w5⁢(z)=Γ⁡(1-c)⁢Γ⁡(a-b+1)Γ⁡(a-c+1)⁢Γ⁡(1-b)⁢w1⁢(z)+ⅇ(c-1)⁢π⁢ⅈ⁢Γ⁡(c-1)⁢Γ⁡(a-b+1)Γ⁡(a)⁢Γ⁡(c-b)⁢w2⁢(z),