How to Install SageMath on Ubuntu 18.04 Bionic LTS Easy Guide

Installing

2. 2. Setting Up SageMath Repository

   Enable the SageMath Ubuntu PPA Repository

   Enabled SageMath Ubuntu PPA

   SageMath PPA Repo Setup

3. 3. Installing SageMath

   Then to Install SageMath for Ubuntu
   Simply run:

   sudo apt install sagemath-upstream-binary

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.