The consecutive steps when applying reciprocity in conjunction with FDM. A scheme showing the consecutive steps that have to be followed when applying reciprocity in conjunction with FDM. First a current dipole I
is set on the electrode pair AB. Using FDM the potential field is calculated in each point V(ih, jh, kh). With the dipole parameters and the potential field, the reciprocity theorem can be applied. This results in a potential difference at the electrode pair AB.