ⅆnⅆ⁡zn⁡(ⅇ12⁢z⁢zμ-12⁢Wκ,μ⁡(z))=(-1)n⁢(12-μ-κ)n⁢ⅇ12⁢z⁢zμ-12⁢(n+1)⁢Wκ-12⁢n,μ-12⁢n⁡(z),