square of integers.ipynb

square-of-integers.ipynb

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "name": "square of integers.ipynb",
      "provenance": [],
      "collapsed_sections": [],
      "authorship_tag": "ABX9TyMqPTa1Cyv6ksHsCqWoUkUX",
      "include_colab_link": true
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    },
    "language_info": {
      "name": "python"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/gist/norweeg/68933e4db198b722527ac49775c32f1c/square-of-integers.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "_gbEjYPVJxaW"
      },
      "source": [
        "from ipywidgets import interact, BoundedIntText\n",
        "from IPython.display import Pretty\n",
        "from itertools import chain, repeat, islice\n",
        "\n",
        "@interact(n=BoundedIntText(description=\"n = \", min=1, value=5))\n",
        "def number_square(n):\n",
        "  rows = (\n",
        "      lambda: map(\n",
        "          lambda i: chain(\n",
        "               range(1,i), \n",
        "               repeat(i, ((2*n)-1)-(2*(i-1))), \n",
        "               reversed(range(1, i))\n",
        "               ), \n",
        "               range(1, n+1)\n",
        "               )\n",
        "  )\n",
        "  \n",
        "  as_str = lambda i: \" \".join(map(lambda s: str(s).ljust(len(str(n))), i))\n",
        "  mirrored = lambda i: islice(reversed(list(i)), 1, None)\n",
        "  square = chain(rows(), mirrored(rows()))\n",
        "\n",
        "  return Pretty(\"\\n\".join(map(as_str, square)))"
      ],
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "rX7wKDoq316L"
      },
      "source": [
        ""
      ],
      "execution_count": null,
      "outputs": []
    }
  ]
}