∫z-μ-ν+1⁢𝒞μ⁡(a⁢z)⁢𝒟ν⁡(a⁢z)⁢ⅆ⁡z=z-μ-ν+22⁢(1-μ-ν)⁢(𝒞μ⁡(a⁢z)⁢𝒟ν⁡(a⁢z)+𝒞μ-1⁡(a⁢z)⁢𝒟ν-1⁡(a⁢z)),