w2⁢(z)=ⅇ(1-c)⁢π⁢ⅈ⁢Γ⁡(2-c)⁢Γ⁡(b-a)Γ⁡(1-a)⁢Γ⁡(b-c+1)⁢w5⁢(z)+ⅇ(1-c)⁢π⁢ⅈ⁢Γ⁡(2-c)⁢Γ⁡(a-b)Γ⁡(1-b)⁢Γ⁡(a-c+1)⁢w6⁢(z),