$ sudo apt-get remove libgecodegist36 

Uninstall libgecodegist36 including dependent package

If you would like to remove libgecodegist36 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libgecodegist36 

Use Purging libgecodegist36

If you use with purge options to libgecodegist36 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libgecodegist36 

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 libgecodegist36 

See Also,