M =MatrixSpace(QQ,4,4)
A=M([0,1,0,1,1,0,1,0,0,1,0,0,1,0,0,0])
X=Graph(A)
X.plot()

Kreyszig-21.1- 9-U (last edited 2010-12-18 11:49:23 by K.Swetha)