Kx:
[[ 6.70504986e+00,  1.09493242e-02,  -9.05366503e-06,  7.04295868e-10]
 [ 1.02862739e+00,  -1.95624466e-05,  1.16323678e-08,  -8.17530926e-13]
 [-2.32370736e-05,  -7.36051607e-10,  9.55511717e-13,  -6.66085287e-16]
 [ 7.09006320e-09,  1.67303682e-12,  -1.70552332e-15,   6.09618699e-19]]
Ky:
[[ 4.57120880e+00,  9.87948221e-01,  -6.08930541e-07,  5.93935353e-09]
 [-1.83252205e-02,  -4.48818252e-06,  -1.65287245e-08,  5.88495727e-12]
 [ 1.36991158e-05,  -7.76482616e-09,  1.88402454e-11,  -6.40428274e-15]
 [-9.49274745e-10,  4.40894225e-12,  -5.32104105e-15,  1.80211563e-18]]