OTP app vs plain module about geocalc

[yltsrc]

Actually not,
but one of the functions (intersection_point) can crash with some special arguments (and I have guards around that place) so I planned to remove them and make it 100% the same as in the original javascript version and let it crash

So it is the actual question and I can't find an answer when to use OTP and when I should not

BTW: version 0.4.0 was implemented without OTP

[grin]

According to this comment: https://www.amberbit.com/blog/2016/5/10/creating-elixir-libraries-as-otp-applications/#comment-2677186959 all libraries should be an OTP app, but not all libraries should have the supervision tree.

Libraries that don't start any processes thus don't need supervision trees are called library application (as per https://elixirforum.com/t/design-otp-app-vs-modules-of-pure-functions/869/4).

[yltsrc]

#32