PER MELIVM ELASTICm 8x 



erlt prlmo : a-l-g-|-y-|-(^— o et 5(-H35-i-€-H© = 0. 

 Deinde erit pofito dt conftante : 



^ ——annpp cof. npt— % nnpp fin. npt 



^2 ——^nnpp cof npt— ^nnpp fin. npt 



j^ ——ynnpp cof npt— (^nnpp fin. npt 

 •vnde fequentes orientur aequationes : 



— app — g — a 



-i^-^^-i-€}PP-T>-(Z 



§. 25. Manifeftum ergo eft ex fimilitudine harum 

 aequationum coefficientes 51 5 33 1 ^ > ^ fimili modo de- 

 terminari , quo coefficientes a, S,y,^. Hos autem in- 

 veftigantes inueniemus : 



^ — a—app:, rt-h-S~a «—,«/>/> 



yinS— (a-l-S)/)p ; —a — :iapp-\-ap* 



a -h S -I- V = 3 a — 4 «/>/> -4- a/)* 



^ rr Y — ( a -f- ? -h Y ) p/> =:= oc — <J a/)/) -h 5 «/>*— «/)*• 

 Quare cum fit a-hS-|-y-|-(5^ — o habebitur 



o rr 4. — 10 pp -f- (Jp* — /)* 

 cuius aequationis fiidores funt : 



— {z-pp)[CL-^PP-\-p*] 



vnde pro pp fequcntes tres valores reperiuntur : 



fp~2 \ pp — Z-i-V 2 J pp—Z—Vz. 



Tom. I. L f. a5. 



