\chapter{Miscellaneous Services} The modules described in this chapter provide miscellaneous services that are available in all Python versions. Here's an overview: \begin{description} \item[math] --- Mathematical functions (\code{sin()} etc.). \item[rand] --- Integer random number generator. \item[whrandom] --- Floating point random number generator. \item[array] --- Efficient arrays of uniformly typed numeric values. \end{description}