/(0.011/2) =10
/(0.021/2) =7.07106781186548
/(0.031/2) =5.77350269189626
/(0.041/2) =5
/(0.051/2) =4.47213595499958
/(0.061/2) =4.08248290463863
/(0.071/2) =3.77964473009227
/(0.081/2) =3.53553390593274
/(0.091/2) =3.33333333333333
/(0.101/2) =3.16227766016838