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  {
   "cell_type": "markdown",
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   "metadata": {},
   "source": [
    "# Étape 2: Variables, affectation et type"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "68735bc5",
   "metadata": {},
   "source": [
    "Trois types de variables"
   ]
  },
  {
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   "source": [
    "`input` donne une chaine de caractère. Comment la transformer en int ou float"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "549afdb8",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "ef52a1e0",
   "metadata": {},
   "source": [
    "Opérations entre les types"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "0fa1ffb7",
   "metadata": {},
   "outputs": [],
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  {
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   "id": "679b714c",
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   "source": [
    "## Exercices\n",
    "\n",
    "Dans les éxercices suivants vous devrez coder un programme qui fait ce qu'il est décrit. Vous pouvez les faire dans l'ordre que vous souhaitez."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "39db342d",
   "metadata": {},
   "source": [
    "### Variation d'une grandeur\n",
    "\n",
    "Écrire un programme qui\n",
    "\n",
    "    demande la valeur initiale\n",
    "    demande le taux d'évolution\n",
    "    affiche la valeur finale"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "142f5abd",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "35b73400",
   "metadata": {},
   "source": [
    "## Taux de variation\n",
    "\n",
    "Écrire un programme qui\n",
    "\n",
    "    demande la valeur initiale\n",
    "    demande la valeur finale\n",
    "    affiche le taux d'évolution\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "e7fb7e8e",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "16e4cab9",
   "metadata": {},
   "source": [
    "### Coordonnées du milieu\n",
    "\n",
    "Écrire un programme qui\n",
    "\n",
    "    demande l'abscisse du point A\n",
    "    demande l'ordonnée du point A\n",
    "    demande l'abscisse du point B\n",
    "    demande l'ordonnée du point B\n",
    "    stock l'abscisse du milieu du segment [AB]\n",
    "    stock l'ordonnée du milieu du segment [AB]\n",
    "    affiche les coordonnées du milieu du segment [AB]\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "e3766249",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "00c3137a",
   "metadata": {},
   "source": [
    "### Distance entre deux points\n",
    "\n",
    "Écrire un programme qui\n",
    "\n",
    "    demande l'abscisse du point A\n",
    "    demande l'ordonnée du point A\n",
    "    demande l'abscisse du point B\n",
    "    demande l'ordonnée du point B\n",
    "    affiche la distance AB\n",
    "    \n",
    "Pour calculer la racine carré, vous aurez besoin d'importer la fonction `sqrt`. Pour cela, votre programme devra commencer par la ligne suivante\n",
    "\n",
    "    from math import sqrt"
   ]
  }
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