Equations (10.96), (10.97), (10.98) and (10.99) therefore de- 
fine a system of (2q + 1)(m + 1) inhomogeneous simultaneous linear 
equations and there are (2q + 1)(m + 1) unknown values of A,(h,j). 
Such a system has a solution if the determinant of the equations 
is not zero. It has not been proved that this is the case, but 
further investigation has shown that sub sets of the equation 
starting with h and h' equal to m can be solved. It appears that 
a process similar in the abstract to the concrete process of 
peeling the outside rings off one half of a slice of a Bermuda 
onion one by one will yield the values of Ao (hyj). 
Corrections to the equations 
Some of the area elements in the “ ,O plane and in the Y 4599 
plane contribute only half of the power to the total power that is 
contributed by area elements in the center of the system. Others 
at the corners of the system contribute only a quarter of the 
amount of those at the center. Equation (10.94), for example, 
must be modified if h' equals m. Also the terms in (10.95) for j' 
equal to -q and q have a factor of one half in them. At various 
places in these equations, then, factors of one half and one fourth 
must be inserted. These factors have been omitted in order to simp- 
lify the notation since it is not intended actually to solve such 
a system. (For one reason, the needed data are not available.) 
Further explanations 
Figures 27, 28, 29 and 30 can be studied together in order 
to understand better the procedures described above. In these 
figures A, (8,1) in the w ,® plane is traced as it is mapped into 
= 302) = 
