diff --git a/equation-numbering.ipynb b/equation-numbering.ipynb
index 33b5d8d..2326a32 100644
--- a/equation-numbering.ipynb
+++ b/equation-numbering.ipynb
@@ -34,12 +34,12 @@
         }
       ],
       "source": [
-        "def integral_x2(a=0.0, b=1.0):\\n",
-        "    return (b ** 3 - a ** 3) / 3.0\\n",
-        "\\n",
-        "values = [x * x + 1 for x in [0.0, 0.25, 0.5, 0.75, 1.0]]\\n",
-        "print(f'integral x^2 on [0, 1] = {integral_x2():.6f}')\\n",
-        "print(f'sample values: {values}')\\n"
+        "def integral_x2(a=0.0, b=1.0):\n",
+        "    return (b ** 3 - a ** 3) / 3.0\n",
+        "\n",
+        "values = [x * x + 1 for x in [0.0, 0.25, 0.5, 0.75, 1.0]]\n",
+        "print(f'integral x^2 on [0, 1] = {integral_x2():.6f}')\n",
+        "print(f'sample values: {values}')\n"
       ]
     }
   ],