Octave

[3D graph] [Lorenz Attractor] GNU Octave is a high-level language, primarily intended for numerical computations. 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. It may also be used as a batch-oriented language.

For more information, see the page about Octave.

Current News

October 2, 2006: Version 2.9.9 is now available for ftp. [Mailing List Thread]
August 24, 2006: Version 2.9.8 is now available for ftp. [Mailing List Thread]
July 28, 2006: Version 2.9.7 is now available for ftp. [Mailing List Thread]
July 27, 2006: Fairly complete support for Matlab's MEX interface has been added to the Octave CVS archive and will be part of the 2.9.7 shapshot. Please see [Mailing List Thread] for more details.
June 29, 2006: Please see this [Mailing List Thread] if you are having trouble compiling Octave 2.9.6 with GCC 3.x. After applying the patch, you'll need to run autogen.sh and configure again. This means you'll need to have a recent version of autoconf installed. Or, you can upgrade to GCC 4.x or you can wait for 2.9.7. So many options!
June 9, 2006: Version 2.9.6 is now available for ftp. [Mailing List Thread]
May 26, 2006: Function file cacheing has been improved with hopefully major speedups when calling m-file functions. [Mailing List Thread]
May 21, 2006: Octave-forge is being cleaned up by moving core functions into the main Octave distribution. [Mailing List Thread]
May 11, 2006: Path manipulation was significantly cleaned up. Now instead of manipulating the LOADPATH variable, you can use the addpath, rmpath, and path functions. [Mailing List Thread]

For older news, see the news archive.