/(0.01251/2) =8.94427190999916
/(0.02501/2) =6.32455532033676
/(0.03751/2) =5.16397779494322
/(0.05001/2) =4.47213595499958
/(0.06251/2) =4
/(0.07501/2) =3.65148371670111
/(0.08751/2) =3.38061701891407
/(0.10001/2) =3.16227766016838
/(0.11251/2) =2.98142396999972
/(0.12501/2) =2.82842712474619