i4<J T>E TERTrRBATIONE 



vbi primo nowudiim eflc k k qiuntitatcm prae // h mi- 

 oimam , fimulijiic proxime cflfe gg — h hV [ i - nn) 

 nifi motus gynuorius vehcmentcr fucrit \clox. Sit igitur 

 gg — hhV[i— nn)~akk.^ \t fit proximc d d 



z:zadvi i -|- « cof. v) — ^!^'~l ~l , qui vnlor cum 9 

 tautum in terminis miniiiiis occurrat , ad flpproxiiiiiuidiun 

 fatis eft exacflus, 



§. 25. Incipiamus ab acquatione poftcriori , quie 

 hanc indicct formam ; 



du — z' iz' 



ct intcgrando ^7^7 i^ \ a /f J £^, d dn Cm. 2 -|- C Z» A at 

 cum a b fit minimtim in hoc tcrmino fufficit pro z po- 

 ccre /; ( i + o cof. i? } , ct ob (i u) — jx </ 1' ( i 4- ;; cof. i' ) 

 crit 



Nequc vcro hinc vtilcs conclufioncs dcduccre valcbimus , 

 nifi cxccntriciiatem n valde paruam ftatuamus , quod 

 quidcm pro applicatione ad motus plauctarum tuto face- 

 re potcrimus. 



f. 2(J. Hoc autcm cafu cum fit j^,;:^- — //i; 

 (i-»cof c) proximc, erit </5— (/:'(a-i-H(a4-i)«cof v) 

 hincquc d^Ji^ .-xrrri^W^ —-d^[-o.^{j.-\-a)nzol'v) 

 et proximc x:::^:^^^^^ =' ^ H ^ -^-(1-3«)« cof v ) 



ficque cmf^-~i':A,--ii-c^W^^^^^^^ 



fcd fufiiciat folum primum tcrminum rctinuilfc vt intc- 



grationc inftituta fit /-(^^,*. =: ' ( i -a) cof. 2^ idco- 



ouc habcbiLur latis accuiraic 



^ zzd<p 



