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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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Cap. AY IIL. A L G E B R A.
est alcerius tracuionis terminos; puta Bc A Ci per l, acque D ee C K. per A; ut in
exemplo illo superius expolito factum elt.
Duod autem nora tandem reductione nonnunquam opus fuerit (post additio-
nem auc subductionem peractam) exemplo hoc ridebitur; ubi i5 F 20 = 2, Z,
De Mussiplicatione e Divisione Fractionum, has eradit Oucheredus Regulas.
Plulciplicatio comparat heterologos terminos (hoc es reducir ad minimos) e
Mulciplicat homolosos. Dirilio comparar homolosos terminos, ee mulciplicat
hecerolosos. Fc li incesri parcibus sinc immixti, relolrendi sunt incegri in partes.
Per terminos homologos, inrellisit, duarum tractionum expoticarum, duos nu-
meratores, aut duos denominatores: per heterolosos, numeratorem unius et de-
nominatorem alterius. Praesumit aurem, expotiras tractiones, leparatim Cumpras,
jam reductas (per ance tradita) ad minimos terminos; adeoque nihil hic praeci
Dic, de ejuldem tractionis terminis sicreducendis.
Fxempla Mulciplicationis haec exhibet.
2F
20 5
in = Hc -. = in = Fic -. = in 3 = H1
27 22 d
7 I
8
es
AB CC AC
Sic in - fit -: sexcriuis in hecerotosis terminis BB e CC.
CD BF DF
Divisionis exempla,
28
 a ZA CG
in BHE A. = in ZFC -. - in - FC-
16 28 
BC.
ID A9 A9 A Bl   B B9C
1
B, BC. CiA
AC, BC BCC AB, AC C6.
C D DAC CD DE lBE
Dux autem praecipiuntur in Mulcpllealione de Diritione reductioneo lapata
Forix (excritis, illic in cerminis heterologis, hic in homologis, communbus, in
qui sini, mulciplicaroribus;) non ut plane necellarixe praecipiuntur (quae omitri
non turo possent;) Sed ut salcem commodae lubi nihil in contrarium (uadCat) quo
brevioribus terminis sexibatur ortum, nec trustra Scribancur licera post delendx. Puta.
P