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Macaulay2-1.3.1-8.fc15.i686.rpm

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<head><title>Cone + Polyhedron -- computes the Minkowski sum of a cone and a polyhedron</title>
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<div><h1>Cone + Polyhedron -- computes the Minkowski sum of a cone and 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>  Q = C + P</tt></div>
</dd></dl>
</div>
</li>
<li><span>Operator: <a href="../../Macaulay2Doc/html/__pl.html" title="a unary or binary operator, usually used for addition">+</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>C</tt>, <span>a <a href="___Cone.html">convex rational cone</a></span></span></li>
<li><span><tt>P</tt>, <span>a <a href="___Polyhedron.html">convex polyhedron</a></span></span></li>
</ul>
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</li>
<li><div class="single">Outputs:<ul><li><span><tt>Q</tt>, <span>a <a href="___Polyhedron.html">convex polyhedron</a></span></span></li>
</ul>
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</li>
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<div class="single"><h2>Description</h2>
<div><p/>
Computes the Minkowski sum of <tt>C</tt> and <tt>P</tt>.This is the polyhedron 
 <tt>C + P = {c + p | c in C, p in P}</tt>. Note that <tt>C</tt> and <tt>P</tt> have 
 to lie in the same ambient space.<p/>
See also <a href="_minkowski__Sum.html" title=" computes the Minkowski sum of two convex objects">minkowskiSum</a>.<table class="examples"><tr><td><pre>i1 : C = posHull matrix {{1},{2},{0}}

o1 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of the cone => 1
      number of facets => 1
      number of rays => 1

o1 : Cone</pre>
</td></tr>
<tr><td><pre>i2 : P = hypercube 3

o2 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 3
      number of facets => 6
      number of rays => 0
      number of vertices => 8

o2 : Polyhedron</pre>
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<tr><td><pre>i3 : Q = C + P

o3 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 3
      number of facets => 6
      number of rays => 1
      number of vertices => 6

o3 : Polyhedron</pre>
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<tr><td><pre>i4 : (vertices Q,rays Q)

o4 = (| -1 1  -1 -1 1  -1 |, | 1 |)
      | -1 -1 1  -1 -1 1  |  | 2 |
      | -1 -1 -1 1  1  1  |  | 0 |

o4 : Sequence</pre>
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