ther two N-D arrays are the same.                        
    <a href="arrayify.html">arrayify</a>   - Converts a set of scalars or arrays into column arrays.            
    <a href="blocklen.html">blocklen</a>   - Counts the lengths of 'blocks' in an array.                        
    <a href="blocknum.html">blocknum</a>   - Numbers the contiguous blocks of an array.   
    <a href="lnsd.html">lnsd</a>       - Last non-singleton dimension of an array.                          
    <a href="nonnan.html">no