  In this paper, we present an implementation of the harmonic polylogarithm of
Remiddi and Vermaseren for Mathematica. It contains an implementation of the
product algebra, the derivative properties, series expansion and numerical
evaluation. The analytic continuation has been treated carefully, allowing the
user to keep the control over the definition of the sign of the imaginary
parts. Many options enables the user to adapt the behavior of the package to
his specific problem.
