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+\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}