# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/727094130:0095
# Permalink to this reading: https://leibnizlegible.com/page/727094130:0095?run=74
# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 83, page id 727094130:0095
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=95
# Source image: https://digitale-sammlungen.gwlb.de/content/727094130/jpgs/default/00000095.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 42 lines, status machine
# Lines: 42 recognised, mean confidence 0.85
# 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.

gnhadici, cAu A SuMM, quo A B, Scu secunda imaGO, aPP2
inte
dem
lo? qui, equalis elt angulo, quo rercia
lua incidenciae: quo dato, dancur cadem,
percinencia ad imsinem secundam, _ ad cerriam; qux da-
nencea demaginem primam, e secuodam: Co-
ciocivio, seperlerur ansulus, quo quarra imaeO, ap pa-
ret ex verrico sux incidenm, quo invenimus adpulum cerrix, ex
vercice iplius incidentix; de candem ansulus, quo visibile videcur
ex vervice ua ctat
nerl
rec ex vertice si
IIMaBO aPDATEI
banrur, incet D
roP. 54. Problema.
Emaeinem visibilis, in plano depictam, in quacumque ratione data, il
Instrare.
Te visibile A V B; cujus iaSO In PlanO depicta, lenre vel
n sxeculo, cujus diameres DF; sic illuliratida in rarione R ad 5.
Sic UE Rad  C
S, ita quadra-
cum ctioc.
dxe, Cemissis
anguliD V
E ad quadra
cum chorda,
TemiIS an-
euli F VC.
LC produca-
cur lenS, vel
(peculum,
cujus dia
MCTETDE,
ex Omni
Parre in C,,
_ F; ITA UE F V O, hac angulus diameeri, lentis, vel speculi pro-
ductae, ex puncto V. Factumq; erie quod proponitur. Lens enim
vel speculum productum, ampliabic imaginis illustrationem, in ra-
eione R ad S: WE DACL PeT COrOIlaIUM Z PrOp. 33 tujuS.
et 2
Corollariuns.