Sn(,I,\ STAUIMTA DEI l'OXTJ 1)1 FABnniCA 137 



[w = "1 



2 (IÌ«H-sK,.)-s(h 

 w = 4 J 



n = l n = 



- 2 a;„ (B„ 4- s K„ ) - V (B'„ + sK'„) 

 w = 4 w = 4 



H- S (Xi . (ìi -+- il\) — Xi') — Xi) S (Ij.;^ -+- S (i'i-^4 



+ Rs cos /3 (Bj,, H- s K,_, — s Q,,,) — (B's.j + s K's,^ — s Q',,,,) 



I 2 (B« + sK„)-s(i, 

 L w = 4 J 



(25); 



l"/y (2) = xw X I 2 (J^" + s K„ ) - s (i, 

 w= 4 



w = 1 ?« = 



-2 a;n(B„ + sK„)- 2 (B'» + sK'„) 

 w = 4 n = 4 



+ s (a;, . Q4 + Q\) - (X(^) - a;^) s Q^^ 4 + s Q'^^ 4 



^ (R, + e) cos /3 (Bs.j + s K5,: — s Q^,,) — B'^,, + s E'.,,: — s Q'^.c) 



«ou l'altra condizione ^y = 4, cni corrisponde l'eguaglianza iv=^v — 1, si ha; 



n= w = 1 



2p(2)=xi~)x 2 (B,i + sK„)- 2 ^»(B« + sK„) 



« = 4 w = 4 



w= 



w= 4 

 + Rs cos /3 (B,,, + s K5,, - s Q,,,) - (BV, + s K's„ - s Q'^,,) 



« = M = 1 



,Fiy(2) = X(^^ X 2 (Bn + sKn) - 2 a;„(B„+sK„). 



M = 4 ?i =: 4 



- 2 (B'« + «K'«)-(X«-:c,)Q^^g-l-sQ'^^g 

 n = 4 



-f- (R, + e) cos /3 (Bg_^ + s K„^ ^. - s Q.J - (B'g^, + s K'g^, - s Q'g^.ì 



Giorn. (U ScU'Uzc Nul. ed- Ecomim. Vul. III. IS 



(26); 



