Hi Domingos, Thank you for letting us know about this. You are right, the integrals in that example should both be in the X direction. Domingos Fernandes Urbano Neto wrote: Dear Ferrets, Im need comput integral from East to West, however I got confused with the instructions in the Ferret's manual, which says: Let integral = my_var[Y=lo:hi@IIN] Let reverse_integral = my_var[Y=lo:hi@DIN] - my_var[X=lo:hi@IIN] Is it realy "X" in the second part of the equation? Thanks, Domingos. |