How to uninstall or remove freemat-help software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed freemat-help package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove freemat-help

Uninstall freemat-help including dependent package

If you would like to remove freemat-help and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove freemat-help

Use Purging freemat-help

If you use with purge options to freemat-help package all the configuration and dependent packages will be removed.

$ sudo apt-get purge freemat-help

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove freemat-help