# Leibniz Legible — https://leibnizlegible.com # Page: https://leibnizlegible.com/page/845634801:0117 # Permalink to this reading: https://leibnizlegible.com/page/845634801:0117?run=74 # Title: [Francisci Vietae Opera Mathematica] Francisci Vietæ Opera Mathematica (shelfmark Leibn. Marg. 101) # Folio 101, page id 845634801:0117 # Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=845634801&page=117 # Source image: https://digitale-sammlungen.gwlb.de/content/845634801/jpgs/default/00000117.jpg # Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 62 lines, status machine # Lines: 62 recognised, mean confidence 0.81 # 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 uad. 210. dum C etit 1. Ae2. Sico raio EHM C0 18 duI la BO1 1aded 12B0 quo ed A, QV A F YO N V M. 10L quad. =F. B cabo -r. Bin Z planum 2 in A x quabitur Z. plano plano f B quad. in Z. planuMI. UE CAt enunciacum. Si +O = 8N. aquetur 20. +89. + 832 N. aequabitur 1680. Y H E OR E M A II. I A quad. =BIn A XQUCTUE Z planO: A quad. quad. = Bcabo = B in Z planum = in A, aquabitur Z. plano. plano = t Bguad. in Z planum. Nec distimilis est ab ca quae in ancecedence Theoremate exposira est demon- Aracio. Si + O - 8N. aequetur 20. +C C - 832 N. aequabitur 1680. T H EOR FM A TII. SF B in A = A quad. XGuETuF Z planO: Bcabus = Bin Zplanum L In A - A quad. quad, aequabicur B quad. in Z planum - Z plano- plano. Nec dissimilis est ab ca qua in primo hujus capicis Theoremare expolica cA de- monstratio. Si 12 N. = 1 9. aquetur 20. 1248N. = 1O O. aequabitur 2480. Dequadrato quadraris affectis sub latere; ex quadrato. T N EOR EM A IV. SF A quad. - +. B in A aquetuE S plano =+. D plano: A quad. quad. =Oplano 2 - B quact. In A quact. - + B in S planU 2 in A, aquabiEIF S plano- Plano = D plano- Plano. Duoniam enim A quad. F B in A, aquatur Splano = D plano, igirur per ancithe. SIn A quad = D plano, aequabitur SplanO -B in A. VETAGUC PAES IEA ETaN(POTIEX X- quacionis, ducarur quadratiec. Ergo A quad. quad, = D plano in A quad. 2 + D plano- plano, aequabicur S plano- plano = B in A in S planum 2 + B quad in A quad. EC om- nibusrice ordinaris, A quad. quad. = D piano 2 - B quad. in A quad. + B in S planum 2 in A, aequabicur Splano. plano, - D plano. plano. uc est enunciacum. Si 1Q F 8N. aequetur 2O. composito ex 1585. 1Q= 74 8. + 240 N. aequabitur 200. P H BOR E M A V. EF A quad. = B in A aquCtuE S planO + D planO: A quad. quad. Dpiano = B guac. in A quad. = B iI S plANUM ZIN A, XquabItT S planO- plano =D plano. plano. Nec distimilis est ab ea qua in ancecedente Theoremate exposica eAt demon- Rracio. Si 1 9 = 8 N. aquatur 20. composito ex 15 835. 18 2 = 74 P = 240 N aquabitur 200. T H E OR EM A VI. SFBIn A = A quad. Xquetur S planO -+ D plaHO: B guad. -- 5 plano= in A qu2d. Bim D planum 2 in A = A quad. quad, aquabicur S plano. p laHO - D plano plano. Nec distimilis est ab ea quae in quarro hujus capiris Theoremace expolica est demon- Aracio. Si 12 N. = 1 9. aguetur 20. composito ex 15 8 5. 124 D- 12ON = 1 Q e. aequabitur 200.