Difference between revisions of "Digamma"

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(Created page with "The digamma function $\psi$ is defined by $$\psi(z) = \dfrac{d}{dz} \log \Gamma(z) = \dfrac{\Gamma'(z)}{\Gamma(z)}.$$")
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Revision as of 06:44, 31 October 2014

The digamma function $\psi$ is defined by $$\psi(z) = \dfrac{d}{dz} \log \Gamma(z) = \dfrac{\Gamma'(z)}{\Gamma(z)}.$$