158 DE CALCVLO MOTVS 



ita vt fit ~ — ^ fin y; \nde vtiqiie quod nobis 

 cnit propofitum , agnofcinniis , (cilicct (juoties ano- 

 maliac 8 finus cuancfcit , fimul difiLintiac v diifo- 

 rentiale in nihilum abire , eamquc proptcrea \cl 

 maximam vel minimam euadcre. Tum Acro hinc 

 in genere incremcntum diHantiae v ad clemcntum 

 </0 reducitur , quod ipfum iam cum clcmento co- 

 gnito dr ita comparatur , vt ob 'D-nF—lp fit 

 ''/d^P' zzma^pdr^ , feu vvd^p—adr V tfiap. 



Cr- , I -+-Qcof.y 

 um autem iit ^ i= — ~ — erit 



d V d p ; I -4 - 17 co/. ij) d<7 cof.»-t-qdufin.v 



H, V — pp p 



quae forma ipfi '^-f- fin- a aequalis f-ida, pracbet 



g [d(^-d>i) fin.y r -ji^+^ coC.-d) -dq cof y- ^^^-dq cof j» 

 qua noua diffcrentialium relato contaictur. 



XXVIL 



Rcliquas detcrminationcs pcti oportct cx for- 

 mulis fupra inuentis : 



p—zU-zn? et ',- — '-^'^ -} --^n{K-(^) 



quae diffcrontiatac ct 1(ko P, Q^ , R valorcs lupra 

 exhibitos rcftitucndo fuppeditant, 



dpzz.— ind? — —:invud(^(mv[i;;i ~ ~r) 

 d.\.~d. '^/-^zzznd(l-2ndR — 



~s--2nu{dvcoC.iK-'V(i(p[in.y)iir»-,j)' 



Cum 



