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The matrix defined in (2.80) may be presented most
conveniently in rectangular coordinates by expressing each entry as the
multiplication of two terms:

(2.90) 

(2.91) 
where
and
.
When both and tend to 1 we get

(2.92) 

(2.93) 
where
and
.
The matrix will have entries given by

(2.94) 
Back to Kemp Acoustics Home
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Jonathan Kemp
20030324