After the third line of the differentiation above, the typical method from Newton through the 19th century would have been simply to discard the dx2 term.
Yllä olevan differentioinnin kolmannen rivin jälkeen, tyypillinen metodi Newtonista läpi 19:n vuosisadan on yksinkertaisesti hylätä ( d x ) 2 {\displaystyle (dx)^{2}} termi.