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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
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Cap. XIX.
DE DEVISTONE.
scribis ipsis Dirisoris repeticionibus non intermista: ad hanc quae videtur FOr.
MaMI.
(6785
6639642
6630642
Ubi, cum (propter quorientis primam figuram 6) diritoris (978) sextuplum
5868 ex Diricendi numeris supra policis 6630 Tubrluctum sic, reliduum superius
NOLLIM CxII77T. Tum ex 7726 subducto diviloris sexcuplo 6816, reliduum
(Tuperne notatum) erit 870. Tum ex 8704 subducto diviloris octupo 7 824,
reliduum eric 8802. Acque hine denigue subducto diriloris noncuplo, 8802, nI-
hil reltabit. Adeoque pertecta es cora diritionis operatio, ee quociens elt 6789.
Si aurem, peracta operatione, placear omnia haec mulcipla in unam Cummam colli
sere, (limul cum tinali residuo siguod tuerit,) eric ea numero diridendo aequalis:
nempe, omnia ablata (simul cum reliduo siquod tuerit,) Simul acdica, relticuent
numerum propolicum: UIE PaTCE.
Sicui vero nimis operotum videbitur, cam cineuta divisoris mulcipla, quam
iplum dirilorem cocies repecicum scribere: Porerie ille horum ucrumvis omitiere.
Nempe, Si linguta dirisoris mulcipla subducenda scribere Superracaneum cIIC Alia ope-
duxerir; pouric ille duas illas operaciones, mulciplicationem scilicet dt subductio rationis
nem junctim perticere, (quod et plecique aruhmericae practica masiltei taciendum sorma.
doccne, ) ad hanc Formam.
Postguam, Diridendo de Dirisore recte collocaris, in-
vematur prina Ouocientis fgura 6; duCatE numerUS
ille sigillacum in omnes Diviloris Figuras, a Cimstra in-
choando, numerique tacti procinus ex Diridendo auteran
euT, nocaris superne retiduis. Sic Sexies 9 Tunt 54; ab.
latis 5 ex 6 reltat L, _ 4 item ex 6 restant 2: deinde sexies
Tunt 42; ablacis 4 Cx T2 reltant 8, e 2 Cx 3 reltat r:
deinde sexies B Tunt 4.8, ablatis isicur 4 ex BC reltanc 77,
e B ex 9 restatL.
Tum promoreatur Divitor uno eradu dextrortum, de
inventa secunda figura Ouorientis 7, ducatur ca uc prius
in dirilorem, ee tiat subductio. Nempe sepries 9 Tunt
63; ablatis 6 Cx 7 restat Y, e 3 ex 7 restant 4: deinde
Sepcies 7 Funt 42: Tublatis 4 Cx 4 rectat 0, _ 9 Cx FOL
reltane 92: deinde sepeies 8 Tunt 56; Fublatis 5 Cx 92
Feltanc 87, de 6 ex 6 reltat 0.
Tercio, promoreatur Divitor uno achue gradu, de
inventa Guocientis figura cerria 8, tiat mulciplicatio 
Tubductio ut prius. Nempe octies o Tunc 72; ablacis 7
ex B restat L, de 2 Cx 7 rettanes; deinde octies 7 Tune
56, Tublaris 5 ex 5 reltat 0, e 6 ex 100 rettant 94
irem oclies octo Tunt 64, lubductis 6 ex 94 reltanc 88,
3.
0638642 Cc
c
6639642 (67
078E
97
_ 4 CX 4 rellat O:
Denique, promoreatur Dirisor adhuc uno Gractu I
82
37886
(67
locum intimum, de inventa tigura Ouociencis ultima 0,
tinc mulciplicatio et subeluelio ut PEIIS. Nempe novies
DTunE