Over the course of about an hour and a half, I explain the value of Pi, trigonometry, and the basics of pre-calculus to the extremely enthusiastic scholar.
I would teach him more, but there's not much else I know. I mean I kinda died right at the start of sophomore year so I only have two semesters under me.
However, based on the absolute glee contained within the man's face, I think this is more than enough.
"Young man, your name and clan shall go down in the annals of history. This is truly revolutionary knowledge. I can't even imagine the things that those who are smarter than you and I can do with formulas and things such as these. Truly it makes not only complicated calculations infinitely easier but also streamlines processes that could take certain scholars hours to complete." Severus said, his eyes still shining, this time not only with greed but also a deep appreciation. Did I go too far? Ehh what harm can a little bit of modern math do anyway?