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      GNU Octave
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    <h3>Scientific Programming Language</h3>
    <ul>
      <li>Powerful mathematics-oriented syntax with built-in plotting and visualization tools</li>
      <li>Free software, runs on GNU/Linux, Mac, BSD, and Windows</li>
      <li>Drop-in compatible with many Matlab scripts</li>
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### Syntax Examples

The Octave syntax is largely compatible with
[Matlab](https://www.mathworks.com/matlab).
The Octave interpreter can be run in GUI mode, as a console,
or invoked as part of a shell script.

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      Solve systems of equations with linear algebra operations on
      <strong>vectors</strong> and <strong>matrices</strong>
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{% highlight matlab%}
b = [4; 9; 2] % Column vector
A = [ 3 4 5;
      1 3 1;
      3 5 9 ]
x = A \ b     % Solve the system by inverting A
{% endhighlight %}
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        Visualize data with <strong>high-level plot commands</strong>
        in 2D and 3D
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{% highlight matlab %}
x = -10:0.1:10 % Create an evenly-spaced vector from -10..10
y = sin(x)     % y is also a vector
plot(x,y)
{% endhighlight %}
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### Install

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### Octave Forge

[Octave Forge](http://octave.sourceforge.net/)
is a central location for development of packages for GNU Octave,
similar to Matlab's toolboxes.
To install a package, use the pkg command from the Octave prompt by typing:

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{% highlight text %}
pkg install -forge package_name
pkg load package_name
{% endhighlight %}
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  <a href="http://octave.sourceforge.net/packages.php" class="button expand">Browse Packages</a>
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### Development

Octave is free software licensed under the
[GNU General Public License (GPL)](http://www.gnu.org/copyleft/gpl.html).
Assuming you have Mercurial installed on your machine
you may obtain the latest development version of Octave sources
with the following command:

{% highlight text %}
hg clone http://www.octave.org/hg/octave
{% endhighlight %}

If you want to participate in Octave development, join the
[maintainers@octave.org](https://lists.gnu.org/mailman/listinfo/octave-maintainers)
mailing list.


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