How To Install libint2-2 on Debian 11

In this tutorial we learn how to install libint2-2 on Debian 11. libint2-2 is Computation Chemistry Integral Evaluation Library

Introduction

In this tutorial we learn how to install libint2-2 on Debian 11.

What is libint2-2

libint2-2 is:

The LIBINT library is used to evaluate the traditional (electron repulsion) and certain novel two-body matrix elements (integrals) over Cartesian Gaussian functions used in modern atomic and molecular theory. The idea of the library is to let computer write optimized code for computing such integrals. There are two primary advantages to this: much less human effort is required to write code for computing new integrals, and code can be optimized specifically for a particular computer architecture (e.g., vector processor).

LIBINT has been utilized to implement methods such as Hartree-Fock (HF) and Kohn-Sham density functional theory (KS DFT), second-order Moeller-Plesset perturbation theory (MP2), coupled cluster singles and doubles (CCSD) method, as well as explicitly correlated R12 methods.

This package contains the shared library.

There are three methods to install libint2-2 on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libint2-2 Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install libint2-2 using apt-get by running the following command:

sudo apt-get -y install libint2-2

Install libint2-2 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libint2-2 using apt by running the following command:

sudo apt -y install libint2-2

Install libint2-2 Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install libint2-2 using aptitude by running the following command:

sudo aptitude -y install libint2-2

How To Uninstall libint2-2 on Debian 11

To uninstall only the libint2-2 package we can use the following command:

sudo apt-get remove libint2-2

Uninstall libint2-2 And Its Dependencies

To uninstall libint2-2 and its dependencies that are no longer needed by Debian 11, we can use the command below:

sudo apt-get -y autoremove libint2-2

Remove libint2-2 Configurations and Data

To remove libint2-2 configuration and data from Debian 11 we can use the following command:

sudo apt-get -y purge libint2-2

Remove libint2-2 configuration, data, and all of its dependencies

We can use the following command to remove libint2-2 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libint2-2

Dependencies

libint2-2 have the following dependencies:

References

Summary

In this tutorial we learn how to install libint2-2 package on Debian 11 using different package management tools: apt, apt-get and aptitude.