Qν-μ⁡(cos⁡θ)=-π2⁢νμ⁢(θsin⁡θ)1/2⁢(Yμ⁡((ν+12)⁢θ)+O⁡(1ν)⁢env⁢Yμ⁡((ν+12)⁢θ)),