Hi, I'm starting to learn how to use fipy, and I can't quite figure out how to represent a non-local interaction I have in my model. I need to do a convolution of the field with the interaction potential. How do I get values of the field out into an array that I can perform FFT's on, and then how should I assign the result of the convolution to a term in the evolution equation?
Thanks, -Ranjit
