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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 686, page id 851708439:0710
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666
a e   C. l3.
24. In Numeris SC. POtico R = F. A = 2.
25.
0. 516. +
c. 033 -
T. 548 +
2. 064 -
20
0. 577+
255
L. st
25. Duarto. Si secetur plano COd, F15. 3. quod sit Perpendiculare Rectan.
gulo CDB A, cranseatque per centrum C, de punctum d quodris in latere D B:
Currae proprietas haec exir. Secetur planum hoc in so, d quoris criangulorum RSa,
ips CO A parallelorum. Tum est V7 A C Seu a R, ad aP; Sic RS, ad p0. Sed
Ponsicudo ap, sic prius inrenienda: V CD, ad CR; Peu C d, ad Ce; Sic dD,
ade R: Ouae a coca Alcicudine subducta, (auc illi adelica, si supponatur e sumenda
in concinvatione iptius dC ultra C,) exhibet consicudinem iptius 2P.
26. Magnicudines in hac Sectione, sic deligno i Speciebus,
CD = R.
CR = c.
RS = V: P - c2.
AC = 2R = A.
D-
CD. CR:: Cd. CP:: d D. eR.
R. 6
eR =
1. b. f b.
aP = a R FRP = A =
aR(= A C). aP:: RS. P5.
A. A+ =B:: Y: R - e.
al
 c
R ZCB
V. 2 = 6.
19.
0
56 -
2. 268-
3. 024 -
F. 732 +
Infin.
L
En.
Twitt.
Ensc.
27. Din secetur plano LOh, f0. qu Quod per COcrantiens, secet punctum B
haec erit. Sccetur planum, ue prius, inpo, 2 quoris criangulorum RS a ipSiC. 
parallelorum. Zum ell, O1b a ad ba; teun bC adbe; seu ut AC (seu 2R)
ad aP: Sic Rd, adt 16.
(laceris AB) priusquam percineat ad d lateris DB produeti: Curva proprictas
28. In Speciebus, C,
D = A.
RS = V: R-
A = 1 = C.
Pa = = V: N - c
:. Y: N - c2  Y. X -c
EV: N-
bA. b4:. C( aR). ap: . 25. 50.
29. Vel Eltati; concinuata l. b, AB1CE decet D B (concinuacam) un d: BlOPOF.
tio exic ut prius, 525, 26.
30. Sed