\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[whrandom]
--- Floating point pseudo-random number generator.

\item[random]
--- Generate pseudo-random numbers with various common distributions.

\item[rand]
--- Integer pseudo-random number generator (obsolete).

\item[array]
--- Efficient arrays of uniformly typed numeric values.

\end{description}
