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.
[GNU Octave](http://www.gnu.org/software/octave/)
# apt-get install octave
The toolbox are distributed separated, you can download it [here](http://octave.sourceforge.net/fuzzy-logic-toolkit/overview.html)
Run octave with root user
# octave
octave:1> pkg install fuzzy-logic-toolkit-0.4.2.tar.gz
For information about changes from previous versions of the fuzzy-logic-toolkit package, run 'news ("fuzzy-logic-toolkit")'.
More details (here)[http://www.gnu.org/software/octave/doc/interpreter/Installing-and-Removing-Packages.html]
[Fuzzy Logic Toolbox Docs](http://octave.sourceforge.net/fuzzy-logic-toolkit/overview.html)
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