# x_min x_max d2 error
  0.86999999  0.86999999 -4.97973056E-08  2.84294399E-10
  0.86499999  0.86999999 -1.90969127E-07  2.57461745E-09
  0.85999999  0.86999999 -8.76548559E-07  1.80440056E-08
  0.85499999  0.86999999 -1.79005634E-06  6.33263842E-08
  0.84999999  0.86999999 -3.36093005E-06  1.81775159E-07
  0.84499999  0.86999999 -5.31956402E-06  4.6002355E-07
  0.839999991  0.86999999 -8.10075728E-06  1.08676098E-06
  0.834999991  0.86999999 -1.14437509E-05  2.33680786E-06
  0.829999991  0.86999999 -1.5790124E-05  4.31396641E-06
  0.824999991  0.86999999 -2.08736622E-05  6.78506412E-06
  0.819999991  0.86999999 -2.70972895E-05  9.80232354E-06
  0.814999991  0.86999999 -3.4078473E-05  1.38274985E-05
  0.809999991  0.86999999 -4.1930776E-05  1.97634663E-05
  0.804999991  0.86999999 -4.96050624E-05  2.89899723E-05
  0.799999991  0.86999999 -5.57559169E-05  4.34675728E-05
  0.794999992  0.86999999 -5.64351367E-05  6.48757697E-05
  0.789999992  0.86999999 -4.61563689E-05  9.1136651E-05
  0.784999992  0.86999999 -2.12585493E-05  0.000115704982
  0.779999992  0.86999999  7.4941982E-06  0.000143434678
  0.774999992  0.86999999  2.14901024E-05  0.00018432315
  0.769999992  0.86999999  1.43066878E-05  0.00023344571
  0.764999992  0.86999999 -1.37131952E-05  0.000290073696
  0.759999992  0.86999999 -5.93000709E-05  0.000351543941
  0.754999992  0.86999999 -0.000120780176  0.00041831392
  0.749999993  0.86999999 -0.000195904747  0.000487358286
  0.744999993  0.86999999 -0.000284242309  0.000558134102
  0.739999993  0.86999999 -0.000384696135  0.000627349219
  0.734999993  0.86999999 -0.000497882778  0.000694675173
  0.729999993  0.86999999 -0.000623595197  0.000757302948
  0.724999993  0.86999999 -0.00076306659  0.000814494672
  0.719999993  0.86999999 -0.000916278725  0.0008635486
  0.714999993  0.86999999 -0.00108405613  0.000904100869
  0.709999993  0.86999999 -0.00126524392  0.000934470072
  0.704999994  0.86999999 -0.00145881134  0.000955938162
  0.699999994  0.86999999 -0.00166129725  0.000969289345
  0.694999994  0.86999999 -0.00186948015  0.000978227349
  0.689999994  0.86999999 -0.00207854596  0.000984796708
  0.684999994  0.86999999 -0.00228532965  0.000992014162
  0.679999994  0.86999999 -0.00248663959  0.000999744808
  0.674999994  0.86999999 -0.0026822379  0.00100861596
  0.669999994  0.86999999 -0.0028727158  0.00101702791
  0.664999994  0.86999999 -0.00306196869  0.00102523865
  0.659999995  0.86999999 -0.00325400753  0.00103188837
  0.654999995  0.86999999 -0.00345240214  0.00103752035
  0.649999995  0.86999999 -0.003652485  0.00104210656
  0.644999995  0.86999999 -0.00384316682  0.00104817424
  0.639999995  0.86999999 -0.00401447365  0.00105496108
  0.634999995  0.86999999 -0.00416579212  0.00106302749
  0.629999995  0.86999999 -0.00429993839  0.00107162179
  0.624999995  0.86999999 -0.00442219471  0.0010817892
  0.619999995  0.86999999 -0.00453615903  0.00109267575
  0.614999996  0.86999999 -0.00464633355  0.00110508285
  0.609999996  0.86999999 -0.00475561805  0.00111814185
  0.604999996  0.86999999 -0.00486831595  0.00113270521
  0.599999996  0.86999999 -0.00498758899  0.00114807045
  0.594999996  0.86999999 -0.00511813371  0.00116518412
  0.589999996  0.86999999 -0.00526279188  0.00118334109
  0.584999996  0.86999999 -0.00542343502  0.00120308437
  0.579999996  0.86999999 -0.00559576606  0.00122288337
  0.574999996  0.86999999 -0.00577285902  0.00124251688
  0.569999997  0.86999999 -0.00594442745  0.00126039224
  0.564999997  0.86999999 -0.0061050349  0.00127705634
  0.559999997  0.86999999 -0.00625098196  0.00129190658
  0.554999997  0.86999999 -0.00638306736  0.00130598843
  0.549999997  0.86999999 -0.00650116783  0.00131879034
  0.544999997  0.86999999 -0.00660756428  0.00133123523
  0.539999997  0.86999999 -0.0067025788  0.00134273192
  0.534999997  0.86999999 -0.00678852352  0.00135414217
  0.529999997  0.86999999 -0.00686559648  0.00136487299
  0.524999998  0.86999999 -0.00693592685  0.00137577338
  0.519999998  0.86999999 -0.00699950826  0.00138625475
  0.514999998  0.86999999 -0.00705825512  0.00139715551
  0.509999998  0.86999999 -0.00711192578  0.00140788657
  0.504999998  0.86999999 -0.00716214566  0.00141927115
  0.499999998  0.86999999 -0.00720826827  0.00143068618
  0.494999998  0.86999999 -0.0072512971  0.00144284268
  0.489999998  0.86999999 -0.00728967474  0.00145487003
  0.484999998  0.86999999 -0.00732348082  0.00146709901
  0.479999999  0.86999999 -0.00735102173  0.00147839837
  0.474999999  0.86999999 -0.00737342702  0.00148923541
  0.469999999  0.86999999 -0.00739036821  0.00149890572