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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 73, page id 851387705:0093
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# Lines: 57 recognised, mean confidence 0.84
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a
CaDXVL F I BaDDCEIOHCCL.
adhrue auterantur 3, deerune omnino 8. Si igitr residua istaec omnia partieula-
ria in unum collisancur, eric illud 1 2
Similuer i exemplis lub. et ex A F 2B = 3C + D. auterantur,
2B - 2D + P, manebit A- 3C45BL. e Pactet MM alIIS.
34 7 34 = 2a-
21 = 34  21 - lc
C. +
L
3C + 3D -
4b 1
E Ouod A Supponamus A, B, C, D, Ln SignisCarE L, 2, 3, 4,5. F.F a, _, _, Signi-
ficare 2,4, 8. cancundem ralebun illa acque AXC.
0 O 6+ 6= 0
Alque haec quidem, de Addirione d Subeluctione Aleebrica de Speciota, dicta
Fusticlane.
Ouod autem superius de Rdditione monuimus, illud etiam de uirisque Rddicione
ee Subductione (sire Numerosis sire Speciolis) incellisendum est; Nempe Duan-
de plures quantitates sunt continue vel addendae vel subducenda vel pariim ad
dendae parsim subducendae perinde est quo ordine instituantur operationes, modo
omnes continue perasantur. Non enim de ordine Ceu lieu quancicatum quaricur
Ted de earum magnicudine; (nempe quancum illud suc quod emersic, quocunque
6= 5. e A FB - C = B  4-C
2 - 4 - 2 - 30
2=0 84123
tandem ordine ailpOnanEuIT.) Nempe 6 +
a  C + B = B -
I alto.
16 + 12 1 4 - 20 = 22
A = - C + A F B = - C F B F A. KC SIILILCF
C A P. XVI.
Rdditionis  Subductionis, per contrarias operationes,
probatio. Objectionibus Rami respondetur. Duaestiun.
culae aliquot familiares solvuntur Probatio novenaria.
Vtut lubrica sut, non tamen contemmenda. Duomodo
reddi potest certa.
DOs tracticam Addicionis ee Subductionis praxin; annectendum videtur ali-
quid de veriusque Probacione sive Examine. Cum enim in Rrichmetices
 Praxi, cironibus praelerrim ee parum exereitatis, error caleuli Facillime possit
irrepere: solent hic Aruhmetica Practicae Masiltri mechodos tradere operationem
sam peractam examinandi, quo metius perspectum sic numquis error Tublic. Ouam
exo rem in hunc locum diltuli, quod Addicionis et Subductionis examinationem
simul cradendam esse duxerim; paruum quod eadem tere sic ucriusque mechodus;
parcim etiam quod neucra seorlim cum commode cradi postic, cum alcera alcerius
probacionem praellet.
Addicionem peractam solenne ett ver Subductionem (operationem ipti con- Fnami-
Erariam) examinare. Cum enim duo numeri simul addici Lune, si ex summa sub. natio sev
ducacur eorum alceruter, seltabic reliquus. Oc ( 2 f3
monebunc 3; si auterantur 3 manebune 2. Acque idem
pacebie, si in tor punetis res perasatur. Si enim puncta
bina ee cerna contticuant quina; delecis z munebun 2;
2
i Crunt 5 = 2 = 3, ∞5 15 L. HOC CA, A
_x 3 acdica constituane 5; cum, si ex 5 auterantur 2
l100ac10
Additio-