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# Title: Leibniz-Handschriften zur Mathematik LH 35, 13, 1
# Folio 355r, page id 00068196:0705
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De meis figuris segmentorur
Methodus qua usus sum ad segmenta figurarum dimetinda
semper utitis quotrescunus. certum aliquod punctum in figura inveniri,
potest a quoductae ad curvam rectae habeant certam proprietatem
ut sunt centra et foci semper enim intervallorum rectae a
recta per punctum illud fixum transeuntium summa figurae qua
dratura pendebit, ut in pamboli, cujus focus B verlex A. et ad sumti
in ea punctu C, langens Cd. Bd ex B
 productae occuriens in D. summa
omnium BD in EF transtabam
portioni B CBD CBGC
aequabitur ducta jam
posita AFHX et
FC ad FH F ila FBseu CM a 2x
ad MD_ Ergo MD, ac a- 24
Ergo MD,
Trax
Jam BD ra+ + MD. Ergo Bd, X + a C 2aD
laberiero potest summa omnim 2aX +
et
ABY
tangentem, patet esse ut
Prax
Srax
at srax
Trao 1XV.
18 est ipsa par abola: et Ergo habetur summ a
omnium a. quod mirum non est cum sit Hyperboliendes
tax
etram habetur,
ax 1 nam
fiet: X
2A
ndor
7 et
a B.
nar