g(2)=-0.416147
         0          1
  0.392699    0.92388
  0.785398   0.707107
    1.1781   0.382683
    1.5708 6.12323e-17
    1.9635  -0.382683
   2.35619  -0.707107
   2.74889   -0.92388
   3.14159         -1
         0          0
  0.392699   0.382683
  0.785398   0.707107
    1.1781    0.92388
    1.5708          1
    1.9635    0.92388
   2.35619   0.707107
   2.74889   0.382683
   3.14159 1.22465e-16