Integrate from east to west

[Yang Haijun <navyang@xxxxxxxxxxxxxxxxxxxx>]

Hi,

I have a equation:

dA/dx=B ==> A(i)=A(i+1)-B(i)*dx(i)

Here, B is a 2-D known variable, and also I know the eastern boundary
condition of A. How can I realize the above integration(from east to west) 
in FERRET?
Thanks a lot.


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Haijun Yang
Department of Atmospheric and Oceanic Sciences
University of Wisconsin-Madison
1225 West Dayton St.
Madison, WI 53706
Phone: 608-262-0798(office)
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