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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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LL l. Cc L. B, a 11.
_ X = y X
xX
8b =0
1X
i -=c
iX N a
CaL.
666a L 180 1y + 8p = 8b +8a.
VVX X SbY X
Sb∞ X E d Y X
8d X_
X X X X Opa 69b 61 - .
6b +Bd = 8b - 8a
Adeoque yy + 3p + 3 = 82B. Et 3y 82P 2 = 8b.
ry +.8p - 3 = 82 d.
2Yy 82P = =8d.
Taque (cognico valore y) habentur B, d cum suis sienis. Iplaque aequationes
quadratica;
a v - pX + 9y 8. P 5 = v v - y ~ 8b = 0.
a x + r ~ + 2yY 83P  =  v + p ~ 8a = 0.
OBi Zyy semper habet F: de 3p rerinet sienum quod habuerat p: sed g in priori
(in qua habetur =y x e b) rerinet quod habuerar lignum; in polteriori (in qua
habetur F y x et du) mucat signum.
Sic autem invenieur y.
Ouonimr + . 13 3i p 82 Vry 8py 84 = 8a
+3yγ 8: p 32 WWY BPY 82 -8d.
Ereo, horum rectangulum
p S2p + pPYY = 92- 508 d = 8r.
Hoc ett Y 628) f8873 =44- 64).
HOc est y 82p V = pPy y = 99 =0.
8i4r y y
Ob1 Y sadet F; 2p retitet Suum quod Lab P. P habet +: 94 habet =;
et ar signum concrarium ei quod hrabuit r; in biguadrarica
d
Hujusque aequationis cubica solurione habetur vatot, ejusque ope, aequationes
binae quadrariea, quae uni biquadrariea aequipollent. Ouxe cum Carcesu 
conveniunt.
A P. LVI.
De Reca  MMC Bartholini, aliisque.
quationibus compoticis. Ouas (inper alia le Ia) CdICIE firan-
ciseus Sehoorenius (sive Van Schooten) cu abiue monulatione, aut indicata
Raeter eam Cartesii Regulam, modo memoratam; ejulmodi plures alias era-
didie Johannes FTuddenius (Tive Van FJuade) Belsa, pro diltolvendis Ai
mectiodo qua ad eas perremeric.
Dua
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