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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)
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43. Vel etiam; continnata D P, donec SCCCT A C (Continvatam) in C: PFO-
Portiones erune, uc prius, 545, 46.
50. Sed in hac Sectione; Curra non sccat Arem Cuum in P (ut in duabus
proxime memoratis in b,) Sed permanet ex eodem ejus lacere, donec axi iterum
OCCUTTAE (AI CONTINUETT) in B. FF (SI SIC CONLIHUECIX) pro D R = R - c, habe.
bicur) DR = R F c, ubi punctum R est ulera rectam AC. FC Similiter, Si pOst.
quam BC secuerit AC in c, secet iiem ipsius DC continuationem in P; PFO
DP = R - C, habebitur D P = R + C.
5I. In ucroque catu, (sire BC secer A C supra sive inFra punCtuM C,) CUIEVX
BsC continuarae (pro pari concinuacione Solidi,) Occurrene iterum Aribus Tuis
(continuatis) in B: taneo ulera c, quanto est B citra c. Sed ex eodem axis latere
permanene, absque ejusdem sectione interea, uc in duabus proxime memoratis de-
etionibus.
52. Et utrogue casu (sire B C Secer, live non secet, rectam DC,) Curra BSCB,
transtatae ad unum idemque planum, (si diridatur AC in parces aequales in pun-
Etis C,) comparebune uc in Sexta Projectione, Fie. 2F. UBi linea BC continuan-
cux ad B; de cum (quo vicetur contulio in Schemate) craneteruneur a proprio (uo
sicu in plano ABDC, ad rectam AC concinuatam: Rectaeque pa cildem (in
hoc licu) applicantur ut Ordinaca, in tali proportione ad RS, ut 2P ad aR.
53. Magnicudines in hac Projectione, sic deligno in Speciebus;
i O N 0 - C. U N F u 5.
AB = CD.
A.
=C R = c.
RS =V:
DR = R FC =V.
2R = AC = A.
BA. Ba.. BC. bp:: Ac.s
l. R+6 -
AR (= AC). 2P.. 15. 50.
1
FC a:: V: X - 0
R FC
R
X aV: P = c: =
-0
aV: X -c
2.
V: K = C
24. In Numeris (POlitO R = F, A = 2,) Semmtaxes Mnqe Cra
Exhemate delcriptarum, sunc ejusdem lonoicudinis cum C d,  DC, 534, 44; 
quod prima caruur (qua ell cireuli Circumterenria) hic omiltatur: pro qua, hoc
calu, toret recta linea, coincidens axi suo B A.
Bc.
BC.
BC.
2. 12803 T.4742F 2. 80278 2. 23607 2.09258
Et Sdinacue, li supponaneur Semi ases dividi in 4 partes aequales, adeoque Axeo
ibli in B: FrunE
d. 2
O. 325
O. 289
O. 2 T7
0.362
0605
0.650
0.750
d. 325
0.543
0.908
O. 974
0868
D. 72
T. 2T0
2. 290
1. X57
O. 207
0. 54Y
0.908
5
X. 513
X. 624
2. 44.
6
00
O. 165
O. 124
Vel