2! 2 ' 
f,(n,n')= 7 cos Can't 
(Vows 
f,(n,n )= 7 sin®Cnn'tr] 
n! 
FIG. 3-CASE |: nj<i, RELATIONSHIPS 
BETWEEN Oy (nn) AND THE 
FUNCTIONS fy(nin') AND f.(nn'). 
fa(n,n') = + SIN2[nn'7] 
if Tes cos? [nn'r] 
r 3 
1 ‘ \ 
FIG.4- CASE IT: nj >1, RELATIONSHIPS 
BETWEEN ¢y (n'tn) AND THE 
FUNCTIONS fg (n,n') AND fg(n,n’) 
36 
