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diff --git a/The_Spirit_of_C/chapter8.ipynb b/The_Spirit_of_C/chapter8.ipynb new file mode 100755 index 00000000..baae6f9a --- /dev/null +++ b/The_Spirit_of_C/chapter8.ipynb @@ -0,0 +1,567 @@ +{ + "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": {} + } + ] +}
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