> Dear Joseph, > > As per your instructions I have build the system, but the code is not > giving the desired result. > Here is the code please have a look on it.
'y' should be the y position of the sites of the hopping, not an input parameter to the system construction: def hoppingz(site0, site1): y = site0.pos[1] ... Happy Kwanting, Joe
signature.asc
Description: OpenPGP digital signature
