How can I remove matlab on Ubuntu 14.04

I can't uninstall matlab from my Ubuntu 14.04. When I run sudo apt-get purge matlab then it shows the matlab configuration page but when I cancel the installation process then it shows:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package 'matlab' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 148 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up matlab-support (0.0.19) ...
No default Matlab path found. Exiting.
dpkg: error processing package matlab-support (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 matlab-support
E: Sub-process /usr/bin/dpkg returned an error code (1)

How can I uninstall matlab?

You simply need to delete the folder that has your matlab installation. That's it.

However if you have a license manager you first need to shut it down and remove its files. I didn't need to do this but here you go:

• To shut it down: there should be a file called lmdown in your matlab folder in the etc folder. Run it.

• To remove its files: run sudo rm /var/tmp/lm_TMW*

Also you might want to remove symlinks to matlab binaries. Run:

rm /usr/local/bin/matlab /usr/local/bin/mcc /usr/local/bin/mex /usr/local/bin/mbuild

...Also don't forget to remove matlab-support. Run:

sudo apt-get purge matlab-support

Source

Run sudo apt-get purge matlab-support in a Terminal to remove it.