GNU Octave

Scientific Programming Language

Powerful mathematics-oriented syntax with built-in 2D/3D plotting and visualization tools
Free software, runs on GNU/Linux, macOS, BSD, and Microsoft Windows
Drop-in compatible with many Matlab scripts

Syntax Examples

The Octave syntax is largely compatible with Matlab.
The Octave interpreter can be run in
GUI mode, as a console,
or invoked as part of a shell script.
More Octave examples can be found in
the Octave wiki.

Solve systems of equations with linear algebra operations on
vectors and matrices.

b = [4; 9; 2] # Column vector
A = [ 3 4 5;
      1 3 1;
      3 5 9 ]
x = A  b     # Solve the system Ax = b

Visualize data with high-level plot commands
in 2D and 3D.

x = -10:0.1:10; # Create an evenly-spaced vector from -10..10
y = sin (x);    # y is also a vector
plot (x, y);
title ("Simple 2-D Plot");
xlabel ("x");
ylabel ("sin (x)");

Click here to see the plot output

Octave Packages

GNU Octave can be extended by packages. Find them at:

https://packages.octave.org/

Development

Octave is free software licensed under the
GNU General Public License (GPL).
Assuming you have Mercurial installed on your machine you may obtain the latest
development version of Octave sources with the following command: