Customiser: YATNAG - Yet Another "This is Not A Thing"

This thing is not a thing. I only made it to visualize the results of calculation for nozzle positioning as done with delta printers. As side effect, the needed elementary geometry calculations are put as functions into this source.
I uploaded it as customisable "thing" to thingiverse because I could easily add sliders for positioning that way, and play with it. Alas, what I was mostly interested in, I can't see as customiser: how do minimal elevation steps affect nozzle positioning precision.