available for download. Octave 4.0 is a major new release with many new features, including a graphical user interface, support for classdef object-oriented programming, better compatibility with Matlab, and many new and improved functions.
An official Windows binary installer is also available from ftp://ftp.gnu.org/gnu/octave/windows/octave-4.0.0_0-installer.exe
A list of important user-visible changes is availble at http://octave.org/NEWS-4.0.html, by selecting the Release Notes item in the News menu of the GUI, or by typing news at the Octave command prompt.
Thanks to the many people who contributed to this release!