$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install SageMath on Linux Mint 19 LTS Easy Guide

September 7, 2018 | By the+gnu+linux+evangelist.

Installing

  1. 2. Setting Up Repository

    Enable the SageMath Linux Mint PPA Repository

    Enabled SageMath Linux Mint PPA
  2. 3. Installing

    Then to Install SageMath for Linux Mint
    Simply run:

    sudo apt install sagemath-upstream-binary

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

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