\section{COSD Cosine Degrees Function}

\subsection{Usage}

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

The cosine of 45 degrees should be \verb|sqrt(2)/2|
\begin{verbatim}
--> cosd(45)

ans = 

    0.7071 


\end{verbatim}
and the cosine of \verb|60| degrees should be 0.5:
\begin{verbatim}
--> cosd(60)

ans = 

    0.5000 


\end{verbatim}
