

x'(J'y x' d' y x^ d' y 



x^ d'y 



5-i-6ii-{-3y-|-£ 

 +X(6+4a+y) 

 + f^(3 + a) + v' 



) 5^ ( 



X(2a+ 2 y + e) 

 + M.(2a+y)+v'a 

 +X'(2a'+2y+e') 



I + \' (4 a' +y ') +|m.\ 2a'+y') +v'a' 



i + fi' a' 



^*^^ 



+ fx (y+ e) 

 + vy 

 +fx'(y'+e') 

 + v'y' 



J?' 

 +v'e' 



|3+X' 



jr' ^" 2 



X'' d d z 



\(2|3+2^ + <) 



+fA(2|3+J)+^/ G 



+X'(2(3'+2^'+^' 



X d z 



+ fx('^+<^) 



+.^)+fJL',S'+^') 



+k'(J' 



+ /<' 



I 



5(3 + 5 6(3+3J + < 

 + X(3 j + x(4|34^j 



X'(6+(3')l+fx(3 



+ fx' 1 4A'(6+4|3'+§')|+fji''(2i3'+5')+K'p 

 l + P-'(3+(3'j + y'| 



vnde fequentes refultant aequationes : 



|3+X'=:o; 6 (3 + 5 + X (3 + X' (5 + |3') + fx' rr o; 



^P+3 5 + <^ + X(4(3 + 5) + fji(3+X'(6+4(3' + ^') 

 + fA.' ( 3 + (3') + V' — - o ; 



X(2(3+25 + ^) + fx(2(3 + 5)+l/|3 



+ X' (2 (3' + 2 5' + ^') + fjL' (2 (3' + 5') +/(3'i:io ; 



^(5 + ^) + y5 + fJL'(5'+4') + K'5' = Oi 



v^ + v'^^-©. 



His autem aequationibus adprime fatisfiet fequentibus 

 Valoribus: 



X=rp'; X^r=-(3; fx~§'; fx'=:-5; v^zr-^'; v''^:-^, 

 quibus , in coefficientibus differentialiimi ipfius y fubftitu- 

 tis, fequentera obtinebimus aequationem: 



x' d'y -4- A x' d'y -\-Bx* d'y -^C x' d' y 

 -^D x^ddy -\-Ex dy --{-Fy — o; 



vbi 



