apcalc software package provides Arbitrary precision calculator (original name: calc), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install apcalc
apcalc is installed in your system.
Make ensure the apcalc package were installed using the commands given below,
$ sudo dpkg-query -l | grep apcalc *
You will get with apcalc package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Mathematics |
| Package | apcalc |
| Version | 2.12.5.0-1 |
| Description | Arbitrary precision calculator (original name: calc) |
| Sub Section | Math |