[Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica, fol. 351
Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.86.
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The machine reads it as
- PFOp. XI. VI
- HLC L S
- e RO P. XL V1.
- De recta Paraboloeides Cubicale contingente.
- F Paraboloeides Cubicale A aq in puncto quoris an contineat re-
- eta _ F, diametro P A OCCuTTenS in F, Stque cidem diametro
- Ordinatim axplicata a P: erit recta A F (diamerri Continatio) du-
- pla diaHCCI InTExCePIA P A: hOC ett, diameter continuata P F, tri-
- bla diamerri P A.
- pram, sumpeo ubivis (in eadtem diametro) vupeto D, cui ordinatim abplice.
- tur DO, tangenci a F Occurrens in P: Punctum Y (prOpter tangenTEM) vel CxIE
- idem cum puncto a (E nempe P, D, coincidanE; ) rel (si secuS) exit L exta
- curram: e (prOPterCa) DF = DO (nempe aequales, si D, P, coincidant; rel
- A secuS, D T lonsior erit.)
- Ponamus autem (ob. commodiorem calculum) P a = p, P A = d, PF = f,
- PD = a. Eric ergo (per det. praeccd.) PA. DA:: PaC. DOC. hoc est d. d = a
- : P
- P =DOC. liem (propiex similia criangula) PF. Pa:: DF. DF.
- hoc cA f. P.: 5 = a. p = D T. Ejulque cubus
- DTC) = (DOC =
- a
- 23s a +3sa La
- P. Fr (urinque multiplicando per fod, et divi
- dendo per p3) erit f3 d = 3 f d a 3fd a2 = da f. d =f a. Tum C alite
- rendo utrinque f d, ec dividendo per L a d erit 3f L = 35 da + d a =f. De
- nique, porendo puncta PD coincidere, (ut craneleat quancilas an adeoque et ips-
- uo mulciplicia = 3F dan = d a 3) eric 3f d = f, hoc elt. 3a = f. Quod erot
- demonstrandum.
- F R OP. XLVII.
- De Parabolocidis Cubicalis Diametris.
- Nquirere, An in Paraboloeide Cubicali Diametri sine invicem pa
- rallela: Er cujulris diametri Ordinatim applicata, sint rectae in
- ipsus Vectiee conringenti parallotae.
- Inquilucio sacile instimi pocerte ad imicacionem illius quae de Parabola achibe.
- tur ad prop. 24. nili quod PF, quae iltic dicitur 2 a, hic dicenda est 3 d. Fam
- nempe Anatycice sic inllicuamus. Supponamus scilicet rem ita este: Adeoque re-
- etam l’a, quae paraboloeides Aa in puncto a continsat, diameno P’A producta
- OcCuTrerE in F; eique parallelam OO Paraboloeidi inscriptam, quae (producta)
- cidem diaerro supra verticem occurrat in C) (adeoque intra verricem diaetro
- Occurrat, cum tam. duarum D Ei, quam duarum DO, de quibus mox dicetur, al.
- Eera eriu quantitas negatira, quod tamen calculum non curbabit; ) iplanique 00
- rec
- ipsi a ordinacim axplicata;) denique diametro AP ordinaciim applicari OD,
- ODa P iplique Paralselam r P eidem diametro occurrere in P: quare e (prOPIeI
- Paralletas) Pp = a 2 = F G; _ ProPterCa P F = P C: item (propter parallelas)
- rectam DD. bilectam in p, SeutO bisecatur in 2. Ouarendum autem est, num-
- cubi reperiri poltine puncta D, D; quae, quidem licubi inveniantur, conslabir pro.
- Dolutum.
- Sublticuris igitur idoneis lymboto = P. P A = d. (ideoguC, D Pa-
- ced: PF = p G = 3 a.) PP = a n = F C = 8. (erBO p A = P A F Pp = 4 + 8.
- PD = g. (adeoque D A = p A L pD = d + 5 Lg. _DC = p C + pD = 3d =9.
- Fxit
Cite
[Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica, fol. 351. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/851387705:0371?run=74