diff --git a/pymath/calculus/abstract_polynom.py b/pymath/calculus/abstract_polynom.py
index 0859ff1..4ca2c3a 100644
--- a/pymath/calculus/abstract_polynom.py
+++ b/pymath/calculus/abstract_polynom.py
@@ -406,6 +406,11 @@ class AbstractPolynom(Explicable):
         7
         >>> c.steps
         [< Step [2, 2, *, 3, +]>, < Step [4, 3, +]>, < Step [4, 3, +]>, < Step [7]>]
+        >>> c = AbstractPolynom.smpl_coef_list([0, 2, 0])
+        >>> c
+        2
+        >>> c.steps
+        [< Step [2]>]
         """
         # Simplify each element before adding them
         smpl_elem = []