# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/824573315:0131
# Permalink to this reading: https://leibnizlegible.com/page/824573315:0131?run=74
# Title: Qua Continentur De Angulo Contactus & Semicirculi, Disquisitio Geometrica. De Sectionibus Conicis Tractatus. Arithmetica Infinitorum: sive de Curvilineorum quadraturâ, &c. Eclipseos Solaris Observatio (shelfmark Leibn. Marg. 84:2)
# Folio 47, page id 824573315:0131
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=824573315&page=131
# Source image: https://digitale-sammlungen.gwlb.de/content/824573315/jpgs/default/00000131.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 28 lines, status machine
# Lines: 28 recognised, mean confidence 0.92
# 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.

PROF. 21.
DeSectionibus Conicis.
plicatarum quadrata Cunc intercepcis. diametris pro-
porcionalia.
Rectam vero (imaginariam) quae cum intercepeis-
diamerris (tunquam communis aliitudo) continebit
rectinonla (ipsis quidem diameeris-interceplis pro-
porcionalia) Qadtraris illis Ordinarim- applicacarum
aequalia appcHIO T, arn- Rect um: DUTALA
Ordinatim- applicatas vero appello, (FO, FO,) Ce-
milles parallelarum rectarum, (00.00) Parabola u-
ering; terminatarum (quas ordinatim-inscriptas, vel
Ordinatim- Subtensas appello) una linea recta (puta
ADC, quam appello Diametrum) Bilectarumm.
O.....
Punctum autem illud bisectionis, (D vel P, )eunctui
applicationis appello; in quo quippe Diametro (uxe 2P
plicatur ea quam Ordinacim- applicatam diximus.
Diametri vero legmencum, puncto applicationis ec
curra Parabolica comprehentum, (AD, AP,) Diame-
trum- interceptam appCllO.
Punctumqi Diametri in curra illa existens (puta
adappello verticem, (tam Diametri, quam ip(IS Pa-
rabolae, (ccundum illam Diametrum consideratae.)
Ordinatim- positas appello non modo eas, quas (u-
Pra Ordinatim-inscriptas, at9; Ordinatim- applicatas
dxi, (qux vel vtringi vel ab alcera Calcem parte Pa
rabola