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# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 52, page id 727094130:0064
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=64
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 40 lines, status machine
# Lines: 40 recognised, mean confidence 0.83
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
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# After the first blank line: the recognised lines in reading order, one per line.

.0. Lemao
Si ex uno ellipseosfoco, ducatur rectula, normalis axi; es ab aliquo
vero ellipseos circumferent pe pendicularis; a foco etiam ellipseos
praedicto, ducatur altu dcurrens perpendiculari, in circumferentia:
erit anculus comprusnsus a duabus primis rectis, ferme agnalis
IE ellipsiS A R B, CA CHSIS LOCOM, AUCAtE RECtA M F, axI A
Eltatas.
e 2 puncto T, ad ellipseos verricem C,
ucacur recta LC; _ ab ed puncto T, ad elsipleos circum-
ferenciam, ducatur con t RO, perpendicularis in pun-
AtoCOnLACtS P R; e a  ad punctum R, ducatur recta M
R. Dicoangulos R  Cs I LC, fere aequales eNe. ProduCATUE
axis A C, uE ConcuMaL CuH Latisente ORO, in O; SIgITE
ScahelsoL, describarur circulus, cransibie per puncta R, M;
quoniam anguli TMO.
IRO, Tuncrecti z. an-
BulIIgIEUT RTO, RMO
in eadem circuli porii
one lune aquoles; an-
DuLUS AUFCMI RTC, nOn
mulcum differe ab an-
guloR TO, quoniam
liR. punctum, Cedac
Erope C. (quod sem-
DET eVeHIE PrOPIeI bre
vicarem lineae M. F,) li
nea contactus RO
Concurrer cum axe, tere
in C: EC PrOPATVICA
lerectae OC. diminu-
icur angulus C TO, dit-
icia incer angulos R M, a RTC: quire li recta M T Fue
sic brevis; erune anguli R L, LM C terme xquales; quod de-
PFOD
rectulae puncto, ducantur dua recta, una ad ellipseos verticem, aliera
anculo comprehenso, a tertia, s aue ellipseos.
TI
1d
FeF
monlltandum etaCo