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   "source": [
    "<h1><span style=\"color:blue;\"><center>Programmation Python de listes en compréhension</center></span></h1>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Lorsque l'on crée une liste en compréhension, on n'ajoute pas les éléments à la liste à l'aide d'une énumération mais en les caractérisant par des propriétés mathématiques ou logiques."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "L=[i**2 for i in range(0,21)] # cette liste des premiers carrés est constituée en compréhension"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "L=[] \n",
    "for i in range(0,21):\n",
    "    L.append(i**2) # Cette même liste est construite par ajout d'éléments"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "T=[i**2 for i in range(0,21) if i%2==0] # Cette liste ne contient les carrés que des nombres pairs\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "collapsed": true
   },
   "source": [
    "<h2>Exercice 1 : </h2>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Un article coûte 50 euros en 2020. Il augmente de 2% tous les ans pendant 10 ans.\n",
    "\n",
    "1) Construire une liste en python qui contient les prix de cet article chaque année entre 2020 et 2030."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "2) Faire calculer la différence de prix entre 2020 et 2030."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h2>Exercice 2 :</h2>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Les cinq variables ci-contre sont des listes définies en compréhension.\n",
    "Pour chacune d'elle, donner ses éléments :"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "L1=[i for i in range(20)]\n",
    "L2=[10*i for i in range(3,8,2)]\n",
    "L3=[i//2 for i in range(51)]\n",
    "L4=[i+j for i in range(2) for j in range(3)]\n",
    "L5=[elet for elet in L2 if elet//10==5]"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h2>Exercice 3 :</h2>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Compléter la liste en compréhension suivante représentant un échantillon de 500 lancers d'un dé à six faces numérotées de 1 à 6."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "import random\n",
    "L=[random.randint(1,6) for i in range(0,500)]"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "collapsed": true
   },
   "source": [
    "<h2>Exercice 4 : </h2>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "1) Créer les listes suivantes en compréhension :"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "H=[20,21,22,23,24,25,26,29,39,30,31,32,33,34,35,36,37,38,39,40]\n",
    "M=[60,63,66,69,72,75,78,81,84,87,90]\n",
    "N=[1,9,25,49,81,121,169]\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "2) Créer les listes en compréhension suivantes :"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "a) la liste des nombres entiers naturels impairs inférieurs à 1000."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "b) la liste des nombres entiers relatifs multiples de 5 et compris entre -100 et 100 :"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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