{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0.8"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def f(x,y):\n",
    "    if y != 0:\n",
    "        return x/y\n",
    "    else:\n",
    "        return x/(y+1e-9)\n",
    "\n",
    "f(4,5)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "$$\\int_0^\\infty e^{-x^2} dx = \\frac{\\sqrt{\\pi}}{2}$$"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Partie 1: Creation of the list"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**A bullet list:**\n",
    "\n",
    "- the first element:\n",
    "    - water\n",
    "    - LNAPL\n",
    "    \n",
    "- the second element:\n",
    "    - SER\n",
    "    - MSS\n",
    "\n",
    "**A numbered list:**\n",
    "\n",
    "1. the first element;\n",
    "2. the second element"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# A code block\n",
    "\n",
    "print(\"Hello, world!\")"
   ]
  }
 ],
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