oo 
x(t) = ho+ | hy(t)(t—t)dt + | | h(t, T2)6(t — 71) E(t — T2)dt dt 2 
—c 
>| J J beuntte 71 )6(t —72)6(t — 73) dt dt 2dr3 
hft1,T2 . . . T%) C(t—tp)S(t—T2) . . . (t—t)dt\dt2 . . . dt; 
A 
3-8 
3 -—— 8 
12 
= | | ue | hate.te, -. « TG(E—T)SC—T2) . . . C(e—T,) 
@t\dt2 . . . Alp, (9.27) 
instead of by Eq. 9.16 for the linear case as, 
x(t) = ho+ | A(r)G(t —t)at. (9.28) 
Here in Eq. 9.27 
h,(t1,T Tn) = ! an H,(@1,@ On) 
MELE), 02 tn) TN pee te n(M1,W2 ... Wp 
X exp(i@1T; + 1W2T2 + . . . +IWzT,)dW\dW2 . . . dw, 
n=0-— oe, (9.29) 
278 
