How To Install libtommath-dev on Ubuntu 18.04

In this tutorial we learn how to install libtommath-dev on Ubuntu 18.04. libtommath-dev is multiple-precision integer library [development files]

Introduction

In this tutorial we learn how to install libtommath-dev on Ubuntu 18.04.

What is libtommath-dev

libtommath-dev is:

LibTomMath is a C language library that provides a vast array of highly optimized functions for number theory; including:

  • Simple Algebra (Addition, Subtraction, Multiplication, Division)
  • Digit Manipulation (shift, binary AND/OR/XOR)
  • Modular Reduction (Barrett, Montgomery, DR, 2k)
  • Number Theory
    • Greatest Common Divisor
    • Least Common Multiple
    • Jacobi Symbol Computation
    • Multiplicative Inverse
    • Modular Exponentiation
    • Fermat & Miller-Rabin Primality Tests
  • Miscellaneous
    • Root finding over Z
    • Pseudo-random integers
    • Signed & Unsigned comparisons
    • Karatsuba and Toom-Cook multiplication algorithms
    • Fast Comba based Multiplier, Squaring and Montgomery routines

This package contains the files needed to create programs that use LibTomMath. It is not needed to merely execute programs that use LibTomMath.

There are three methods to install libtommath-dev 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 libtommath-dev Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install libtommath-dev

Install libtommath-dev Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install libtommath-dev

Install libtommath-dev 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 libtommath-dev using aptitude by running the following command:

sudo aptitude -y install libtommath-dev

How To Uninstall libtommath-dev on Ubuntu 18.04

To uninstall only the libtommath-dev package we can use the following command:

sudo apt-get remove libtommath-dev

Uninstall libtommath-dev And Its Dependencies

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

sudo apt-get -y autoremove libtommath-dev

Remove libtommath-dev Configurations and Data

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

sudo apt-get -y purge libtommath-dev

Remove libtommath-dev configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge libtommath-dev

References

Summary

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