The details of the Calculus were not worked out until decades after Newton and Leibniz: http://en.wikipedia.org/wiki/Mathematical_analysis http://en.wikipedia.o

The details of the Calculus were not worked out until decades after Newton and Leibniz: http://en.wikipedia.org/wiki/Mathematical_analysis http://en.wikipedia.org/wiki/Mathematical_analysis. However, the notation that most people use to denote infinitesimals and differentiation is Leibniz's notation: http://en.wikipedia.org/wiki/Leibnizs_notation http://en.wikipedia.org/wiki/Leibnizs_notation