По мотивам задачника "Математического просвещения"

Сопротивление между узлами решетки

D. Baranov^a, M. Skopenkov^b, A. Ustinov<sup>c

a</sup> M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
^b Institute for Information Transmission Problems, Russian Academy of Sciences
^c Institute for Applied Mathematics, Khabarovsk Division, Far-Eastern Branch of the Russian Academy of Sciences