Digamma function: Difference between revisions

Revision as of 03:02, 19 June 2005

Revision as of 20:24, 22 June 2005

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and may be calculated with the [[integral]]

<math>\psi(x) = \int_0^{\infty}\left(\frac{e^{-t}}{t} - \frac{e^{-xt}}{1 - e^{-t}}\right)\,dt</math>

===Recurrence formulae===