__ 1675: __Gottfried Leibniz writes the integral sign ∫ in an unpublished manuscript, introducing the calculus notation that's still in use today. Leibniz was a German mathematician and philosopher ...

SOPH. Ant. 322 et seq. “MANY things are wonderful,” says the Greek poet, “ but nought more wonderful than man, all-inventive man!” And surely, among many wonders wrought out by human endeavor, there ...

THIS book seems well adapted to serve as a text-book for a first course in the differential and integral calculus. Fourteen chapters deal with the differential calculus and its applications to maxima ...