'328 È. D'OVIDIO 



Ordini 10, 6. 



Ordini 12, 6. 



{t, f)%= [taytj'a^ - l {t fY {xy) = {taf tjaj, + \ {t ff {xy) , 



Ordini 8, 8. 

 {h.h'y^:=.{hli')->Kh',-\{hJ^Y{xy), 



{h, h')%= {hh'yhjh'jt'^ - \ ih, h'y (xy) . 



Ordini 10, 8. 

 Ordini 12, 8. 



{thy,= {thyf/h^-l{f,hY{xy) = {thyfjhj^+l{t.}iY{xy), 



Ordini 10, 10. 



(X'/.')%=(x/'r/./A-§(/'X'r(-^2/). 



Ordini 12, 10. 

 Ordini 12, 12. 



.,arsnt^ 



