Gnu Octave Installation and Usage

1. Install

under Linux command window:
sudo apt-get install octave
sudo apt-get install liboctave-dev

packages can be found at: 
http://octave.sourceforge.net/packages.php

download control package and save as control-2.6.3.tar.gz under Downloads directory.

sudo octave (to allow package installation)

and in octave prompt:

octave:1> pkg install control-2.6.3.tar.gz

octave:2 > pkg list

Package Name  | Version | Installation directory

--------------+---------+-----------------------

     control *|   2.6.3 | /usr/share/octave/packages/control-2.6.3

octave:> pkg load control
octave:>DEMOcontrol