Digamma Function - Taylor Series

Taylor Series

The digamma has a rational zeta series, given by the Taylor series at z=1. This is

,

which converges for |z|<1. Here, is the Riemann zeta function. This series is easily derived from the corresponding Taylor's series for the Hurwitz zeta function.

Read more about this topic:  Digamma Function

Famous quotes containing the words taylor and/or series:

    Iambics march from short to long;—
    With a leap and a bound the swift Anapaests throng;
    —Samuel Taylor Coleridge (1772–1834)

    Autobiography is only to be trusted when it reveals something disgraceful. A man who gives a good account of himself is probably lying, since any life when viewed from the inside is simply a series of defeats.
    George Orwell (1903–1950)