X-Git-Url: https://scm.cri.ensmp.fr/git/linpy.git/blobdiff_plain/d9ce6feb2d36e40e83326744f1d4ff3890d1874f..51e97eade63b2f4c7b500feb503436cc4a886e59:/pypol/linexprs.py

diff --git a/pypol/linexprs.py b/pypol/linexprs.py
index 07d4005..3dd03ef 100644
--- a/pypol/linexprs.py
+++ b/pypol/linexprs.py
@@ -1,3 +1,20 @@
+"""
+    This file is part of Linpy.
+
+    Linpy is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Linpy is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Linpy.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
 import ast
 import functools
 import numbers
@@ -460,3 +477,5 @@ class Rational(Expression, Fraction):
             return Rational(expr)
         else:
             raise TypeError('expr must be a sympy.Rational instance')
+            
+# Copyright 2014 MINES ParisTech