Arithmetics: 



pei^ auff alfct^anb fcoubciUugc* 

 rid! t : fcergkicijen t>o:male iu 



(Setructc ii s i 



wirffe 5lei< 

 c^d b 



tt>irfjFauc|) 9. binwc^ f* offt ^u 

 anjI/v^nbcr^al f> cjetbcilt w 

 ^cn if?/iv?<id ba uberbleibtvfctjc 



emanbern akicf) / 

 t cb bu bobtf? rcc|>t /ctt>cilr. 



^rfflicD wirff 9.binw^x>on ber 

 ;i4>/fc.x>nnb 7. 

 blctbt4/4. vfi 



PET. LAUREMBERG! 



ROSTOCHIRNSISi 



1NSTITUTIO- 



NES ARITHME- 



TIC^. 



Accurr&ta Met ho do (f facili 

 ompenjdio, non tent urn vulgaritim 



itwerorum, & viinutitrum Aftranomicarum 



atiOjfedett'tnt doRnna-Preportionumy & 'fub- 



tilifiirtia ALGEBRA?. fundament*, pcrquam 



dilueideprbpor>ttntur,& itd explicantur^ut 



jam A quwii intclligifinedifficHl, 



tnte pofiint* 



TotiusMATHEMATlCI Gor- 



PARS f. 



dcct(ftt appendix* de Arithmetics 



per Circmum Profortlon^lemcom^n- 



diosc (twonftrandu, & ujui ac. 



H.AMBURGI, TypJS^A C O B I. R E B K M U M I. 



Impentis 



79 



LIB. I. PROP. VIII." 



5" Radix Cuittia.*, 



Radix duftain Tnplur 



Divifar. 

 quotients , (r.) 



' in name r: primu m ( f 



diviforcm (77) 



) 5 8 7 5 Vtitmerw tddJt'.fitbtmte 



fa de 42. Hie numertu non cxmt Sumo proxim.1 

 26 cu Radicttjfcribenda fob puntto. Ablatu 27 

 442 reftant if.Triplum Riiiicu invent* j, eflf, 

 fcnbendafub 7, ctmwQere fciliproximo fiquen* 

 tipuntto. Eadem radix f dutla tn hoc trip lit f } 

 facit 27, Divifbrcponendiiloco fequenti: DUCA- 

 tur linea.^uotifs *j in ifjfjpelz in ij?Invenio j 

 qu* alien eftmdix,ponendo(ubalteropuntto* 

 Cubiu de f eft n^fupponendusipp punRoaut 

 invcnto Quotients Quadratum Quotients rjits- 

 dem fil 2jgmod duRum in Numerumpnmum 

 "veltriplunt g y fac:t 22$Jcribend<i loco fcqaenti. 

 Infiper <Vuottens$ multiplicAtM in Divifircz? 

 D 4 



NO. 10569 (page 526). 

 Two early works on Arithmetic. 



