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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 29, page id 851708439:0053
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29 12 44 3 F0
3t 44310
14.9R 14 2635
160
8958 16 3
42460
42524 5 50
160
2551440
2551448 10
753086580
+
253086590
Adeoque sc consiltet proporrio,
Si 253086590 L’ertiam dant 360 gracus.
Tum 32235395 Tertiam danc eradus quot?
FE Mulciplicato termino terrio per secundum, ee divisione facta per primum.
habebitur quaesitus numerus Graduum intexrorum, cum adjuncta tractione com
muni; qua tractione communi ad Seragelimalem reducta, habebitur Relponsum in
Cradibus, minurisque primis, secundis, certis ec.
Auc etiam, S reducatur item terminus secundus graduum 360 in minuta
cerria; (quod tactu opus esser si sraditurs 360 achaererent minuta prima, se
cundam _ certia:) Eacta ui prius Mulciplicatione d Divitione, habebitur relpon-
sum in minutis sertiis; qua reducenda demum forent in gracus ec. F L limi-
liter in aliis operationibus consimilibus.
Dui quidem procectus quamvis lac operolus sic, expeditior tamen est (post
introductas figuras numerarias quas xtate Prolemaei ignorabant) quam per Sexa-
selimatium Mulciplicationes ee Diritiones.
Sccundum hanc sevacesimalium methodum, Prolemaus Ractium Circuti in
partes 60 diridebat (aceoque Diametrum in 120:) et harum quamlibet in 60
minuta prima, e quodliber horum in toridem secunda, et Sic deinceps ue fuerie
ruS. Ft similicer Areum seu Peripheriam, huic chordx respondentem, (hoc
eht parrem sextam corius Peripherix, cujus chorda aequatur Ractio,) in 60 par-
tes (uoras) quas gradus dicimus; (adeoque toram peripheriam in gradus 360:)
e quemlibet gradum in 60 minuta prima, primumque in 60 secunda, et lic
conrinue.
tc consequenter ad haec, Tabellam Chordarum seu subtentarum construit
(in Raclii parcibus et hacum minuris primis, sccundis, ecc.) exposiris Accubus
respondentium.
Hlujus Joco, ineroduxerunt srabes (ut expediriorem) Tabellam sincum (qui
Tunc lemi chordae arcuum duplorum,) Arcuhus respondentium Gimili Lexagena-
ria partitione designatis. Quod magis ad imitationem Ptolemai (in dividen-
dis arcubus) factum puro, quam quod illud factu necesse Foret, post incroductas
tiguras numerarias quas non habebat Prolemaeus, Led habuerunt Trabes.
Arzachet a Prolemaeo tactenus differe, quod quam divilerat Prolemaus Dia-
metrum in partes +20, diridat ille I ParreSs 390; uc minus opus foret subdi.
rilionibus.
cur aurem voluerine Amrigui fractiones omnes ad unam aliquam denomi-
nationem
124C
S0