x         e
  -0.68243  -1.26483
  -0.57665   0.17476
   1.00781   0.19643
  -0.74900  -1.05292
  -1.65062  -1.79023
   2.48220   2.50074
  -0.28041   0.32618
  -0.69748   0.64816
   0.33410  -0.10903
   1.42150   1.76001
   0.14934  -0.15155
   0.36499   0.57295
  -2.42647  -2.07362
  -2.07501  -2.57634
  -0.69627  -0.50632
   0.47290   0.46695
   0.09729   0.17459
  -1.37883  -1.33275
  -0.10092  -0.10223
  -0.42013  -0.08340
  -1.08409  -1.30346
   0.32803  -0.37982
   0.39680   0.14289
  -0.00916   0.39427
   1.34528   1.18874