F_AREA(A,f,t) nThis macro returns the face area vector ... A[0] , A[1], A[2] in the x, y, anz z direction ...nNV_MAG(A) would give you the magnitude of the above vectornnIf you are in a cell and want to loop over the faces, use c_face_loopnAlso search the manual for C_FACE and C_FACE_THREAD ... if you want to access data on the cell facesn