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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 384, page id 851708439:0408
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=d 2 ~ =
L G L B K A.
Z
X 3
LidD. Lli
6 a :  40au t 1r2 a; t dee Hloc et
= Y da in: F + ~ - L 3 ~ N, 5 X A N
640d TT2 a  F ec.
(Nocandum aucem, quod supra monicum est, quod 3, 3, 3, ec. ponuntur hic
pro Exponencibus dimentionum ipsorum X, an ecc. Et similiter, in sequenri.
bus, uibi calia OcCUTEUNE.)
Exemplum TI. Areu dato, invenire Sinum, rectum aut versum. Sic Racdiusr,
ArcuS Z. Sinus rectus est,
6rr 1OF 5640r 3628875 = _c. Hoc elt
22
C ecc.
 lc.
Exemplum TI. Dato Areu, alium in data ratione invenire. Sic Diameter d
Dati arcus chorda _; areus quasituS Sic ad dacum, ut n ad X. Chorda quaesiti exie
=n x
O= nn
4.X5ad
rB
25.  nn
627 ad  C
40- nn
rr Buorr
El otus vettuo,
2433 720r 4032 r F _c. Hoc clt,
21
aure suari suori uber
lin 3 e a
3X = n n
TOXIT4   8c.
Nocandum hic, si n sic numerus Impar, Series erit finita; et quod inde pro.
ditus idem quod in Algebra communi pro mulciplicando ansulo per numerum n.
Exemplum NV. Si in AB utrovis Arium Fllipsis
ADB, (cujus Cenrum C, e avis alter DIL
datum sit punctum F, circa quod recta F. C (FL
lipsi occurrens in G) feratur motu anculari: Da-
ta area Sectoris Flliptici BP G; invenire Cit per-
pendrcularem axi AB. Sic BC =9. DC =1
F.B =C. EC duplum APCa BEC, = 2. Tum
et GF,
= 26093 + 50499+ - 225911
5040 r5 L
Ouxe est Solutio Repterram Problemaris Astronomici.
Enemplum V. In cacem Filipsc; politis CD = r. CD) C. B4 (8. et CF = 1.
Arous Klliptieus DC, est
1t
6pp  120 pt F