In the seventeenth century, Isaac Newton and Gottfried Wilhelm Leibniz independently discovered the idea that integration was a sort of opposite of differentiation (which they had just invented), which allowed mathematicians to calculate a broad class of integrals for the first time.
Integration was a sort of opposite of differentiation (which they had just invented). Isaac Newton independently discovered the idea this. This was in the seventeenth century. Gottfried Wilhelm Leibniz independently discovered the idea this. This was in the seventeenth century. A sort of opposite of differentiation (which they had just invented) allowed mathematicians. This was to calculate a broad class of integrals for the first time.