3771d5f21d0b02d4982f155933ab78a4530b2303
[linpy.git] / doc / linexpr.rst~
1 Linear Expression Module
2 ========================
3
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5 This class implements linear expressions.
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7 .. py:method:: coefficient(self, symbol)
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9 Return the coefficient value of the given symbol.
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11 .. py:method:: coefficients(self)
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13 Return a list of the coefficients of an expression
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15 .. py:method:: constant(self)
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17 Return the constant value of an expression.
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19 .. py:method:: symbols(self)
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21 Return a list of symbols in an expression.
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23 .. py:method:: dimension(self)
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25 Return the number of vriables in an expression.
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27 .. py:method:: __sub__(self, other)
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29 Return the difference between two expressions.
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31 .. py:method:: subs(self, symbol, expression=None)
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33 Subsitute the given value into an expression and return the resulting expression.
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35 .. py:method:: fromsympy(self)
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37 Convert sympy object to an expression.
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39 .. py:method:: tosympy(self)
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41 Return an expression as a sympy object.
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43 .. py:class:: Dummy(Symbol)
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45 This class returns a dummy symbol to ensure that each no variables are repeated in an expression