\HeaderA{number-class}{Class "number" of Possibly Complex Numbers}{number.Rdash.class}
\keyword{classes}{number-class}
\begin{Description}\relax
The class \code{"number"} is a virtual class,
currently used for vectors of eigen values which can be
\code{"numeric"} or \code{"complex"}.

It is a simple class union (\code{\LinkA{setClassUnion}{setClassUnion}}) of
\code{"numeric"} and \code{"complex"}.
\end{Description}
\begin{Section}{Objects from the Class}
Since it is a virtual Class, no objects
may be created from it.
\end{Section}
\begin{Examples}
\begin{ExampleCode}
showClass("number")
stopifnot( is(1i, "number"), is(pi, "number"), is(1:3, "number") )
\end{ExampleCode}
\end{Examples}

