diff --git a/src/serie_3.py b/src/serie_3.py
index 439db62..948e8e5 100644
--- a/src/serie_3.py
+++ b/src/serie_3.py
@@ -27,6 +27,9 @@ for punkt in punkte:
     fig = 1
 
     # Berechnung
-
+    n = np.size(y_data)
+    TAB = np.block([[y_data], [np.zeros((n-1, n))]])
+    c_data = np.zeros(n)
+    c_data[0] = y_data[0]
 
 print("----------------------------------------------------------------")