DP: Write node voltage equations 11100000 -10010100 x∏S入1S 3 00-10-100 2 00000-1-1-1 4k 10000000 IS 01000000 7A8 00100000 IS 00010000 00001000 1-10 00000100 130 00000010 Y=AY A 103-1 0000000 =104000000 J =a -v 0 2000000 0DP: Write node voltage equations.             − − − − − − = • 0 0 0 0 0 1 1 1 0 0 1 0 1 0 0 1 1 0 0 1 0 1 0 0 1 1 1 0 0 0 0 0 A                           = • 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 Ye             − − − − − − − − = = • • • • 0 1 1 3 1 0 3 1 1 3 0 1 3 1 1 0 T Yn AYe A     T s T s I V 1 2 0 0 0 0 0 0 0 4 0 0 0 0 0 0 = = • •             − − = − = • • • • • 0 0 1 1 ( ) n s Ye Vs J A I • • • Yn Vn = J n 1S 2A 1S 1S 1S 1S 1S 1S 1S 1A 4V + − n1 n2 n3 n4 n1 n2 n3 n4 0 • 1 2 3 4 5 6 7 8