Fd>RMVL. DIFFERENTIALIVM. jj^* 



Tota igitur inueftigatio huius conditionis eo 

 redit , vt valores litterarum v^TTjHetc. determinen- 

 tur , quem in iinem notetur efle. 



+ dq{f(^dx-r^'^Pdx^f^'^]Si'dx)^etc. 

 tum d.VfV^dx—dV.fV^dx-^-WV^dx, 



ex quo fequentes deducimus aequationes : 



lK—!A/Vidx^VfM'dx ; v — NfVdx-^-Vf^^dx 



n:=zVfV'dx-+-V(/?'dx--/^^^N{dx) 



K -Q_JV^dx-^V{ f(^dx-f^'^?'dx+/^'m'dx) 



^ =:RfV' d X-+ V ifR' dX'-j ^'^(^dx+f^'^?'dx-f^'^N'dx) 

 etc. 



Hinc autem colligitur : 



^ -■£/vV:r+V'P+V(P'-/NVx)-^g (f Vdx-f ^'^NV x) 



p^J^^lV^dx + .V'^^+Cl^-^^^^^ 



■^p'^(^dx+n'^Y'dx-f^*^N'dx) 

 ctc-'^ilfd; 



inji(b{ji)nf ■ 

 /;-• ^*^ «iiiAv- . His 



