How To Install lrslib on Ubuntu 22.04

In this tutorial we learn how to install lrslib on Ubuntu 22.04. lrslib is package to enumerate vertices and extreme rays of a convex polyhedron

Introduction

In this tutorial we learn how to install lrslib on Ubuntu 22.04.

What is lrslib

lrslib is:

A convex polyhedron is the set of points satisfying a finite family of linear inequalities. The study of the vertices and extreme rays of such systems is important and useful in e.g. mathematics and optimization. In a dual interpretation, finding the vertices of a (bounded) polyhedron is equivalent to finding the convex hull (bounding inequalities) of an (arbitrary dimensional) set of points. Lrs (lexicographic reverse search) has two important features that can be very important for certain applications: it works in exact arithmetic, and it consumes memory proportional to the input, no matter how large the output is.

There are three methods to install lrslib on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install lrslib Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install lrslib

Install lrslib Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install lrslib using apt by running the following command:

sudo apt -y install lrslib

Install lrslib 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 lrslib using aptitude by running the following command:

sudo aptitude -y install lrslib

How To Uninstall lrslib on Ubuntu 22.04

To uninstall only the lrslib package we can use the following command:

sudo apt-get remove lrslib

Uninstall lrslib And Its Dependencies

To uninstall lrslib and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove lrslib

Remove lrslib Configurations and Data

To remove lrslib configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge lrslib

Remove lrslib configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge lrslib

References

Summary

In this tutorial we learn how to install lrslib package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.