diff --git a/Notebooks/Chap03/3_3_Shallow_Network_Regions.ipynb b/Notebooks/Chap03/3_3_Shallow_Network_Regions.ipynb
index 4899035c..ff4aadd7 100644
--- a/Notebooks/Chap03/3_3_Shallow_Network_Regions.ipynb
+++ b/Notebooks/Chap03/3_3_Shallow_Network_Regions.ipynb
@@ -4,7 +4,7 @@
   "metadata": {
     "colab": {
       "provenance": [],
-      "authorship_tag": "ABX9TyPz1VAUhHSOFy2HLE0UEBLV",
+      "authorship_tag": "ABX9TyPRYYQqIr5qXUiwKNtDOVqS",
       "include_colab_link": true
     },
     "kernelspec": {
@@ -142,7 +142,7 @@
     {
       "cell_type": "code",
       "source": [
-        "# Let's do the calculation properly when D<Di\n",
+        "# Let's do the calculation properly when D<Di (see figure 3.10 from the book)\n",
         "D = 8; Di = 10\n",
         "N = np.power(2,D)\n",
         "# We can equivalently do this by calling number_regions with the D twice\n",