22 Data points generated from a nonlinear function 
 -2.00	  0.0099
 -1.60	  0.0154
 -1.40	  0.0200
 -1.20	  0.0270
 -1.00	  0.0385
 -0.80	  0.0588
 -0.60	  0.1000
 -0.40	  0.2000
 -0.20	  0.5000
 -0.10	  0.8000
  0.00	  1.0000
  0.10	  0.8000
  0.20	  0.5000
  0.30	  0.3555
  0.40	  0.2000
  0.60	  0.1000
  0.80	  0.0588
  1.00	  0.0385
  1.20	  0.0270
  1.40	  0.0200
  1.60	  0.0154
  2.00	  0.0099