{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "# Floating point vs Program Logic"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "What will the following code snippet do?"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 1,
      "metadata": {
        "collapsed": false
      },
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": [
            "0.1\n",
            "0.2\n",
            "0.30000000000000004\n",
            "0.4\n",
            "0.5\n",
            "0.6\n",
            "0.7\n",
            "0.7999999999999999\n",
            "0.8999999999999999\n",
            "0.9999999999999999\n",
            "1.0999999999999999\n",
            "1.2\n",
            "1.3\n",
            "1.4000000000000001\n",
            "1.5000000000000002\n",
            "1.6000000000000003\n",
            "1.7000000000000004\n",
            "1.8000000000000005\n",
            "1.9000000000000006\n",
            "2.0000000000000004\n",
            "2.1000000000000005\n",
            "2.2000000000000006\n",
            "2.3000000000000007\n",
            "2.400000000000001\n",
            "2.500000000000001\n",
            "2.600000000000001\n",
            "2.700000000000001\n",
            "2.800000000000001\n",
            "2.9000000000000012\n",
            "3.0000000000000013\n",
            "3.1000000000000014\n",
            "3.2000000000000015\n",
            "3.3000000000000016\n"
          ]
        },
        {
          "ename": "KeyboardInterrupt",
          "evalue": "",
          "output_type": "error",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[0;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-1-158db59ac64a>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      8\u001b[0m     \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mrepr\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mx\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      9\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 10\u001b[0;31m     \u001b[0msleep\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m0.1\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mKeyboardInterrupt\u001b[0m: "
          ]
        }
      ],
      "source": [
        "from time import sleep\n",
        "\n",
        "x = 0.0\n",
        "\n",
        "while x != 1.0:\n",
        "    x += 0.1\n",
        "    print(repr(x))\n",
        "    \n",
        "    sleep(0.1)"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "How do you prevent that from happening?"
      ]
    }
  ],
  "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
}