Roboticus@Roboticus-PC ~
$ ./curvefit.pl
 0.8700 5.091
 0.8710 5.088
 0.8720 5.086
 0.8730 5.085
 0.8740 5.084
 0.8750 5.085
 0.8760 5.085
 0.8770 5.087
 0.8780 5.089
 0.8790 5.092
 0.8800 5.096