Brard 



^B = - 2^^bLU^Cl^ [1 + 2foo + 2fo2^B- 2fo4^B]^B 



p 2 



X /3+ (foi-fo2^B) + fos^B - E ^kB^Ok - ^/^e 

 L k=0 



K = - Ip^bLU^bC^Ji + 2foo + 2fo2^B- 2fo4^] 



+ ^P^bLU' pB'=Lg-'^mJ[l + 2foo + 2fo2^B- 2fo4%] 



2 



/^ + (foi- fo2^B) + fo5^ - Z] ^kB^Ok - ^^e 



k=0 



^B = 4^°"bLU'c^ [1+ 2foo + 2fo2^B- 2fo4^B]%- 



Taking into account the fact that a diving plane is made of two parts sym- 

 metrical with respect to the (z,x)-plane, and neglecting the squares and prod- 

 ucts of the functions f^^, we get: 



Yb = 



2 pcTg U^c^ 



^P-bU^Cl^^/5 



Lq 



^i^Mu),,^^(t),^. 



^^Mu),^^(^t^B 



u;,, \u/,,^B 



E ^kBfok(t')^- AZ 



%a^L\}'c,_ \-2{^\ ./? + 



2 --^B' 



IpagLUnBC,^ 



U/,, 



Lp\ 



Vb 



1 + 2 /H\ +2 fLS\ C 



[UL, WL. 



4p.bLU^PbC.3-c„^]|4i^2(H)^,.2(^)^,^, 



L3 



E ^kB fok(t')UA)llB, 



- IP-bLU^^ X 2(^) 773=. 



^ (1) 



874 



