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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 568, page id 851708439:0592
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a stad. 0 ad 36.
E SECTIONL
D. IV.
dLC LCc
R9 F R99
c acq
Scad. 324 del 360.
268... 324
208.... 144.
5T. +
A erad. ra.. . . 280. + 5MI -
R9. RgC
c-
NC9
l9 R94
c 1,c9.
R9 R99
NC
ACq
R9 = R9q
A Bract. 180... 216.
E pro communi cermino, seu puncto connerionis, horum Incervallorum; per.
inde cst ad vcrumris urrinque positorum reFCraTIE. PULa, Pro grad. 36, sive ad
E sire ad A: F.F pro Or. 72, lire ad Alre ad HI. EL PEO CxICrIS ParitEY.
209. Tlinc sequitur Oumeuplex AEquario, Radices Ouinque continens. SRGGF.
SRGL. C. F F C9 = 5Rg9A -- sR9AC F AC9 = (RgqF =) -- sR99V
FSRgHC- NC9 = - sRg9L FSRgL C- LC9= fSR94M - SRGNC
+ MC9.
EE Jam, quoniam sR g9A = sR qA C + A Cq = SRgAF LS RgEC. L KCq; d,
transponendo, sAgqA - sRggF ==sRgAC = SRgCC - AC9 Y F Cg. FrgO(omni-
buS per A = C diritis) 5R99 - AC = F. C
A- F.
TTI. Sed (per 13, 24, 25, Cap. 2,
AC -FC
tC - F C
A = F
NCg= L Cg.
=A9. + AE + Eg - 3 RQ. FI8O
ACG LCA = 10R94.
A F
Deq - FCat Hioc est
ACg FCA = A99 + ACF +
A9E9F AEC + R. 44. ErG0, A99. + A CF. + AgEq F AEC f F99 = 10R99.
223. Seclangulus cruribus A, F, concencus; est gractuum r4 4. Vipoto angulus
in Peripheria in Ciltens arcui gractuum 288, seu Z tocius. F. r8O,
224. Disserenia Duadricuborum (seu Supersolidorum) crurum continentium
angulum eraduum 244: Divisa per differentiam Crurum: Squatur 10 Biquadra-
iis Radii circuli circum seripti. (PexS XTT. ) HOCCA, (per S TI2.)
775. Biquadrata Crurum concinencium angulum graduum 244 una cum Fribus
mediis Proportionalibus inter ea Biquadrata: S quantur 20 Biquadratis Radi
Circuli circumseripti.
226. FIt aurem hujus Frianguli Batis, Lacus inseripei Pentasoni regularis, sive
subrenta Bcadtuum 72. Adeoque (per 53 F) CAtRV =. Dujusque quadracum
  1E R g. Fr viquadtarum eMt 30 = 10 1E 299 - 15 - 5 Y5 X 44. 0u0d
elt, act 20RqG, ut 2 3 ad 10; Teu, u1 3 - Y5 ad 4. F1B0,
227. Differentia Duadricuborum crurum continencium angulum eraduum 1447
Divisa per Differentiam eorundem Crurum: Deu, Biquadrata crurum continenti-
um illum meulum, una cum Tribus Mediis proporcionalibus inter illa Biquadrata:
Sunc, ad Diquadratum Basis illum anculum subiendencis, ut 4 ad 3- 15.
12B. Trem; Ouia (per 5109, )5R gGHI - s RgMC L MC9 = (R g9F =)
SRG9A -= 5R9AC F AC9, (eltque M major quam A: ) FFBO, UE in 8 LTO,
TTT.
2... 288.
16... 252