HypergeometricU

HypergeometricU[a, b, z] is the Tricomi confluent hypergeometric function U(a, b, z).

Examples

Compute the function:

HypergeometricU[1, 2, 1.0]
(* 0.596347 *)

Asymptotic behavior:

Series[HypergeometricU[a, b, z], {z, Infinity, 2}]

Please visit the official Wolfram Language Reference for more details.