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<head><title>isGraph -- determines if a hypergraph is a graph</title>
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<div><h1>isGraph -- determines if a hypergraph is a graph</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>b = isGraph H</tt></div>
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<li><div class="single">Inputs:<ul><li><span><tt>H</tt>, <span>a <a href="___Hyper__Graph.html">hypergraph</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><tt>b</tt>, <span>a <a href="../../Macaulay2Doc/html/___Boolean.html">Boolean value</a></span>, <tt>true</tt> if all edges in <tt>H</tt> have size two</span></li>
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<div class="single"><h2>Description</h2>
<div><table class="examples"><tr><td><pre>i1 : QQ[a,b,c,d];</pre>
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<tr><td><pre>i2 : isGraph(hyperGraph {a*b,b*c,c*d})
o2 = true</pre>
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<tr><td><pre>i3 : isGraph(hyperGraph {a*b,b*c*d})
o3 = false</pre>
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<tr><td><pre>i4 : isGraph(hyperGraph {a*b,b*c,d})
o4 = false</pre>
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<div class="waystouse"><h2>Ways to use <tt>isGraph</tt> :</h2>
<ul><li>isGraph(HyperGraph)</li>
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