Command-Line - Spooky Math
Learn how to do math (nothing too complicated) in the command line but  with a Halloween theme. I'll be using Python 3, bsd-games (for primes),  gperiodic, units, sc, and gnuplot on a Linux system.

The tmux setup: 

tmux new-session \; set -g mouse on \; split-window -v -p 50  /path/to/gperiodScript \; split-window -hf -p 63 python3 \; split-window  -h -p 60 units \; split-window -v -p 80 sc \; split-window -v -p 65  gnuplot \; attach  

The gperiodic script:  

More details: