MATHEMATICA. l 3 



dy d*y 



primis aequationibus j pofitis ~ =$', ^ = 0% 



dz d^z f ^ 



- = *'* ^-=^ # atque ^(v^-.^) 9 ^^') 



*H(ft— 0') a ) = #, deducuntur 



(V0WWOS 

 *-« ^ 



7 p i& 



quibue valoribus in aequatione (5) fubftitutis , est 



*~ (n*0'+^')& 



Ex aequationibus (4) et (6) derivantur 

 ;//' ^_ fl" 



^ ~~ <// <£" — <p' J7' Ct " ~~ tf.tf'—(jf y 

 quarum quantitatum fubftitutione peracta , obtinetuf 



ergo 



« = x— t 1 + $'*++'*) (0 'Q"+4/[4/y 

 Q"*+ ••// /a +ft/ 0" — <p' fy 



(i+4> /2 +^' 2 ;(cp"+^(^'^0y)) 

 ~" J 0~r~~~~~~7~~z~7-7-^ 



(i+f+f)^"-^^"^")) 

 (i+<p /2 +<// 2 )! 



F 2 



