diff --git a/1_Basics.ipynb b/1_Basics.ipynb
index fb45229032eb551abe30e353ab026c4c339bf1bc..0de4bf145272173b7693ffbede076c53f2287d42 100644
--- a/1_Basics.ipynb
+++ b/1_Basics.ipynb
@@ -358,7 +358,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "4*pi*5^3/3"
+    ""
    ]
   },
   {