How To Install fftw2 on Ubuntu 22.04

In this tutorial we learn how to install fftw2 on Ubuntu 22.04. fftw2 is library for computing Fast Fourier Transforms

Introduction

In this tutorial we learn how to install fftw2 on Ubuntu 22.04.

What is fftw2

fftw2 is:

This library computes Fast Fourier Transforms (FFT) in one or more dimensions. It is extremely fast. This package contains the shared library version of the fftw libraries in double precision.

To get the static library and the header files you need to install fftw-dev.

For documentation and test programs, install fftw-docs

There are three methods to install fftw2 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 fftw2 Using apt-get

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

sudo apt-get update

After updating apt database, We can install fftw2 using apt-get by running the following command:

sudo apt-get -y install fftw2

Install fftw2 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install fftw2 using apt by running the following command:

sudo apt -y install fftw2

Install fftw2 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 fftw2 using aptitude by running the following command:

sudo aptitude -y install fftw2

How To Uninstall fftw2 on Ubuntu 22.04

To uninstall only the fftw2 package we can use the following command:

sudo apt-get remove fftw2

Uninstall fftw2 And Its Dependencies

To uninstall fftw2 and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove fftw2

Remove fftw2 Configurations and Data

To remove fftw2 configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge fftw2

Remove fftw2 configuration, data, and all of its dependencies

We can use the following command to remove fftw2 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge fftw2

References

Summary

In this tutorial we learn how to install fftw2 package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.