{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "c6866476548935c6",
   "metadata": {},
   "source": [
    "# Quantum ESPRESSO (QE)\n",
    "\n",
    "$$\n",
    "\\begin{align}\n",
    "(a + b)^2  &=  (a + b)(a + b) \\\\\n",
    "           &=  a^2 + 2ab + b^2\n",
    "\\end{align}\n",
    "$$"
   ]
  },
  {
   "cell_type": "code",
   "id": "e5300cb16f99c45f",
   "metadata": {
    "collapsed": true
   },
   "source": [
    "import string\n",
    "\n",
    "import numpy as np\n",
    "import pandas as pd\n",
    "\n",
    "\n",
    "rng = np.random.default_rng(seed=15485863)\n",
    "data = rng.standard_normal((100, 26))\n",
    "df = pd.DataFrame(data, columns=list(string.ascii_lowercase))\n",
    "df"
   ],
   "outputs": [],
   "execution_count": null
  }
 ],
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   "pygments_lexer": "ipython2",
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