\section{COTD Cotangent Degrees Function}

\subsection{Usage}

Computes the cotangent of the argument, but takes
the argument in degrees instead of radians (as is the case
for \verb|cot|). The syntax for its use is
\begin{verbatim}
   y = cotd(x)
\end{verbatim}
\subsection{Examples}

The cotangent of 45 degrees should be 1.
\begin{verbatim}
--> cotd(45)

ans = 

 1 


\end{verbatim}
