diff --git a/QUESTION13.ipynb b/QUESTION13.ipynb
index 42b8def..0e71a13 100644
--- a/QUESTION13.ipynb
+++ b/QUESTION13.ipynb
@@ -106,7 +106,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 67,
+   "execution_count": 68,
    "id": "bfde5aa5-407f-400f-9347-3e1a7a9a47e4",
    "metadata": {
     "tags": []
@@ -134,10 +134,10 @@
     {
      "data": {
       "text/plain": [
-       "Text(0.5, 1.0, 'Les 100 valeurs propres')"
+       "[]"
       ]
      },
-     "execution_count": 67,
+     "execution_count": 68,
      "metadata": {},
      "output_type": "execute_result"
     },
@@ -163,7 +163,9 @@
     "\n",
     "plt.scatter(n, D, s=2)\n",
     "\n",
-    "plt.title(\"Les 100 valeurs propres\")"
+    "plt.title(\"Les 100 valeurs propres\")\n",
+    "\n",
+    "plt.plot()"
    ]
   },
   {