I like the idea of modularity. If I’m going open source, I may as well make everything modular and upgradable. Even if the whole system won’t last for life, I won’t be throwing out an entire device to upgrade just one part.
Thanks for the link. I haven’t seen anything quite so detailed and helpful before.
If you’re trying to calculate it, then it’s quite difficult.
If you just want to use it in a computer program, most programming languages have it as a constant you can request. You get to pick whether you want single or double precision, but both are atomic (a single instruction) on modern computers.