e(s) to the graph
 add(g,i,j) --- adds the edge ij
 add(g,elist) --- adds edges specified in elist to the graph
                  elist is an n-by-2 array of edges
 If an end point is larger than the number of vertices, the graph is
 extended. End points must be positive integers. Loops are ignored.</pre></div>

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<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../../up.png"></a></h2>
This function calls:
<ul style="list-style-image:url