
</pre><img vspace="5" hspace="5" src="ramsey_02.png"> <h2>Release storage<a name="4"></a></h2><pre class="codeinput">free(g)
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            Published with MATLAB&reg; 7.2<br></p>
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%% Lower bound for the Ramsey number R(4)
% We show that the the Ramsey number R(4) is greater than 17 by presenting
% a graph with 17 vertices that has clique and independence numbers equal to
% three. The Matgraph |alpha| and |omega| functions require the