[ROOT] complex gamma function

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Hello everybody,

today's question is about TMath::Gamma(double)
As I understand it, gamma can only have real arguments, how can I
calculate Gamma(z) with z complex??

The algorithm from Numerical Recipes (on which TMath::Gamma() is based
appearantly) should also work for complex z.

Thanks for any advice,

Cheers, Christian



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Christian Doerr
Max-Planck-Institut fuer Kernphysik, Heidelberg
Bothe-Labor, room 232                phone: +49-6221-516-259
email: C.Doerr@mpi-hd.mpg.de         www.christiandoerr.de
-----------------------------------------------------------

     "Obi Wan taught you well, young Skywalker."

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