# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/727094130:0126
# Permalink to this reading: https://leibnizlegible.com/page/727094130:0126?run=74
# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 114, page id 727094130:0126
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=126
# Source image: https://digitale-sammlungen.gwlb.de/content/727094130/jpgs/default/00000126.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 13 lines, status machine
# Lines: 13 recognised, mean confidence 0.81
# 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.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

1F4)
Sirque circaus ABC, Cujus centrum MI, _ radiuS NB, aequalis axi
eransverso ellipseos A C; _ moveacur planeta, aB, ad C eodeu
mocrmedio, quo a P ad O: iCa, uc MPB, MOC, tanelineare
ct: ducanturqs linea verimocus, tam in circulo, guam in ellipsi
SP, SO, SB, SC. Dico angulos PSO, BSC, BMC, ele arichieci,
ec proportionales, l Mneandem esse differentiam inter PSO, _
BSC, quae est incet BSC, _ BMC. Guoniam enim AG, ett X
Guas M C, BE NO+ OS =AC ==MC, Ee ablATA MO uetin-
ques erit OC=O53 _OCS=OSC; e AMC, OCS=- ASC;
e
 ASCm OCS=ASO: cres tou anguli AMC, ASC, 15B.
sunE