j- (. 2.32):
. 2.32
tj - .
:
- () ; t, ;
- ; t;
- , , ; t.
/ . j-
tj = tj + tj + tj
" ", .
" " {t} (, , t ). , {t}0, ({t}0) , , .
tj, j=1,2,3, (. 2.33).
. 2.33
{tj, j=1,2,3,}
Q(t), P(t), f(t), l(t), t, tj, s2, P(th)
.
" ",
, . , .
.