How To Install libcqrlib2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libcqrlib2 on Ubuntu 18.04.
What is libcqrlib2
libcqrlib2 is:
Quaternions are four-dimensional numbers which form an associative normed division algebra over the real numbers. Unit quaternions are a convenient and efficient way to represent orientations and rotations in three dimensions.
CQRlib is an ANSI C implementation of a utility library for quaternion arithmetic and quaternion rotation math.
There are three methods to install libcqrlib2 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libcqrlib2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libcqrlib2 using apt-get by running the following command:
sudo apt-get -y install libcqrlib2
Install libcqrlib2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libcqrlib2 using apt by running the following command:
sudo apt -y install libcqrlib2
Install libcqrlib2 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 libcqrlib2 using aptitude by running the following command:
sudo aptitude -y install libcqrlib2
How To Uninstall libcqrlib2 on Ubuntu 18.04
To uninstall only the libcqrlib2 package we can use the following command:
sudo apt-get remove libcqrlib2
Uninstall libcqrlib2 And Its Dependencies
To uninstall libcqrlib2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libcqrlib2
Remove libcqrlib2 Configurations and Data
To remove libcqrlib2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libcqrlib2
Remove libcqrlib2 configuration, data, and all of its dependencies
We can use the following command to remove libcqrlib2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libcqrlib2
References
Summary
In this tutorial we learn how to install libcqrlib2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
