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# Title: Leibniz-Handschriften zur Mathematik LH 35, 11, 17
# Folio 2v, page id 00068190:0004
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dX significat elementum vel incrementum aut decrementum
(momentaneum) ipsius X (continue) crescentis aut de crescentis. Si militer
dy d(xy) significat tale etementum Vocatur et differentia, nempe
inter duas X, (inassignabiliter  seu elementariter differentes, dum una
fit ex altera (momentanee) crescente aut decrescente.. Similiter
d(xy) est tale elementum quantitatis xy continue crescentis
ddx est dif elementum elementi seu differentia differentiarum
nam ipsa quantitas dx non semper constans est, sed plerumque rursus (continue)
crescit aut decrescit. Et similiter procedi potest ad a dddx seu dX,
et ita porro. Imo potest occurrere de X, exponens differentiae indeterminatus
contrarium ipsius Elementi est, vel differentiae est summa, quoniam
quantitate continue decrescente donec evanescat, prima ejus
quantitas ipsa est semper summa omnium differentiarum sequentium
ut adeo sex i
fax idem quod X, similiter d sxdus idem est sit
Dantur et sammae summarum, velut
 itaque (xdu significataggregatum ex omnibus rectangulis, quorum
quod xdy.
cujus libet altitudo est X aliqs congitudo est X aliqua, et latitudo elementaris
est du ipsi X ordinatim respondens. Dantur et summae summarum
et ita porro, ut si sit Sdx saedy. vel f(dZ xdus