can I use mpb to calculate derivative of fields?
Let's say that a field is given by an eigenvector A. is there an algorithm that uses the eigenvector and the reciprocal lattice vectors and can calculate a derivative of that field according to x or y - i.e. give back an eigenvector B that represents the derivative? (won't be a true eigenvector of the original problem of course, but that is not the point)
If it matters, I'm dealing with a 2D problem
thanks
Walla! Mail - get your free 5G mail today
_______________________________________________ mpb-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/mpb-discuss
