diff --git a/double_pendule.py b/examples/double_pendule.py
similarity index 95%
rename from double_pendule.py
rename to examples/double_pendule.py
index 5c9776d..dec7ebc 100644
--- a/double_pendule.py
+++ b/examples/double_pendule.py
@@ -1,3 +1,7 @@
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 import legrandchien as lgc
 import matplotlib.pyplot as plt
 import matplotlib.animation as animation
diff --git a/double_pendule_a_ressort.py b/examples/double_pendule_a_ressort.py
similarity index 95%
rename from double_pendule_a_ressort.py
rename to examples/double_pendule_a_ressort.py
index a2a024d..2dc2c7c 100644
--- a/double_pendule_a_ressort.py
+++ b/examples/double_pendule_a_ressort.py
@@ -1,3 +1,7 @@
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 import legrandchien as lgc
 import matplotlib.pyplot as plt
 import matplotlib.animation as animation
diff --git a/pendule_a_ressort.py b/examples/pendule_a_ressort.py
similarity index 94%
rename from pendule_a_ressort.py
rename to examples/pendule_a_ressort.py
index 6eba8b7..04fa9d3 100644
--- a/pendule_a_ressort.py
+++ b/examples/pendule_a_ressort.py
@@ -1,3 +1,7 @@
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 import legrandchien as lgc
 import matplotlib.pyplot as plt
 import matplotlib.animation as animation
diff --git a/pendule_simple.py b/examples/pendule_simple.py
similarity index 93%
rename from pendule_simple.py
rename to examples/pendule_simple.py
index 59a333a..a669249 100644
--- a/pendule_simple.py
+++ b/examples/pendule_simple.py
@@ -1,3 +1,7 @@
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 import legrandchien as lgc
 import matplotlib.pyplot as plt
 import matplotlib.animation as animation
diff --git a/legrandchien.py b/legrandchien.py
index d254411..9992a05 100644
--- a/legrandchien.py
+++ b/legrandchien.py
@@ -555,7 +555,7 @@ class Equation:
             dico[var.name] = 0.
 
         # print([var.name for var in unknown])
-        print(equations[0])
+        # print(equations[0])
         assert(len(unknown) == len(equations))
         n = len(unknown)