Bi(-z)=z/3(J-1/3(ζ)-J1/3(ζ))=12z/3(2π/3H1/3(1)(ζ)+-2π/3H1/3(2)(ζ))=12z/3(π/3H-1/3(1)(ζ)+-π/3H-1/3(2)(ζ)),