# Leibniz Legible — https://leibnizlegible.com # Page: https://leibnizlegible.com/page/845634801:0280 # Permalink to this reading: https://leibnizlegible.com/page/845634801:0280?run=74 # Title: [Francisci Vietae Opera Mathematica] Francisci Vietæ Opera Mathematica (shelfmark Leibn. Marg. 101) # Folio 274, page id 845634801:0280 # Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=845634801&page=280 # Source image: https://digitale-sammlungen.gwlb.de/content/845634801/jpgs/default/00000280.jpg # Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 57 lines, status machine # Lines: 57 recognised, mean confidence 0.89 # 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. non eran(eaE per Veran(eaF per Z, proximius remorius ve ip(o V a R puncto. Ouoniau iditur inleriprae circulo OR, Z X sese secanr in R, Ideo ei quod Ac (ub ZIE, R X erIL aequa leid quod Ar (ub OK, R R. Id aurem est ineptum cum id quod Ar (uD QR, XR (CX quale ex hypoche ei quod sic sub R V, KX, id eAt lub P, G. F. s aurem K Z majorminoc aurem fuir constirurio proporrionalium K O. R V, H X, H R, id eAtE, F, C, II. In qua cumque ixirur sectione inscriprae e diamerri, an guli qui tiunc lunt xequales. Ouod ctat demonstrandum. Elenchus aovMozistas. liud quam V punctum, quoniam adlumotrantire per Z. hoc enim concesso d illud con cedinccesse est, ex contra, ex Theoremare Fuclideo xxxv. libri cerrii. Sed cum parodos, I vepeE V (IVCPeF Z nesetur, una ex alcera non poruit interri. Ouare capriosa est e impet. Eecta cacis rdaedivaror a narcoi. E8donsoBnqua. Datis duabus lincisrectis, invenire duas meciaS COnFIHUCPFOPOKEOla Sint datx dua rectae Z, X. OpOr- tet invenire inter dacasZ, X duas medias continue proportionales. Exponacur circulus in quo diame ter ita secet inscripeam, ur segmen ta inscripeae sine in continua pro- Portione inter legmenca diametri. Sit itaque diameter AB, inlcripea CD, Cele muruo sccanres in F, ita uE Teomenta sine in Continua prOPOE cionc, Cemtrum verOF. Ec eodem Fcenero incervallo dimidiae com- Policae ex Z, X describatur circulus quem diamerer A B lecerin C, II. _c absG HI abscindatur GI, ip (1 7 dara aequalis. Ieaque LII sic alce ra daca, e per l’agatur ipA C V Parallela, lecans circulum OHI in K, L. OuOnIaM IgITUE AF, F. C ED, E B sUNE In CONTINUR PEOPOE. tione exhypochesi, angulo aurem CF. A consticurus est aequalis R 1C. Frgo C L, LK, IL, TEI Cuntincon- cinua proporrione. Ad datasigitur ZyZ, Id est G I, LEI inveNEX TunE II, IL dux medix in continua proporrione. Quod crac Facien- dum. Sed illud est angulum anoulo daco rexuincos sumere aequalem. Mesolaba aurem organa (UInE, e acopemata acopematis placet cu- mulare. Organum (ane ABC D exleri ex dura materia, imO verO ex aere perenni construito, et eo eanquam alceromunimine iis qui in vereres Machemaricos remere insurgume, obll. PSE V DO-M E SOL A BVM. diamerer CR. Ajo circumterenta erelipri circuli O R transireper V, Z. Si enim ve L V. Travlicisitur per V, ee ideoangulus V K O idem est cum angulo MI K Q libera A’aeyco cis rd a duvaror circum terentiam circuli, cujus diamerer est OR, trantire Per a Ilar