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<head><title>Face == Face -- Compare two faces.</title>
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<div><h1>Face == Face -- Compare two faces.</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>F==G</tt></div>
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<li><span>Operator: <a href="../../Macaulay2Doc/html/__eq_eq.html" title="equality">==</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>F</tt>, <span>a <a href="___Face.html">face</a></span></span></li>
<li><span><tt>G</tt>, <span>a <a href="___Face.html">face</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="../../Macaulay2Doc/html/___Boolean.html">Boolean value</a></span></span></li>
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<div class="single"><h2>Description</h2>
<div><p>Checks whether F and G are equal.</p>
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<table class="examples"><tr><td><pre>i1 : R=QQ[x_0..x_4];</pre>
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<tr><td><pre>i2 : face {x_0,x_1} == face {x_1,x_0}
o2 = true</pre>
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<tr><td><pre>i3 : addCokerGrading R;
5 4
o3 : Matrix ZZ <--- ZZ</pre>
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<tr><td><pre>i4 : C=simplex R;</pre>
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<tr><td><pre>i5 : bC=boundaryOfPolytope C;</pre>
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<tr><td><pre>i6 : F=bC.fc_2_0
o6 = x x x
0 1 2
o6 : face with 3 vertices</pre>
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<tr><td><pre>i7 : dF=dualize F
o7 = v v
0 1
o7 : face with 2 vertices</pre>
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<tr><td><pre>i8 : F== dualize dF
o8 = true</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="___Face.html" title="The class of all faces of complexes or co-complexes.">Face</a> -- The class of all faces of complexes or co-complexes.</span></li>
<li><span><a href="_face.html" title="Generate a face.">face</a> -- Generate a face.</span></li>
<li><span><a href="___Complex.html" title="The class of all embedded complexes.">Complex</a> -- The class of all embedded complexes.</span></li>
<li><span><a href="_facets.html" title="The maximal faces of a complex.">facets</a> -- The maximal faces of a complex.</span></li>
<li><span><a href="_fc.html" title="The faces of a complex.">fc</a> -- The faces of a complex.</span></li>
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