  a(1,1) = -2.0
  a(2,1) = 2.0
  a(3,1) = 0.0
  a(1,2) = 1.0
  a(2,2) = -2.0
  a(3,2) = 1.0
  
  q(0) = -2.0
  q(1) = 1.0
