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[linpy.git] / doc / polyhedra.rst
1 Polyhedra Module
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4 .. py:class:: Polyhedron
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6 Polyhedron class allows users to build and inspect polyherons. The following methods provide the properties of a polyhedron.
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8 .. py:method:: equalities(self)
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10 Return a list of the equalities in a polyhedron.
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12 .. py:method:: inequalities(self)
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14 Return a list of the inequalities in a polyhedron.
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16 .. py:method:: constraints(self)
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18 Return ta list of the constraints of a polyhedron.
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20 The following unary operations can be used to inspect a polyhedron.
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22 .. py:method:: disjoint(self)
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24 Returns a polyhedron as a disjoint.
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26 .. py:method:: isuniverse(self)
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28 Return ``True`` if a polyhedron is the Universe set.
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30 .. py:method:: subs(self, symbol, expression=None)
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32 Subsitutes an expression into a polyhedron and returns the result.
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34 To create a polyhedron, the user must use the folloing functions to define the equalities and inequalities which are the contraints of a polyhedron.
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36 .. py:function:: Eq(left, right)
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38 Create a constraint by setting *left* equal to *right*.
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40 .. py:function:: Ne(left, right)
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42 Create a constraint by setting *left* not equal to *right*.
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44 .. py:function:: Lt(left, right)
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46 Create a constraint by setting *left* less than *right*.
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48 .. py:function:: Le(left, right)
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50 Create a constraint by setting *left* less than or equal to *right*.
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52 .. py:function:: Gt(left, right)
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54 Create a constraint by setting *left* greater than *right*.
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56 .. py:function:: Ge(left, right)
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58 Create a constraint by setting *left* greater than or equal to *right*.