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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)
# Folio 117, page id 851387705:0137
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E DIVISTONE
COntTa vero, Si quaeratur Duis numerus est qui
Cap.
tactus 705 diricatur pel lactorem
Factor Guan e quta
A X3 =- 763, erit
uilibus.
in 4 ductus faciet 12d Pactum 22 dividatur per 4 4) 12 (3
(alterum ex tactoribus) ee prodibit religuus la
ctor quaelicus 3. Vel, li numerus gualus alcatur
A; cum licsuxca quaeltions tenote) AX4 = 12.
X 4 = 2
dividendo untaltique aequacionis parcem per qu crit A = 13 = 3.
Icem Cujus numeri triplum est
705. Hoc e, Duis numerus in
3 ductus Taciet 705. Si numerus
dacum Peu cognicum 3, prodibit
lieum Lc qudt mintes distribuendi sunt 7488FB aurei, ut quilibet habeat 282.
Divitio 148818 per 283, prodibis milicum numetio slal. E pariter in H.
140610
Si autem quaeratur, Verbi gratia, Duinam numeri sint invicem ducendi ut factus
Sit 24. Vel Duis per quem dividendus, ut quoriens sit 24 Iujusmodi quaestiones
nugaces elent; quippe ex dacis in quaectione nihil cerri elicicur: posset enim mo-
dis innumeris responderi: puta
X6, 2XZX6.
AF1 3, , 3) 1, 2) 3 26, dec. Nam ex Eolo tacto in mulciplicatione, de F2
ctoribus neuciquam constabit; ut nec, in Diritione, ex Tolo Quocience conctabit
de Diridendo auc Dirilore. Sed de his hactenus.
Acque hactenus quidem de quatuOE APIFHMCTICES (UE VOCANEUT) SpeciebuS, seu
porius Partibus, Additione, Subductione, Mulciplicatione, ee Dirisione, dicta luffi-
CianE. Mulca aurem qua de his opcracionibus apud Aricheticae practiea magi-
Aros pastim occurrunt, ee speciatim operationum aliquor in nonnullis compendia,
rariolque modos has operationes peculiaribus subjectis applicandi, (pura, in rC
nummaria, de Faenore, de mercatura; in re altronomica, de tempore, de motu, Co.
rumque reductionibus, _c.) Sciens praetereo. Ouippe infiniti ellet laboris, et qui-
dem superracanei, ea omnia quae id senus dici polsent figillarim prolequi. Nec
quidem id nostri operis est; sed porius operacionum fundamenta cradere, iplosque
Fontes aperire, unde scientitice e demonttracire postint vera procedendi rationes
incelligi. Ouas qui rire incellisir, non modo majori Fructu e roluptate iptas ove
rationes exercebit, easque in ulum proteret, quam fi caco ductu incedat, et qual
Andabatarum more puenet; sed et multo tirmius quae noric memoria recinebit.
Duas enim laepius audimus querela, Rerum Machematicarum cognitioneM, APICH-
merices praefertim, cirissine dpete ni astidua exercitatione retineaTE;
chodum, memoriter catum cuo, spras pelatat satlones penitus ignorent; quao
quidem ruleares arichmericae practica Magistri plerumque vel ipsi nescinne, rel
Lalcem plus Paris rericent; eisque edocti Mechanicam porius (regulas minime in-
rellectas persequendo) exercent, quam Arichmeticam. OuI auteM ip(IIIS PTAXCOS
rationem Caris perlenciseune, (nec tantum exco sinere, regularum mémoriter
cognicarum ductum implicica tide securi incedune,) judicio magis quam memoria
non aliunde oriuntur, quam quod plorique Arichmetices praxin, sire operandi me
ducti, difticilius ed sua u aetu  duS crullum i Paciencul.