public void SetDiagonal()
 {
   ComplexFloatMatrix a = new ComplexFloatMatrix(2,2);
   ComplexFloatVector b = new ComplexFloatVector(2);
   b[0] = new ComplexFloat(1);
   b[1] = new ComplexFloat(2);
   a.SetDiagonal(b);
   Assert.AreEqual(b[0], a[0,0]);
   Assert.AreEqual(b[1], a[1,1]);
 }