, ', , .
. , ' . (Y), (r) ():
L=L(Y,r, )
(L) , (Y). . , (r) . ,
L= Y L()
, (s) (L ), :
Y=v()M
dv/d >0, = 1/L
, . . , , 3%, 3%. 3%, 8%, 5% . , , .
. . ' , .
. ' , , . . , , .
. , . , .. , . . :
1) ;
2) ;
3) Գ, .
t = - *
t ; ; * .
, , , .
s = d(6.5)
Գ , . . . , - . , ' ().