KelvinBei
KelvinBei[z] gives the Kelvin function bei(z).
KelvinBei[n, z] gives the Kelvin function bei_n(z).
Examples
Compute Kelvin bei:
KelvinBei[2.0]
(* 0.249218 *)Plot:
Plot[KelvinBei[x], {x, 0, 10}]Please visit the official Wolfram Language Reference for more details.