I guess this must be true, but from the sidelines it seems that “the set of points 1 metre from this particular point” and “the solution to this particular seco

I guess this must be true, but from the sidelines it seems that “the set of points 1 metre from this particular point” and “the solution to this particular second-order differential equation” are quite different things. Any competent student of mathematics can connect them for sure, but it’s still quite remarkable they’re related isn’t it?