MathGroup Archive 1996

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Re: Integration

  • To: mathgroup at
  • Subject: [mg3530] Re: [mg3500] Integration
  • From: Oleg Krivosheev <kriol at>
  • Date: Thu, 21 Mar 1996 01:07:57 -0500
  • Sender: owner-wri-mathgroup at

Hi, Warren

> Does anybody know how to integrate or differentiate x!?  I know that
> there is suppose to be Stirling's formula for approximating x!, but
> what would you have to do if you were to integrate such a function?
> Thanks for any help.

Euler gamma function is the generalization of the x! for non-interger x.
It has well-defined properties. In mathematica, ask about Gamma and
probably Psi (it is logarithmic derivative of the gamma function)     OK


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