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# Title: Leibniz-Handschriften zur Mathematik LH 35, 11, 18C
# Folio 96r, page id 00068193:0193
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um
exites
Attot
su
E
ia
Edc
eto
II
via
Ute
ut
est
Mo-
qua
er
a
tadi
ibeat
lide
trum
ejum
169
De Tractu seu spatio et.
ejus, circa auem immotum gyratarum tractus, sint iptusmo-
bilis aut partium ejus circa eundem aaem gyratarum tractibus
M
portionales.
Transferatur huc figura et constructio ad prop. 16. de
ductibus, sumaturque MdC non ut illic praescribitur, sed propor-
tionalis sectioni mobilis per superficiem eylindricam, et fi-
C
gura plana ANS erit qua sita, ut contideranti patet.
Prop. 14: Probl. 3.
Cahibere figuram tractui mobilis circa auem immo-
tum gyrati proportionalem.
Si figuram planam portulamus, tantum in praecedenti fi-
C
gura et constructione, sumamus MM tales, ut tint in ratione
composita sectionum et dirtantiarum superficier ab axe; et
C
igura ANP erit quaesita. Sin solida simus contenti; fiat
V.
Cylinder rectus, cujus basis figura ANP conttruita seundum
problema praecedens, attitudo vero sit non minor mnaima M,
ad 
et per auem EQ transcat planum, quod planum ADE angulum
faciat semirettum, et ungula per C prius planum abseissa
seu portio cylindri inter plana duo et superficum eylondri com
prehensa erit solidum quae situm
us
l
Notum restilineum adcoque unitormiter dittributum dati
rabilis rioidi invenire cujus tractus sit tractur ejurdem mo–
C
bilis circadatum auem motum gyrantis aquans, seu m
venio longitudinem hjus traitus.
Figurae ANP construita secuntum probl. 2. seu propos. 16
de ductibus) insutat cylinder unqulae in probl. praeced. constru
etx