ergo software package provides Quantum chemistry program for large-scale calculations, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ergo
ergo is installed in your system.
Make ensure the ergo package were installed using the commands given below,
$ sudo dpkg-query -l | grep ergo *
You will get with ergo package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Science |
| Package | ergo |
| Version | 3.4.0-1+b1 [s390x], 3.4.0-1 [a |
| Description | Quantum chemistry program for large-scale calculations |
| Sub Section | Science |