/(0.11/2) =3.16227766016838
/(0.21/2) =2.23606797749979
/(0.31/2) =1.82574185835055
/(0.41/2) =1.58113883008419
/(0.51/2) =1.4142135623731
/(0.61/2) =1.29099444873581
/(0.71/2) =1.19522860933439
/(0.81/2) =1.11803398874989
/(0.91/2) =1.05409255338946
/(1.01/2) =1