After installing Matlab on a Linux machine, i recommend you to do this steps. Please analyze each of them and the responsibility (as always) is on your fingers.
But this should cause any harm:
wget ‘https://help.ubuntu.com/community/MATLAB?action=AttachFile&do=get&target=matlab-r2011a.desktop’ -O /usr/share/applications/matlab.desktop
wget http://upload.wikimedia.org/wikipedia/commons/2/21/Matlab_Logo.png -O /usr/share/icons/matlab.png
And you can modify the Desktop Icon and set it up to run as a terminal program and with this path: /usr/local/MATLAB/R2013a/bin/matlab