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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 160, page id 1677894601:0340
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=340
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 33 lines, status machine
# Lines: 33 recognised, mean confidence 0.95
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C
et per eadem puncta sic delcribi porsunt. Dentur
Carrae describendae puncta quaelibet septem A, B, C
D, Eu F, C quorum A est punctum dupsex. Jun-
eantur punctum A X alia duo quaeris c punctis puta
B _ C.; ee trianguli ABC rOtetur tum angulus
C. AB circa verticem Cuum A, tum angulorum reli-
quorum alteruter ABC circa verticem luum B. Fit
UDI CrUTUIM AC, BC. concurtus C. succelsire appli-
catur ad puncta quatuor reliqua D, F F, G incidat
concurtus crurum reliquorum AB e B A in puncta
QuatLOr P, Q, R, S. Per puncta illa quatuor e
quintum A describatur sectio Conica, X anculi prae-
tati C. AB, C. BA ita OteNEUL UE CrUTUM AB, B A
concursus percurrat sectionem illam Conicam, E
concurtus reliquorum crurum AC, BC. describet
Curram propolitam per Pheorema lecundum.
Si vice puncti C datur positione recta BC. quae
Curvam delcribendam tansit in B, lineae AD, AP
coincident, et vice anguli D A P hrabebitur linea recta
circa polum A rotanda.
Si punctum duplex A infinite distat debebit Recta
ad plasam puncti illius perpetuo dirisi e motu pa-
callelo terri interea dum angulus ABC circa polum
B POtatur.
Delcribi etiam postunt hae currae paulo aliter per
Pheorema tertium, sed descriptionem simpliciorem
poluisse sufticit.
Eadem methodo Curras tertii, quarti de superio
rum generum describere licet, non omnes quidem
Sed quotquot ratione aliqua commoda per inotum
localem deseribi posune. Nam curram aliquam
secundi