How To Install freefem++ on Ubuntu 20.04
Introduction
In this tutorial we learn how to install freefem++ on Ubuntu 20.04.
What is freefem++
freefem++ is:
FreeFem++ is an implementation of a language dedicated to the finite element method. It enables you to solve Partial Differential Equations (PDE) easily.
Problems involving PDE from several branches of physics such as fluid-structure interactions require interpolations of data on several meshes and their manipulation within one program. FreeFem++ includes a fast quadtree-based interpolation algorithm and a language for the manipulation of these data on multiple meshes. It contains also a powerful mesh generation and adaption tool integrated seamlessly in FreeFem++ called bamg.
FreeFem++ is written in C++ and the FreeFem++ language is a C++ idiom allowing for a smooth learning curve.
This package contains the executables of FreeFem++.
There are three methods to install freefem++ 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 freefem++ Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install freefem++ using apt-get by running the following command:
sudo apt-get -y install freefem++
Install freefem++ Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install freefem++ using apt by running the following command:
sudo apt -y install freefem++
Install freefem++ 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 freefem++ using aptitude by running the following command:
sudo aptitude -y install freefem++
How To Uninstall freefem++ on Ubuntu 20.04
To uninstall only the freefem++ package we can use the following command:
sudo apt-get remove freefem++
Uninstall freefem++ And Its Dependencies
To uninstall freefem++ and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove freefem++
Remove freefem++ Configurations and Data
To remove freefem++ configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge freefem++
Remove freefem++ configuration, data, and all of its dependencies
We can use the following command to remove freefem++ configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge freefem++
References
Summary
In this tutorial we learn how to install freefem++ package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
