     1       1.80545257       0.73811114
     1         5      -4.10636797       0.54564169
     2         8      -5.76811976       0.52039618
     3        12      -7.62995880       0.25443887
     4        15      -8.01672533       0.06329092
     5        20      -9.51983614       0.28571759
     6        25      -9.54169917       0.27820083
     7        28      -9.99984082       0.00535271
     8        30     -10.00000000       0.00000221

out = 

  struct with fields:

             Params: [1&times;1