doc/linexpr.rst

   1 Linear Expression Module
   2 ========================
   3
   4 This class implements linear expressions. A linear expression is….
   5
   6 .. py:class:: Expression
   7
   8
   9     .. py:method:: coefficient(self, symbol)
  10
  11         Return the coefficient value of the given symbol.
  12
  13     .. py:method:: coefficients(self)
  14
  15         Return a list of the coefficients of an expression
  16
  17     .. attribute:: constant
  18
  19         Return the constant value of an expression.
  20
  21     .. attribute:: symbols
  22
  23         Return a list of symbols in an expression.
  24
  25     .. attribute:: dimension
  26
  27         Return the number of variables in an expression.
  28
  29     .. py:method:: __sub__(self, other)
  30
  31         Return the difference between *self* and *other*.
  32
  33     .. py:method:: subs(self, symbol, expression=None)
  34
  35         Subsitute the given value into an expression and return the resulting expression.
  36
  37     .. py:method:: fromsympy(self)
  38
  39         Convert sympy object to an expression.
  40
  41     .. py:method:: tosympy(self)
  42
  43         Return an expression as a sympy object.
  44
  45 .. py:class:: Symbol(Expression)
  46
  47
  48 .. py:class:: Dummy(Symbol)
  49
  50 This class returns a dummy symbol to ensure that each no variables are repeated in an expression