\section{LOWER Convert strings to lower case}

\subsection{Usage}

The \verb|lower| function converts a string to lower case with
the syntax
\begin{verbatim}
   y = lower(x)
\end{verbatim}
where \verb|x| is a string, in which case all of the upper case
characters in \verb|x| (defined as the range \verb|'A'-'Z'|) are
converted to lower case.  Alternately, you can call \verb|lower|
with a cell array of strings
\begin{verbatim}
   y = lower(c)
\end{verbatim}
in which case each string in the cell array is converted to lower case.
\subsection{Example}

A simple example:
\begin{verbatim}
--> lower('this Is Strange CAPitalizaTion')
ans = 
  <string>  - size: [1 30]
 this is strange capitalization

\end{verbatim}
and a more complex example with a cell array of strings
\begin{verbatim}
--> lower({'This','Is','Strange','CAPitalizaTion'})
ans = 
  <cell array> - size: [1 4]
 
Columns 1 to 3
 this    is    strange    
 
Columns 4 to 4
 capitalization    

\end{verbatim}
