[ipynb toggle code demo] #jupyter #ipynb

hide-code-demo.ipynb

{
 "cells": [
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# ipynb toggle code demo\n",
    "\n",
    "Toggle code cells by clicking the link below."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "<script>\n",
       "code_show = true;\n",
       "function code_toggle() {\n",
       "  if (code_show) {\n",
       "    $('div.input').hide();\n",
       "  } else {\n",
       "    $('div.input').show();\n",
       "  } code_show = !code_show\n",
       "} $(document).ready(code_toggle);\n",
       "</script>\n",
       "<font size='2'><a href='javascript:code_toggle()'>Toggle code.</a></font>\n",
       "<hr />\n"
      ],
      "text/plain": [
       "<IPython.core.display.HTML object>"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from IPython.display import HTML\n",
    "\n",
    "HTML(\"\"\"\n",
    "<script>\n",
    "code_show = true;\n",
    "function code_toggle() {\n",
    "  if (code_show) {\n",
    "    $('div.input').hide();\n",
    "  } else {\n",
    "    $('div.input').show();\n",
    "  } code_show = !code_show\n",
    "} $(document).ready(code_toggle);\n",
    "</script>\n",
    "<font size='2'><a href='javascript:code_toggle()'>Toggle code.</a></font>\n",
    "<hr />\n",
    "\"\"\")"
   ]
  },
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The first 50 Fibonacci numbers:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0 0\n",
      "1 1\n",
      "2 1\n",
      "3 2\n",
      "4 3\n",
      "5 5\n",
      "6 8\n",
      "7 13\n",
      "8 21\n",
      "9 34\n",
      "10 55\n",
      "11 89\n",
      "12 144\n",
      "13 233\n",
      "14 377\n",
      "15 610\n",
      "16 987\n",
      "17 1597\n",
      "18 2584\n",
      "19 4181\n",
      "20 6765\n",
      "21 10946\n",
      "22 17711\n",
      "23 28657\n",
      "24 46368\n",
      "25 75025\n",
      "26 121393\n",
      "27 196418\n",
      "28 317811\n",
      "29 514229\n",
      "30 832040\n",
      "31 1346269\n",
      "32 2178309\n",
      "33 3524578\n",
      "34 5702887\n",
      "35 9227465\n",
      "36 14930352\n",
      "37 24157817\n",
      "38 39088169\n",
      "39 63245986\n",
      "40 102334155\n",
      "41 165580141\n",
      "42 267914296\n",
      "43 433494437\n",
      "44 701408733\n",
      "45 1134903170\n",
      "46 1836311903\n",
      "47 2971215073\n",
      "48 4807526976\n",
      "49 7778742049\n"
     ]
    }
   ],
   "source": [
    "from functools import lru_cache\n",
    "\n",
    "\n",
    "@lru_cache\n",
    "def fib(n: int) -> int:\n",
    "    \"\"\"The nth Fibonacci number\"\"\"\n",
    "    if n == 0:\n",
    "        return 0\n",
    "    elif n == 1:\n",
    "        return 1\n",
    "    else:\n",
    "        return fib(n - 1) + fib(n - 2)\n",
    "\n",
    "for n in range(50):\n",
    "    print(n, fib(n))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.10.6"
  },
  "orig_nbformat": 4
 },
 "nbformat": 4,
 "nbformat_minor": 2
}