Bonaventura Cavalieri, in his work Geometria degli Indivisibili, in the case of the function x^2 which defines a parabola, finds that the antiderivative (the integral we use today) is simply X^3/3.
Bonaventura Cavalieri, in his work Geometria degli Indivisibili, in the case of the function x^2 which defines a parabola, finds that the antiderivative (the integral we use today) is simply X^3/3.