Bi⁡(z)=z/3⁢(I1/3⁡(ζ)+I-1/3⁡(ζ))=12⁢z/3⁢(ⅇπ⁢ⅈ/6⁢H1/3(1)⁡(ζ⁢ⅇ-π⁢ⅈ/2)+ⅇ-π⁢ⅈ/6⁢H1/3(2)⁡(ζ⁢ⅇπ⁢ⅈ/2))=12⁢z/3⁢(ⅇ-π⁢ⅈ/6⁢H-1/3(1)⁡(ζ⁢ⅇ-π⁢ⅈ/2)+ⅇπ⁢ⅈ/6⁢H-1/3(2)⁡(ζ⁢ⅇπ⁢ⅈ/2)),