THE ancient Greeks determined various areas and volumes by a method known as that of exhaustion; but they had no integral calculus properly so called, any more, than (pace Prof. Burnet) they had a ...

Go to updated and illustrated post. __1675: __Gottfried Leibniz writes the integral sign ∫ in an unpublished manuscript, introducing the calculus notation that's still in use today. Leibniz was a ...

__1675: __Gottfried Leibniz writes the integral sign ∫in an unpublished manuscript, introducing the calculus notation that's still in use today.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 who ...