# Leibniz Legible — https://leibnizlegible.com
# Piece: https://leibnizlegible.com/api/records/888/text
# Catalogue record: 888 — [Aufz. zur inversen Tangentenmethode]
# Incipit: Datur proprietas Tangentium quaeritur descriptio per trochoeidem
# Date: 1676
# Record in the Leibniz-Katalog: https://leibniz-katalog.bbaw.de/de/extended-search?id=888&katnr=58469
# Work: https://leibnizlegible.com/work/00067956
# Title: Leibniz-Handschriften zur Mathematik LH 35, 6, 1
# Folios: Bl. 15–16 (from the shelfmark LH 35, 6, 1 Bl. 15-16): 4 pages, canvases 29–32, page ids 00067956:0029 to 00067956:0032
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00067956&page=29
# Lines: 39 recognised on 3 of 4 pages, mean confidence 0.91
# Catalogue: Leibniz-Katalog / Arbeitskatalog der Leibniz-Edition (https://leibniz-katalog.bbaw.de/), ed. Arbeitsstelle Potsdam I der Berlin-Brandenburgischen Akademie der Wissenschaften, CC BY 4.0.
# 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, page by page: a "## Folio <label> — <page id>" line ("## Canvas <n>" where no folio label is recorded), "# " lines naming its source image and model, then its recognised lines in reading order, one per line.

## Folio 15r — 00067956:0029
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 16v); this page is its right half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00067956/jpgs/default/00000029.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 39, 2026-08-27T09:55:26Z — 1 line, status machine
ta

## Folio 15v — 00067956:0030
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 16r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00067956/jpgs/default/00000030.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 39, 2026-08-27T09:55:26Z — 36 lines, status machine
cum linca super linea incedit, eam 
tangendo, jea superne ex veletr
ita ut nne in ea non trahatur
sed volvatur, et ponatur punctum
ei firmiter afigum, id utique noch
prochaddum descrbit, et quasi
prodhocantem, si punctum E
interiam in pluco moveatur
ubi notandum esse, quidem
GF differentiam inter EB et 
A(B) sed non inter EB et (Et (B
hinc etsi verum it ut in iis que
ad unum focum cocurrunt perpendiculares
si centro E radio quounque assumatur describatu
Circulus et ex puncto quo rectam secat
EB fecat, agatur perpendicularis in non
matam ad curvani eam EE)
eam sore
proportionalem ipsi EF. Sod taum hoc non prodest
quia non datur hic aliquod y cuus dus sit Et
positione datis circulis curvae normolibus invenine
curvam est hahere fitum cum ponde re anneyo
se fitum si duobus filis nunxum sit pondus
quo aano incumbo
 halumque uno
sit e, tremitate
altem ven puncta filu
altera fimuu. Concepi possunt
duae tractiones, una retentionis altera
potractio nis et tire dio erit in angul.
bisceante videndum
An ractio sic fingi pt u
nec filum
Et datum magnitudine, rec eyus
virectu, sed aliud quiddam motu
determinans

## Folio 16r — 00067956:0031
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 15v); this page is its right half.
# No recognised text on this page (recognized).

## Folio 16v — 00067956:0032
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 15r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00067956/jpgs/default/00000032.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 39, 2026-08-27T09:55:26Z — 2 lines, status machine
eeeeeeeeeeeee
RIED WILHELM LEIBNIZ BIBLIOTH