How To Install libnfft3-doc on Ubuntu 18.04

In this tutorial we learn how to install libnfft3-doc on Ubuntu 18.04. libnfft3-doc is documentation for the NFFT library

Introduction

In this tutorial we learn how to install libnfft3-doc on Ubuntu 18.04.

What is libnfft3-doc

libnfft3-doc is:

NFFT3 is a software library written in C for computing nonequispaced fast Fourier and related transformations. In detail, NFFT3 implements:

  1. The nonequispaced fast Fourier transform (NFFT)

    • the forward transform (NFFT)
    • the adjoint transform (adjoint NFFT)

  2. Generalisations of the NFFT

    • to arbitrary knots in time and frequency domain (NNFFT)
    • to the sphere S^2 (NFSFT)
    • to the hyperbolic cross (NSFFT)
    • to real-valued data, i.e. (co)sine transforms, (NFCT, NFST)
    • to the rotation group (NFSOFT)

  3. Generalised inverses based on iterative methods, e.g. CGNR, CGNE

  4. Applications in

    • medical imaging (i) magnetic resonance imaging (ii) computerised tomography
    • summation schemes (i) fast Gauss transform (FGT) (ii) singular kernels (iii) zonal kernels
    • polar FFT, discrete Radon transform, ridgelet transform

This package provides the documentation for the NFFT library.

There are three methods to install libnfft3-doc 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 libnfft3-doc Using apt-get

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

sudo apt-get update

After updating apt database, We can install libnfft3-doc using apt-get by running the following command:

sudo apt-get -y install libnfft3-doc

Install libnfft3-doc Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libnfft3-doc using apt by running the following command:

sudo apt -y install libnfft3-doc

Install libnfft3-doc 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 libnfft3-doc using aptitude by running the following command:

sudo aptitude -y install libnfft3-doc

How To Uninstall libnfft3-doc on Ubuntu 18.04

To uninstall only the libnfft3-doc package we can use the following command:

sudo apt-get remove libnfft3-doc

Uninstall libnfft3-doc And Its Dependencies

To uninstall libnfft3-doc and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libnfft3-doc

Remove libnfft3-doc Configurations and Data

To remove libnfft3-doc configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libnfft3-doc

Remove libnfft3-doc configuration, data, and all of its dependencies

We can use the following command to remove libnfft3-doc configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libnfft3-doc

References

Summary

In this tutorial we learn how to install libnfft3-doc package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.