net2 example
R = [1 3 6 2]; I = [10 0]; G = [ sum(1./R(1:3)) -sum(1./R(2:3)); -sum(1./R(2:3)) sum(1./R(2:4))] B = I'; V = G\B
G = 1.5000 -0.5000 -0.5000 1.0000 V = 8.0000 4.0000
R = [1 3 6 2]; I = [10 0]; G = [ sum(1./R(1:3)) -sum(1./R(2:3)); -sum(1./R(2:3)) sum(1./R(2:4))] B = I'; V = G\B
G = 1.5000 -0.5000 -0.5000 1.0000 V = 8.0000 4.0000