Appendix E
Formula Derivation in Chapter 8
The derivation of Eq. (8.9) is as follows:
(E.1) 
where 
or 2 and
(E.2) 
(E.3) 
Thus,
(E.4) 
Therefore,
(E.5) 
where
. 
and 
are the real and imaginary parts of 
, respectively.
The derivation of Eq. (8.10) is as follows:
(E.6)
Thus,
(E.7)
where or 2. Therefore, ...
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