Fixing left-right convention difference.

sagemath · Jun 10, 2019 · fa0450e · fa0450e
1 parent 25f8655
commit fa0450e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/sage/combinat/dyck_word.py b/src/sage/combinat/dyck_word.py
@@ -2015,7 +2015,7 @@ def to_312_avoiding_permutation(self):
         for j in range(n):
             for i in range(area[j]):
                 pi = pi.apply_simple_reflection(j - i)
-        return ~pi
+        return pi
 
     @combinatorial_map(name='to non-crossing permutation')
     def to_noncrossing_permutation(self):