@spikeyxxx Thanks for your explanations, the link and the tip about “Vector Math”. Assembly Programming is another project on my To-Do-List 😉:

And in Blender it’s the “Math Function” in the “Extra Mesh Objects” and here again especially the “XYZ Surface” that interests me:

And my last project is to install Linux on my laptop in order to get rid of Windows. @spikeyxxx Do you maybe have a recommendation and a good program under Linux for working with Word documents? Are there good instructions for setting this up as well as for a proper data transfer?