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Macaulay2-1.3.1-8.fc15.i686.rpm

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<head><title>fc -- The faces of a complex.</title>
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<div><h1>fc -- The faces of a complex.</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>fc(C)</tt><br/><tt>fc(C,d)</tt></div>
</dd></dl>
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<li><div class="single">Inputs:<ul><li><span><tt>C</tt>, <span>an <a href="___Complex.html">embedded complex</a></span></span></li>
<li><span><tt>d</tt>, <span>an <a href="../../Macaulay2Doc/html/___Z__Z.html">integer</a></span>, positive</span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="../../Macaulay2Doc/html/___List.html">list</a></span></span></li>
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<div class="single"><h2>Description</h2>
<div><p>Returns a list with entries lists with the faces of C starting in dimension -1. If d is given then faces of dimension d are returned.</p>
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<table class="examples"><tr><td><pre>i1 : R=QQ[x_0..x_5]

o1 = R

o1 : PolynomialRing</pre>
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<tr><td><pre>i2 : C=boundaryCyclicPolytope(3,R)

o2 = 2: x x x  x x x  x x x  x x x  x x x  x x x  x x x  x x x  
         0 1 2  0 2 3  0 3 4  0 1 5  1 2 5  2 3 5  0 4 5  3 4 5

o2 : complex of dim 2 embedded in dim 5 (printing facets)
     equidimensional, simplicial, F-vector {1, 6, 12, 8, 0, 0, 0}, Euler = 1</pre>
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<tr><td><pre>i3 : fc C

o3 = {{{}}, {x , x , x , x , x , x }, {x x , x x , x x , x x , x x , x x ,
              0   1   2   3   4   5     0 1   0 2   1 2   0 3   2 3   0 4 
     ------------------------------------------------------------------------
     x x , x x , x x , x x , x x , x x }, {x x x , x x x , x x x , x x x ,
      3 4   0 5   1 5   2 5   3 5   4 5     0 1 2   0 2 3   0 3 4   0 1 5 
     ------------------------------------------------------------------------
     x x x , x x x , x x x , x x x }, {}, {}, {}}
      1 2 5   2 3 5   0 4 5   3 4 5

o3 : List</pre>
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<tr><td><pre>i4 : fc(C,1)

o4 = {x x , x x , x x , x x , x x , x x , x x , x x , x x , x x , x x , x x }
       0 1   0 2   1 2   0 3   2 3   0 4   3 4   0 5   1 5   2 5   3 5   4 5

o4 : List</pre>
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<div class="waystouse"><h2>Ways to use <tt>fc</tt> :</h2>
<ul><li>fc(Complex)</li>
<li>fc(Complex,ZZ)</li>
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