Need help : dimension problems

Hallo NCL,

I have a question regarding dimension problem.
I want to solve this equation *Y= A cos (B+C) *in NCL,
where:
A: is two dimensional field (time, lat,lev)
B: is two dimensional field (time, lat,lev)
C: is an array for longitude, let say expands from ispan (-180,180,2)

How could I solve this problem in order to produce Y with dimension
*(time, lev, lat, lon)*

Thank you
Chang

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Received on Wed Feb 5 12:20:57 2014