concalc software package provides console calculator, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install concalc
concalc is installed in your system.
Make ensure the concalc package were installed using the commands given below,
$ sudo dpkg-query -l | grep concalc *
You will get with concalc package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Mathematics |
| Package | concalc |
| Version | 0.9.2-2 |
| Description | console calculator |
| Sub Section | math |