From 7f79e23cd3b8f6768fa84a5663c3ab31ee47bf95 Mon Sep 17 00:00:00 2001
From: Lafrite <lafrite@poneyworld.net>
Date: Tue, 7 Apr 2015 08:55:05 +0200
Subject: [PATCH] lastbug with facto?

---
 pymath/abstract_polynom.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pymath/abstract_polynom.py b/pymath/abstract_polynom.py
index f434983..9eb8894 100644
--- a/pymath/abstract_polynom.py
+++ b/pymath/abstract_polynom.py
@@ -65,6 +65,9 @@ class AbstractPolynom(Explicable):
         except IndexError:
             pass
 
+        if coefs == []:
+            coefs = [0]
+
         self.feed_coef(coefs)
         self._letter = letter
         self.name = name