Update Non ambiguous tree documentation

sagemath · Jul 1, 2016 · b7f9e63 · b7f9e63
1 parent 6676817
commit b7f9e63
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Showing 2 changed files with 10 additions and 5 deletions.
diff --git a/src/sage/combinat/all.py b/src/sage/combinat/all.py
@@ -135,7 +135,7 @@
 from .parallelogram_polyomino import (
     ParallelogramPolyomino, ParallelogramPolyominoes
 )
-from non_ambiguous_tree import NonAmbiguousTrees, NonAmbiguousTree
+from .non_ambiguous_tree import NonAmbiguousTrees, NonAmbiguousTree
 
 from .root_system.all import *
 from .sf.all import *

diff --git a/src/sage/combinat/non_ambiguous_tree.py b/src/sage/combinat/non_ambiguous_tree.py
@@ -1276,10 +1276,15 @@ def __call__(self, size=None, tree=None, policy=None):
             return NonAmbiguousTrees_all(policy)
         raise ValueError, "Invalide argument for non-ambiguous tee Factory."
 
-    def add_constraints(self, cons, (args, opts)):
-        r'''
-        '''
-        return cons+args
+    def add_constraints(self, cons, args_opts):
+        r"""
+        This function permit to add some enumeration constraint to the 
+        factory. The factory make a family using the given constraints.
+
+        :meth:`SetFactory.add_constraints<.set_factories.SetFactory.add_constraints>`.
+        """
+        args, opts = args_opts
+        return cons + args
 
     @lazy_attribute
     def _default_policy(self):