Piecewise method for large-scale electrical networks

A new method for diakoptics, the piecewise method for large-scale networks, is presented. While the subject of diakoptics is well known, it treats only networks described by either impedance or admittance matrix. Using the sparse-matrix approach, the new method treats networks whose constitutive relationships are not restricted to impedances or admittances. Finally, the previously known techniques for diakoptics are merely special cases of the method described here, thus this short paper provides a broad view on this subject.