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Math Help - derivative of gamma function

  1. #1
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    derivative of gamma function

    hello friends!! I was just wondering, what was the derivative of gamma function?

     \frac{d}{dx}\Gamma(x)=?
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  2. #2
    Member sbhatnagar's Avatar
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    Re: derivative of gamma function

    \frac{d}{dx}\Gamma(x)=\Gamma ' (x)=\psi(x) \, \Gamma(x)

    where \psi(x) is the Digamma Function.
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