\section{SQRT Square Root of an Array}

\subsection{Usage}

Computes the square root of the argument matrix.  The general
syntax for its use is
\begin{verbatim}
   y = sqrt(x)
\end{verbatim}
where \verb|x| is an N-dimensional numerical array.
\subsection{Example}

Here are some examples of using \verb|sqrt|
\begin{verbatim}
--> sqrt(9)

ans = 

 3 

--> sqrt(i)

ans = 

    0.7071 +  0.7071i 

--> sqrt(-1)

ans = 

    0.0000 +  1.0000i 

--> x = rand(4)

x = 

    0.2550    0.0649    0.8151    0.3022 
    0.2716    0.0796    0.0013    0.9098 
    0.2932    0.5069    0.3592    0.1642 
    0.4481    0.5085    0.3159    0.1587 

--> sqrt(x)

ans = 

    0.5050    0.2547    0.9028    0.5497 
    0.5211    0.2822    0.0354    0.9538 
    0.5415    0.7120    0.5993    0.4052 
    0.6694    0.7131    0.5621    0.3984 


\end{verbatim}
