$ sudo apt-get update
$ sudo apt-get install libmath-basecnv-perl 

libmath-basecnv-perl is installed in your system.

Make ensure the libmath-basecnv-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libmath-basecnv-perl *

You will get with libmath-basecnv-perl package name, version, architecture and description in a table

libmath-basecnv-perl package basic information: