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# Title: Leibniz-Handschriften zur Mathematik LH 35, 8, 30
# Folio 89r, page id 00068124:0177
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De Modo excogitandi exempla infinita egudra
turarum specialitum hine generalibus succedent
super quae
est
impossibilesschirnhusilis demonstree susceperat
a recta AOsit emiciiculus ABCB cujuscentrum D
nqca in quadrante ADCA semiparabola
ADCFA et in quadrunte BDCGB semiparabola BDCHB
Normales quoteunque ad AD, nempe AL secent circulum in
E parabolam superiorem in F rectam AC in P, rectam AD
in Z, et aciam curvam ALR in L cujus aguae ea ent pro–
priatas, ut sit QL aequale 95+
0
dniliter nor
males qbotcunque ad BD necq   nempe NM secent
s
circulum in G, parabolam
inferiorem seu posteriorem in H
rectam BC in I, et rectam B)
in V curvas autem BNS et
BMa illam in N hanc in M.
quarumeuvarum natura erit
ut sit VN dupla ipsius VH
et VM aequ VN = YG.
 Dico figuram
ALABMR quadruri possi
est enum QL aeq. QF + QP+ D
e
et VM aequ cp ZVH = TC
et ADALA eq ADCFA + ADC
+ ACEA; Et BDRMB ay.
e bis BDCHB = BCGB. Est autem ADCFANeG. BDCHB
et ACEAaeqo BCGB ergo erit AD RLA + BD RMB+
seu R=ABMR aego ZADCFA + ADC est autem ADCFA
eq. Ddadio avatuor tertire di ADC, ergo erit demiue
dem 12 LAB MR aq. septem tertiis de ADC
sigamm