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# Title: Leibniz-Handschriften zur Mathematik LH 35, 13, 3 (shelfmark LH 13, 3)
# Folio 244r, page id 00068200:0489
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April. 1679
Coni caleri superficies
Videm novum problematis genus circo elementa
arcuu
potest superficies lono scaleno aequalis
quaeri etiam ex supposuto circulo seu
circulus ei aequalis hoc modo:
aequ. AM.
radius a. finus c complemensi L
equ. LM
est
Ordinat si nu sinu sperficier lona et Baequalis
distanti rere puncti quo perpendiculasis ex vertice com
plono haseos occunit  ile a vertice circuli et TM
secans respondens angulo est cujus est sinus complementi u
et DM ipse distantia himoi a centro puncti
quod incalano vertile conq senteni respondet
est
a.
Z bas eet respondetie
eiis TDaqu
a
e
L
4
et Ed en + 
eu E1
1B
et 
seu
ED
et
+a
si
jy e a
e
TM
a
a
a = eL cujus quadrato addendum quadrotu
destentiae verlicisia basi a quu est s’inde ft radix dncatur
in adque erementur nc sumima dabit superficiem
Vae-
sat elementu
coni sealem.
arcus aequ. dc. fiet:a dZp1ay2
L
e
A
LC an
de ecd -
 ac
 et 49t 1- Z a
7  a- Z1 dz2
de
a
a
de
a
addatur s. sit.
+a+C - de2
+a+ e scribatur h, fit h2- 43
11
ac
de
et
a
~
ED + a = e Vdc-  ejus quadr. a + e- c e
c
hicc
equ. o pio
or duatur ejus radix in
de LBC
de siet. Iti dc= du er D quaecitur srmuca omnium V.
et +
Manisestam est autem si esset, hp. sore ac = z differentiam
ordinatae circuli seu sinus cujus quadruta quaeenda est est. vam du
est differentius situs complementi, et  de de differentia areu mune
vero patet idem esse ac si scribus A Vde d V.
id est loco circuli qvaeratur alic
hth
linea in qua tua distantia cordinataru
um seu ipsae dq jam de du est aequ. dus posita
ergum sict: vi
seu de a
seu vH h dus + h q
per dy. hunc vero
eatius et sit deaq qui
ina rectis
epprimi autem potest ius
9 esse
elementg curvae
ellipseos, nam si tam inerementa ordinatarum