How To Install libint1 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libint1
on Ubuntu 20.04.
What is libint1
libint1 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 libint1
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install libint1 Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install libint1
using apt-get
by running the following command:
sudo apt-get -y install libint1
Install libint1 Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install libint1
using apt
by running the following command:
sudo apt -y install libint1
Install libint1 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 Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install libint1
using aptitude
by running the following command:
sudo aptitude -y install libint1
How To Uninstall libint1 on Ubuntu 20.04
To uninstall only the libint1
package we can use the following command:
sudo apt-get remove libint1
Uninstall libint1 And Its Dependencies
To uninstall libint1
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libint1
Remove libint1 Configurations and Data
To remove libint1
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libint1
Remove libint1 configuration, data, and all of its dependencies
We can use the following command to remove libint1
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libint1
References
Summary
In this tutorial we learn how to install libint1
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.