How to Install SageMath on Xubuntu 16.04 Xenial GNU+Linux

Installing

2. 2. Setting Up Repository

   Enable the SageMath Xubuntu PPA Repository

   Enabled SageMath Xubuntu PPA

   SageMath PPA Repo Setup

3. 3. Installing

   Then to Install SageMath for Xubuntu
   Simply run:

   sudo apt install sagemath-upstream-binary

   If Got “User is Not in Sudoers file” then see: How to Enable sudo