X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/98936866ae400d45b7b74f7ba0d04c66ace0424f..148dae3a90146e4b1c5a32d1803a0a2ff66f9deb:/doc/linexpr.rst

diff --git a/doc/linexpr.rst b/doc/linexpr.rst
index 4101252..b5d8069 100644
--- a/doc/linexpr.rst
+++ b/doc/linexpr.rst
@@ -1,7 +1,10 @@
 Linear Expression Module
 ========================
 
-This class implements linear expressions.
+This class implements linear expressions. A linear expression is….
+
+.. py:class:: Expression
+
 
     .. py:method:: coefficient(self, symbol)
         
@@ -11,21 +14,21 @@ This class implements linear expressions.
         
         Return a list of the coefficients of an expression
         
-    .. py:method:: constant(self)
+    .. attribute:: constant
     
         Return the constant value of an expression.
         
-    .. py:method:: symbols(self)
+    .. attribute:: symbols
     
         Return a list of symbols in an expression.                            
     
-    .. py:method:: dimension(self)
+    .. attribute:: dimension
     
-        Return the number of vriables in an expression.
+        Return the number of variables in an expression.
         
     .. py:method:: __sub__(self, other)
     
-        Return the difference between two expressions.
+        Return the difference between *self* and *other*.
                
     .. py:method:: subs(self, symbol, expression=None)
     
@@ -38,6 +41,9 @@ This class implements linear expressions.
     .. py:method:: tosympy(self)
     
         Return an expression as a sympy object.    
+
+.. py:class:: Symbol(Expression)
+        
           
 .. py:class:: Dummy(Symbol)