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Differentiating
equation (14)
and after some algebraic manipulation,
we obtain the following:
 

 
 
 (15) 
Differentiating
equation (13)
we can write the following:
 
(16) 
To evaluate
equation (16)
we need and
;that is,
 
(17) 
and
 
(18) 
Substituting
equation (17)
and
equation (18)
into
equation (16),
we finally obtain:
Next: Evaluation of and
Up: REFERENCES
Previous: REFERENCES
Stanford Exploration Project
10/14/2003