\section{ISINTTYPE Test For Integer-type Array}

\subsection{Usage}

The syntax for \verb|isinttype| is 
\begin{verbatim}
   x = isinttype(y)
\end{verbatim}
and it returns a logical 1 if the argument is an integer type
and a logical 0 otherwise.  Note that this function only tests
the type of the variable, not the value.  So if, for example,
\verb|y| is a \verb|float| array containing all integer values, it will
still return a logical 0.
