diff --git a/representation_construits/chapitre_1/td/correction.ipynb b/representation_construits/chapitre_1/td/correction.ipynb
index 1a72bd5..2c03423 100644
--- a/representation_construits/chapitre_1/td/correction.ipynb
+++ b/representation_construits/chapitre_1/td/correction.ipynb
@@ -275,7 +275,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -496,7 +496,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -518,14 +518,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [],
-   "source": "# Question 2\ndef colonne(matrice, indice):\n    '''\n    Obtient une liste comportant l'ensemble des valeurs de la colonne indice de la matrice\n    :param matrice: (list) une matrice\n    :param indice: (int) un entier\n    :return: (list) une liste de valeurs de la colonne indice\n    :doctest:\n        >>> colonne([[1, 2],[3, 4]], 0)\n        [1, 3]\n        >>> colonne([[1, 2],[3, 4]], 1)\n        [2, 4]\n    '''\n    return [matrice[i][indice] for i in range(len(matrice))]"
+   "source": [
+    "# Question 2\n",
+    "def colonne(matrice, indice):\n",
+    "    '''\n",
+    "    Obtient une liste comportant l'ensemble des valeurs de la colonne indice de la matrice\n",
+    "    :param matrice: (list) une matrice\n",
+    "    :param indice: (int) un entier\n",
+    "    :return: (list) une liste de valeurs de la colonne indice\n",
+    "    :doctest:\n",
+    "        >>> colonne([[1, 2],[3, 4]], 0)\n",
+    "        [1, 3]\n",
+    "        >>> colonne([[1, 2],[3, 4]], 1)\n",
+    "        [2, 4]\n",
+    "    '''\n",
+    "    return [matrice[i][indice] for i in range(len(matrice))]"
+   ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -546,7 +561,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -597,10 +612,59 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
-   "outputs": [],
-   "source": "def est_magique(matrice):\n    '''\n    Indique si le carré est magique ou non\n    :param matrice: (list) un carré d'entiers\n    :return: (bool) True si les sommes de chaque ligne, colonne et diagonale sont égales.\n    :doctest:\n        >>> est_magique([[2, 7, 6], [9, 5, 1], [4, 3, 8]])\n        True\n        >>> est_magique([[2, 7, 6], [9, 1, 5], [4, 3, 8]])\n        False\n        >>> est_magique([[16, 3, 2, 13], [5, 10, 11, 8], [9, 6, 7, 12], [4, 15, 14, 1]])\n        True\n    '''\n    constante = somme(ligne(matrice, 0))\n    \n    # Vérification des lignes\n    for i in range(1, len(matrice)):\n        if somme(ligne(matrice, i)) != constante:\n            return False\n    \n    # Vérification des colonnes\n    for i in range(len(matrice[0])):\n        if somme(colonne(matrice, i)) != constante:\n            return False\n    \n    # Vérification des diagonales\n    if somme(diagonale_nord_ouest(matrice)) != constante:\n        return False\n    if somme(diagonale_nord_est(matrice)) != constante:\n        return False\n    \n    return True"
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 11,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "def est_magique(matrice):\n",
+    "    '''\n",
+    "    Indique si le carré est magique ou non\n",
+    "    :param matrice: (list) un carré d'entiers\n",
+    "    :return: (bool) True si les sommes de chaque ligne, colonne et diagonale sont égales.\n",
+    "    :doctest:\n",
+    "        >>> est_magique([[2, 7, 6], [9, 5, 1], [4, 3, 8]])\n",
+    "        True\n",
+    "        >>> est_magique([[2, 7, 6], [9, 1, 5], [4, 3, 8]])\n",
+    "        False\n",
+    "        >>> est_magique([[16, 3, 2, 13], [5, 10, 11, 8], [9, 6, 7, 12], [4, 15, 14, 1]])\n",
+    "        True\n",
+    "    '''\n",
+    "    constante = somme(ligne(matrice, 0))\n",
+    "    \n",
+    "    # Vérification des lignes\n",
+    "    for i in range(1, len(matrice)):\n",
+    "        if somme(ligne(matrice, i)) != constante:\n",
+    "            return False\n",
+    "    \n",
+    "    # Vérification des colonnes\n",
+    "    for i in range(len(matrice[0])):\n",
+    "        if somme(colonne(matrice, i)) != constante:\n",
+    "            return False\n",
+    "    \n",
+    "    # Vérification des diagonales\n",
+    "    if somme(diagonale_nord_ouest(matrice)) != constante:\n",
+    "        return False\n",
+    "    if somme(diagonale_nord_est(matrice)) != constante:\n",
+    "        return False\n",
+    "    \n",
+    "    return True\n",
+    "    \n",
+    "\n",
+    "matrice = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12], [13, 14, 15, 16]]\n",
+    "matrice_2 = [[16,3,2,13], [5,10,11,8], [9,6,7,12], [4,15,14,1]]\n",
+    "est_magique(matrice_2)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -896,9 +960,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.13.11"
   }
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
\ No newline at end of file
+}