User:Takarazuka Family Land/memo

Wikipedia:Translation/*/How-to

Wikipedia:Translation/*/How-to

Hankel function

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$H\epsilon [z]=\int _{C\epsilon }{\frac {[-w]^{z-1}e^{-w}}{1-e^{-w}}}dw$

For $I[w]<0,|arg(-w)|<\pi ,\epsilon \neq 2\pi k>0Where{C\epsilon }$ is Hankel contour