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<head><title>dim(Polyhedron) -- computes the dimension of a polyhedron</title>
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<div><h1>dim(Polyhedron) -- computes the dimension of a polyhedron</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> d = dim P</tt></div>
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<li><span>Function: <a href="../../Macaulay2Doc/html/_dim.html" title="compute the Krull dimension">dim</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>P</tt>, <span>a <a href="___Polyhedron.html">convex polyhedron</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><tt>d</tt>, <span>an <a href="../../Macaulay2Doc/html/___Z__Z.html">integer</a></span></span></li>
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<div class="single"><h2>Description</h2>
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Returns the dimension of a polyhedron.<table class="examples"><tr><td><pre>i1 : P = convexHull matrix {{1,-1,0,0},{0,0,1,-1}}
o1 = {ambient dimension => 2 }
dimension of lineality space => 0
dimension of polyhedron => 2
number of facets => 4
number of rays => 0
number of vertices => 4
o1 : Polyhedron</pre>
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<tr><td><pre>i2 : dim P
o2 = 2</pre>
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