Hi,
I got your message. I have made the code for [1] available here: https://github.com/delton137/Breit_Rabi_Zeeman_Plotter I put a GNU GPL v2 license on the code, which basically means anyone is able to use & modify the code as long as you disclose the original author. The code may be hard to read, but I tested it and it still works. You can read about the license here: http://choosealicense.com/licenses/gpl-2.0/
![[1]](https://commons.wikimedia.org/wiki/File:Breit-rabi-Zeeman.png#){kind=link}