\section{UMINUS Overloaded Unary Minus Operator}

\subsection{Usage}

This is a method that is invoked when a variable is negated,
and is invoked when you call
\begin{verbatim}
   c = uminus(a)
\end{verbatim}
or for 
\begin{verbatim}
   c = -a
\end{verbatim}
