How To Install libnfft3-double2 on Ubuntu 18.04

In this tutorial we learn how to install libnfft3-double2 on Ubuntu 18.04. libnfft3-double2 is library for computing non-uniform Fourier transforms (double precision)

Introduction

In this tutorial we learn how to install libnfft3-double2 on Ubuntu 18.04.

What is libnfft3-double2

libnfft3-double2 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 shared library compiled with double precision.

There are three methods to install libnfft3-double2 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-double2 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-double2 using apt-get by running the following command:

sudo apt-get -y install libnfft3-double2

Install libnfft3-double2 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libnfft3-double2 using apt by running the following command:

sudo apt -y install libnfft3-double2

Install libnfft3-double2 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-double2 using aptitude by running the following command:

sudo aptitude -y install libnfft3-double2

How To Uninstall libnfft3-double2 on Ubuntu 18.04

To uninstall only the libnfft3-double2 package we can use the following command:

sudo apt-get remove libnfft3-double2

Uninstall libnfft3-double2 And Its Dependencies

To uninstall libnfft3-double2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libnfft3-double2

Remove libnfft3-double2 Configurations and Data

To remove libnfft3-double2 configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libnfft3-double2

Remove libnfft3-double2 configuration, data, and all of its dependencies

We can use the following command to remove libnfft3-double2 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libnfft3-double2

References

Summary

In this tutorial we learn how to install libnfft3-double2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.