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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:03f3f522026b7ff6e1acac7746805bcac18faba022541a5d8a73470a897fdf7a"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 4, Some More Data Types"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Prgoram 4-1 , Page number: 47"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# An illustration of the use of floating point numbers\n",
+      "\n",
+      "# There is no loss of precision in python\n",
+      "a = 246.8\n",
+      "b = 135.79\n",
+      "\n",
+      "answer = a + b\n",
+      "print \"%f + %f = %f\"%(a,b,answer)\n",
+      "\n",
+      "answer = a - b\n",
+      "print \"%f - %f = %f\"%(a,b,answer)\n",
+      "\n",
+      "answer = a * b\n",
+      "print \"%f * %f = %f\"%(a,b,answer)\n",
+      "\n",
+      "answer = a / b\n",
+      "print \"%f / %f = %f\"%(a,b,answer)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "246.800000 + 135.790000 = 382.590000\n",
+        "246.800000 - 135.790000 = 111.010000\n",
+        "246.800000 * 135.790000 = 33512.972000\n",
+        "246.800000 / 135.790000 = 1.817512\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 4-2 , Page number: 49"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Illustration of mixed mode expressions\n",
+      "\n",
+      "a = 2\n",
+      "b = 12.34\n",
+      "\n",
+      "result = a * b\n",
+      "print \"%d * %f = %f\"%(a,b,result)\n",
+      "\n",
+      "print \"%f in scientific notation is %e\"%(result,result)\n",
+      "\n",
+      "answer = a * b\n",
+      "print \"%d * %f = %d\"%(a,b,answer)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "2 * 12.340000 = 24.680000\n",
+        "24.680000 in scientific notation is 2.468000e+01\n",
+        "2 * 12.340000 = 24\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 4-3 , Page number: 52"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "ltr_1 = \"C\"\n",
+      "ltr_2 = \" \"\n",
+      "ltr_3 = \"i\"\n",
+      "ltr_4 = \"s\"\n",
+      "ltr_5 = \"g\"\n",
+      "ltr_6 = \"r\"\n",
+      "ltr_7 = \"e\"\n",
+      "ltr_8 = \"a\"\n",
+      "ltr_9 = \"t\"\n",
+      "ltr_10 = \"!\"\n",
+      "\n",
+      "print \"%c%c%c%c%c%c%c%c%c%c%c\"%(ltr_1,ltr_2,ltr_3,ltr_4,ltr_2,ltr_5,ltr_6,ltr_7,ltr_8,ltr_9,ltr_10)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "C is great!\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file