Black-Scholes is relevant to any HN readers with stock options, but I agree that it doesn't belong on the list. And why isn't F=ma on the list? That seems really fundamental. (Maybe they didn't want Newton over-represented, but I'd pick that over gravitation.) And is Euler's Formula really important enough to be on the list? (genuine question) I'd put De Morgan's law on the list because of its importance to computers, but technically I guess it's not an equation.
You could lump it under #3, Calculus. Newton originally expressed using differential calculus as F = dp/dt, and developed his second law as an application of his newly-developed calculus.
> Newton originally expressed using differential calculus as F = dp/dt, and developed his second law as an application of his newly-developed calculus.
You used Leibnitz notation, Leibnitz kicked Newton's arse, and Newton was a complete arsehole.
