Having approximated the square root by a polynomial ratio,
Table .3 or Table .4 can be inverse transformed
from the horizontal wavenumber domain *k*_{x} to the
horizontal space domain *x* by substituting
.As before,
the result has a wide range of validity for *v* = *v*(*x*,*z*) even though the
derivation would not seem to permit this.

Stanford Exploration Project

10/31/1997