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diff --git a/The_Spirit_of_C/chapter8.ipynb b/The_Spirit_of_C/chapter8.ipynb
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@@ -1,567 +0,0 @@
-{
- "metadata": {
-  "name": "",
-  "signature": "sha256:db9d52743fdd42516fb59e7618f0fc71d76d4ba3cb21fd098bf4fd004c40683b"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Chapter 8, A Detailed Look at the printf and scanf Functions"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-1 , Page number: 149"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# A print demo\n",
-      "# The conversion specification for numbers.\n",
-      "\n",
-      "print \"Case  1 :%d:\"%123\n",
-      "\n",
-      "print \"Case  2 :%0d:\"%123\n",
-      "\n",
-      "print \"Case  3 :%2d:\"%123\n",
-      "\n",
-      "print \"Case  4 :%8d:\"%123\n",
-      "\n",
-      "print \"Case  5 :%-8d:\"%123\n",
-      "\n",
-      "print \"Case  6 :%8d:\"%-123\n",
-      "\n",
-      "print \"Case  7 :%f:\"%123.456\n",
-      "\n",
-      "print \"Case  8 :%f:\"%123.4567896\n",
-      "\n",
-      "print \"Case  9 :%e:\"%123.456\n",
-      "\n",
-      "print \"Case  10 :%e:\"%1.23456e2\n",
-      "\n",
-      "print \"Case  11 :%e:\"%123.456e+0\n",
-      "\n",
-      "print \"Case  12 :%f:\"%1.23456E+02\n",
-      "\n",
-      "print \"Case  13 :%4.2f:\"%123.456\n",
-      "\n",
-      "print \"Case  14 :%8.2f:\"%123.456\n",
-      "\n",
-      "print \"Case  15 :%.3e:\"%123.456\n",
-      "\n",
-      "print \"Case  16 :%12.3e:\"%123.456\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Case  1 :123:\n",
-        "Case  2 :123:\n",
-        "Case  3 :123:\n",
-        "Case  4 :     123:\n",
-        "Case  5 :123     :\n",
-        "Case  6 :    -123:\n",
-        "Case  7 :123.456000:\n",
-        "Case  8 :123.456790:\n",
-        "Case  9 :1.234560e+02:\n",
-        "Case  10 :1.234560e+02:\n",
-        "Case  11 :1.234560e+02:\n",
-        "Case  12 :123.456000:\n",
-        "Case  13 :123.46:\n",
-        "Case  14 :  123.46:\n",
-        "Case  15 :1.235e+02:\n",
-        "Case  16 :   1.235e+02:\n"
-       ]
-      }
-     ],
-     "prompt_number": 1
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-2 , Page number: 152"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# A print demo:\n",
-      "# Interpretation of values\n",
-      "\n",
-      "# python is dynamically-typed language\n",
-      "# which is why declaration of variables is omitted\n",
-      "n = -123\n",
-      "c = \"V\"\n",
-      "\n",
-      "print \"%d\"%n\n",
-      "print \"%u\"%n\t\t# python correctly interprets the negative(unsigned) integer\n",
-      "\n",
-      "print \"%c\"%c\n",
-      "# print \"%d\"%c  \t# python doesn't support implicit type-casting from integer to character or character to integer\n",
-      "print \"%c\"%86"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "-123\n",
-        "-123\n",
-        "V\n",
-        "V\n"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-3 , Page number: 153"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Printing out the ASCII value of a character\n",
-      "\n",
-      "# There is no do..while loop in python\n",
-      "# Hence, we will be using while loop \n",
-      "\n",
-      "\n",
-      "answer = \"y\"\n",
-      "while answer == \"y\" :\n",
-      "\tprint \"Enter a character:\",\n",
-      "\tin_char = \"a\"\n",
-      "\tprint in_char\n",
-      "\n",
-      "\tprint \"The ASCII value of %c is %d\"%(in_char,ord(in_char)) \t# ord() function returns the ascii(int) value of a character\n",
-      "\n",
-      "\tprint \"\\nAnother? (y/n)\",\n",
-      "\tanswer = \"n\"\t\t\t# To terminate the loop\n",
-      "\tprint answer\n",
-      "\n",
-      "\n"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Enter a character: a\n",
-        "The ASCII value of a is 97\n",
-        "\n",
-        "Another? (y/n) n\n"
-       ]
-      }
-     ],
-     "prompt_number": 3
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-4 , Page number: 154"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Converting a digit to a number by using its ASCII value\n",
-      "\n",
-      "print \"Enter a digit:\",\n",
-      "digit = \"A\"\n",
-      "print digit\n",
-      "\n",
-      "if digit < \"0\" or digit > \"9\" :\n",
-      "\tprint \"That's not a digit\"\n",
-      "else :\n",
-      "\tprint \"The digit you typed is %c\"%digit"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Enter a digit: A\n",
-        "That's not a digit\n"
-       ]
-      }
-     ],
-     "prompt_number": 4
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-5 , Page number: 156"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Converting a letter from lower to upper case or vice-versa\n",
-      "\n",
-      "answer = \"y\"\n",
-      "while answer == \"y\" :\n",
-      "\tprint \"\\n\\n\\nEnter a letter:\",\n",
-      "\tletter = \"A\"\n",
-      "\tprint letter\n",
-      "\n",
-      "\tif letter >= \"A\" and letter < \"Z\" :\t\t# Letter is uppercase\n",
-      "\t\tprint \"Lower case is: %c\"%chr(ord(letter) + (ord(\"a\")-ord(\"A\")))\n",
-      "\telif letter >= \"a\" and letter <= \"z\" :\t# Letter is lowercase\n",
-      "\t\tprint \"Upper case is: %c\"%chr(ord(letter) - (ord(\"a\")-ord(\"A\")))\n",
-      "\telse :\n",
-      "\t\tprint \"That's not a letter\"\n",
-      "\n",
-      "\t# Ask if the user wants to go again\n",
-      "\tprint \"\\nAnother? (y/n)\",\n",
-      "\tanswer = \"n\"\t\t# To terminate the loop\n",
-      "\tprint answer"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "\n",
-        "\n",
-        "Enter a letter: A\n",
-        "Lower case is: a\n",
-        "\n",
-        "Another? (y/n) n\n"
-       ]
-      }
-     ],
-     "prompt_number": 5
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-6 , Page number: 157"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Example of using control characters\n",
-      "\n",
-      "print \"The word apple\\b\\b\\b\\b\\b_____ is underlined.\\n\"\n",
-      "print \"The last word in this sentence is way over\\t\\there.\""
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The word apple\b\b\b\b\b_____ is underlined.\n",
-        "\n",
-        "The last word in this sentence is way over\t\there.\n"
-       ]
-      }
-     ],
-     "prompt_number": 6
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-7 , Page number: 158"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# How to print special characters\n",
-      "\n",
-      "print \"This is how to print a double-quote: \\\"\"\n",
-      "print \"This is how to print a backslash: \\\\\"\n",
-      "# this is how to write an apostrophe character\n",
-      "c = '\\''\n",
-      "print \"c now contains: %c\"%c\n",
-      "print \"This is how to print a percent-sign: %\"\t\t# no escape sequence required for % in python"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "This is how to print a double-quote: \"\n",
-        "This is how to print a backslash: \\\n",
-        "c now contains: '\n",
-        "This is how to print a percent-sign: %\n"
-       ]
-      }
-     ],
-     "prompt_number": 7
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-8 , Page number: 160"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Octal and hexadecimal notation\n",
-      "\n",
-      "a = 27\n",
-      "b = 033\n",
-      "c = 0x1b\n",
-      "\n",
-      "print \"a = %d, b = %d, c = %d\"%(a,b,c)\n",
-      "print \"a = %o, b = %o, c = %o\"%(a,b,c)\n",
-      "print \"a = %x, b = %x, c = %x\"%(a,b,c)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "a = 27, b = 27, c = 27\n",
-        "a = 33, b = 33, c = 33\n",
-        "a = 1b, b = 1b, c = 1b\n"
-       ]
-      }
-     ],
-     "prompt_number": 8
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-9 , Page number: 162"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Illustration of some ways to print a string\n",
-      "\n",
-      "print \"This is simply a control string.\"\n",
-      "\n",
-      "print \"%s\"%(\"The control string just tells how to print this.\")\n",
-      "\n",
-      "print \"%s\"%(\"Newline may be put here, instead!.\\n\"),\n",
-      "\n",
-      "print \"%s %s %s %s %s\"%(\"This\",\"is\",\"valid\",\"in\",\"C.\")\n",
-      "\n",
-      "print \"%s %s also %s %s %s\"%(\"This\",\"is\",\"valid\",\"in\",\"C.\")\n",
-      "\n",
-      "print \"%s %s %s %s %s %s %s\"%(\"This\",\"is\",\"valid\",\"in\",\"C\",\"also.\",\"\\n\"),"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "This is simply a control string.\n",
-        "The control string just tells how to print this.\n",
-        "Newline may be put here, instead!.\n",
-        "This is valid in C.\n",
-        "This is also valid in C.\n",
-        "This is valid in C also. \n"
-       ]
-      }
-     ],
-     "prompt_number": 9
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-10 , Page number: 163"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# %s conversion specification demonstrated\n",
-      "\n",
-      "print \"Case 1 :%s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 2 :%3s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 3 :%12s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 4 :%-12s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 5 :%12.6s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 6 :%12.12s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 7 :%.6s:\"%(\"A string\")\n",
-      "\n",
-      "print \"Case 8 :%-12.6s:\"%(\"A string\")"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Case 1 :A string:\n",
-        "Case 2 :A string:\n",
-        "Case 3 :    A string:\n",
-        "Case 4 :A string    :\n",
-        "Case 5 :      A stri:\n",
-        "Case 6 :    A string:\n",
-        "Case 7 :A stri:\n",
-        "Case 8 :A stri      :\n"
-       ]
-      }
-     ],
-     "prompt_number": 10
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-11 , Page number: 164 "
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Some miscellaneous conversion sppecifications\n",
-      "\n",
-      "a = 123456789L\n",
-      "\n",
-      "print \"%d\"%a\t\t\t# in python both int and long are unified..so %d specifier valid unlike in C\n",
-      "print \"%ld\"%a\n",
-      "print \":%c:\"%(\"V\")\n",
-      "print \":%0c:\"%(\"V\")\n",
-      "print \":%5c:\"%(\"V\")\n",
-      "print \":%-5c:\"%(\"V\")"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "123456789\n",
-        "123456789\n",
-        ":V:\n",
-        ":V:\n",
-        ":    V:\n",
-        ":V    :\n"
-       ]
-      }
-     ],
-     "prompt_number": 11
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Program 8-13 , Page number: 171"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Reading decimal,octal and hex numbers\n",
-      "\n",
-      "print \"Enter a number in decimal:\",\n",
-      "a = 27\n",
-      "print a\n",
-      "print \"You entered %d\"%a\n",
-      "\n",
-      "print \"\\nEnter a number in octal:\",\n",
-      "a = 033\t\t\t# O is added in the front to specify octal value\n",
-      "print a\n",
-      "print \"You entered %o, or %d in decimal\"%(a,a)\n",
-      "\n",
-      "print \"\\nEnter a number in hex:\",\n",
-      "a = 0x1B\n",
-      "print a\n",
-      "print \"You entered %x, or %d in decimal\"%(a,a)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Enter a number in decimal: 27\n",
-        "You entered 27\n",
-        "\n",
-        "Enter a number in octal: 27\n",
-        "You entered 33, or 27 in decimal\n",
-        "\n",
-        "Enter a number in hex: 27\n",
-        "You entered 1b, or 27 in decimal\n"
-       ]
-      }
-     ],
-     "prompt_number": 12
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
\ No newline at end of file