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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis (shelfmarks Leibn. Marg. 100:1/2, Stück 2; Leibn. Marg. 100:1/2)
# Folio 574, page id 851708439:0598
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F.
SFCTTONTBUS.
8. Adeoque D9 =B9 = CF - C A. Per 54, 7
Cap. V
9. Vel; Sunco oppolica Lacera A, C; et A, D;  Diasonales B, L. Til et,
BF = AD = AG. EF A) BF - AD (C
20. Vel; Sumco oppotica L atera B, C; de A, C,  Dinconales C, D. Tum
TT. Adcoque BF = AD = CD- BC. Der 69, 10.
22. Maniteltum cst; hine interri posse, Aquationes d Analosias magno n-
mero: Magnamque Pheorematum variccarem, pro vullecate Catuum; pariter ac
in Capicibus praecedent bus factum est. Sed eis parciclachu recentendis abstinco.
23. Scd a Tinslilis harum Constructionum (valoribus B, C, D, L vels
CognItIS per ance cradita,) habebimus (Aiquationibus rite ordinaris:)
3
12RCCA = 191GGHCY8R9AC9 = AC99
Y ACCCCG.
= ACCCC.
elt, CD = BC = AC. FL A
Vet, GRCqV: +R4
Acqr: 4Rq = A9:
A9: = +2RCCA = FORg9AC F 8R9AC9 = ACG9. EE (Sumptis OM2-
draris) +VGRCCCC =GGRCCgqA9 = 1A+LCCCCA9= 456RCC99A99
tS53RCCqACC = 328RCCACC9 f 102 R99ACC99 = 26R9ACCCC
14. Hloc est (omnibus per 4 R g = A9 cHHS,) RCC99C9 = 36RCC9GA9
105 Rcc9A94 F 21Z RCCACC = 54 R49ACC9 F 12R9ACC99
15. Tujus Aquationis sunc omnino Sex Radices planae, toridem planis A9 re.
spondenres; quarum Radices quadrarieae sunc ip(a A. Ouxe sune cotidem Recta
ab uno aliquo Circumterentiae Puncto, ad Sex Angulos inseripri regularis FlCNa
soni alclae. Adeoque, una aliqua carum cognita, habeneur Reliqua. LF LimI-
licer in aliis ejulmodi Aquationibus
16. LX quibus, DUx Mimm_ A, F, (quae Tubrendune, ex uno latere, Arcui
Sextance Mmori; _, ex altero lacere, Areui quinque sextancibus Majori:) Dua-
que Marimae, X, Z, (quae Subcendune ArcubuIS qui sunc Majores quam Duo Sex-
tances, sed MinOreS qua OUALIOT SEKIanIES,) tunE ractICCS ABITIAHVA; (PrOpter
Luvientam Dupli, minorem tubcenta Ouacrupli; adcoque Dg = Bq quancicaiem
Armatiram:). Sed incermedix Duae L, K, ( qua subcendune, ex uno latere, AI-
cubus qui Majores sunt Uno Sextante led Minores duobus; ex altero lacere, ArCU.
bilo