Update ocatve to the latest version

[Peng Yu]

Hi,

The current octave version is fairly old, considering that the current
release is of version 3.6.2. Is there a reason that prevents the
update to a more recent version of octave? Thanks!

~$ port search octave
octave @3.2.4 (math, science)
    a Matlab-like environment for numerical analysis

http://www.gnu.org/software/octave/download.html
 GNU Octave 3.6.2 was released May 31, 2012.

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Regards,
Peng