Enable JavaScript to interact with content and submit forms on Wolfram websites. Learn how

Legacy Documentation

The Mathematical Explorer^TM (2001)

This is documentation for an obsolete product.

HarmonicNumber HarmonicNumber[ n ] gives the n harmonic number . HarmonicNumber[ n , r ] gives the harmonic number of order . Mathematical function (see Section A.3.10). The harmonic numbers are given by with . See The Mathematica Book on the web:Section 3.2.5. See also: EulerGamma, PolyGamma, Zeta, Log. Further Examples