diff --git a/Schenk_Brandenberger_S3_Aufg4.py b/Schenk_Brandenberger_S3_Aufg4.py
index 6fcb542..2da0a3a 100644
--- a/Schenk_Brandenberger_S3_Aufg4.py
+++ b/Schenk_Brandenberger_S3_Aufg4.py
@@ -9,8 +9,10 @@ def h1(x):
     except:
         return
 
-
 def h1_diff(x):
+    return (100 * x - 100) / math.sqrt(100 * math.pow(x, 2) - 200 * x + 99)
+
+def h2_diff(x):
     return (100 * x - 100) / math.sqrt((10*x-11)*(10*x-9))
 
 def h2(x):