\section{RANDEXP Generate Exponential Random Variable}

\subsection{Usage}

Generates a vector of exponential random variables with
the specified parameter.  The general syntax for its use is
\begin{verbatim}
   y = randexp(lambda)
\end{verbatim}
where \verb|lambda| is a vector containing the parameters for
the generated random variables.
\subsection{Function Internals}

The exponential random variable is usually associated with
the waiting time between events in a Poisson random process.
The PDF of an exponential random variable is:
\[
   f(x) = \lambda e^{-\lambda x}
\]
\subsection{Example}

Here is an example of using the \verb|randexp| function to generate
some exponentially distributed random variables
\begin{verbatim}
--> randexp(ones(1,6))

ans = 

    0.0608    0.0019    1.1266    0.2012    0.5079    3.4205 


\end{verbatim}
