meν′⁡(0,h2)⁢Mν(j)⁡(z,h)=ⅈ⁢tanh⁡z⁢∑n=-∞∞(-1)n⁢(ν+2⁢n)⁢c2⁢nν⁡(h2)⁢𝒞ν+2⁢n(j)⁡(2⁢h⁢cosh⁡z),