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# Title: Leibniz-Handschriften zur Mathematik LH 35, 4, 19
# Folio 29v, page id 00068016:0058
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Sed majoris adhuc momenti sequens
observatio est, serviet enim tum ut ut Geometrae.
anihil his facilius esse moniti
abstineant imposterum Goata proponandis
tractandis. hujus modi problematibus
nisi vel opus illis habeant vel
singulare quiddam atque elegantess earum constractiones in illis
equiddam
illis deprehendants Niminum tum
ut moniti nihi tum ut appareat
millena problemata, quae separatim
proponi possent, arte analytica
ad unum calculum revocari.
itaque observo problemata duodecim
a Geometra post tabulam latente
proposita revocari posse ad duo generalim
quorum unum indeterminate consideratum
prius
est planum, posterius solidum
ondeterminate consideratum est solidum
Sub priori continentur problemata
primum, secundum tertium quartum,
sub posteriori reliqua septem.
prius problema generaliter ita
concipi potest: Data differentia
(posses et summam addere) inter intervallorum
inter punctum quo perpendicularis basi occurrit
et t duo baseos extrema,  dato
item angulo ad basin alterutro,
ac denique data summis vel differenti
ratione duarum quarundam rectarum  O.
ex duobus lateribus circa verticem vel
eoram multipt, utcunque multiplicibus
assumtisque rectis datis utcunque addendo
vel subtrahendo compositarum; invenire
Triangulum. Calculus itaque generalis erit hujus modi
antam
erit hujusmodi. Sit Dato angulo
ad basin A. dabitur ratio intertres
rectas AB. AD. Bd. sit itaque
AB vocabimquet rectas, AB, Z. BC, y intervalla autem seu segmetita majus l
AD, v. minus DC, X.  Data differentia
intervallorum vel segmentarum sit a
fiet
(1
ecx aeq- a Porro dato
angulo ad basin A, (perinde enim est
in calculo generali, quam eligamus detur)
dabitur ratio rectarum AB, Ad. quaesit
eadem cum ratione d ad c. rectarum
ZF Z
datarum, ac fiet; reqe
(27
eq vaequ et
rrnndna et constructio em facile habetur ope circuli et rectae
Enpo
u
est
pt
+pr im 
rraa st rr toiZ
tz-rraa
drr dum
Fdata differentia intervattorum
vel segurentorum sit a
Flatera cirt verticem