/i>) and it is better to use <a
href="adjacency_list.html"><tt>adjacency_list</tt></a> for sparse
graphs (where <i>E</i> is much smaller than <i>V<sup>2</sup></i>).

The <tt>adjacency_matrix</tt> class extends the traditional
data-structure by allowing objects to be attached to vertices and
edges using the same property template parameters supported by <a
href="adjacency_list.html"><tt>adjacency_list</tt></a>. These may be
<a href="bundles.html">bundled properties</a> or standard (backward-compatible)
<a
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