$ sudo apt-get remove libblas.so.3

Uninstall libblas.so.3 including dependent package

If you would like to remove libblas.so.3 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libblas.so.3

Use Purging libblas.so.3

If you use with purge options to libblas.so.3 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libblas.so.3

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 libblas.so.3

See Also,