1 files changed, 135 insertions, 0 deletions
diff --git a/_Programming_With_C/chapter3.ipynb b/_Programming_With_C/chapter3.ipynb
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+++ b/_Programming_With_C/chapter3.ipynb
@@ -0,0 +1,135 @@
+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h1>Chapter 3: Operators and Expressions<h1>"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 3.13, Page number: 3.9 <h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#illustrates the size of respective data type (in C)\n",
+      "\n",
+      "import ctypes as ct\n",
+      "\n",
+      "print \"interger  : \",ct.sizeof(ct.c_int())\n",
+      "print \"float     : \",ct.sizeof(ct.c_float())\n",
+      "print \"double    : \",ct.sizeof(ct.c_double())\n",
+      "print \"character : \",ct.sizeof(ct.c_char())\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "interger  :  4\n",
+        "float     :  4\n",
+        "double    :  8\n",
+        "character :  1\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 3.30, Page number: 3.19<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# to calculate the roots of quadratic equation\n",
+      "\n",
+      "\n",
+      "print \"for the equation ax^2+bx+c \\n\"\n",
+      "\n",
+      "a=2\n",
+      "b=6\n",
+      "c=3\n",
+      "\n",
+      "root=(b*b-4*a*c)**0.5\n",
+      "x1=(-b + root)/(2*a)\n",
+      "x2=(-b - root)/(2*a)\n",
+      "\n",
+      "print \"x1=\",x1\n",
+      "print \"x2=\",x2\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "for the equation ax^2+bx+c \n",
+        "\n",
+        "x1= -0.633974596216\n",
+        "x2= -2.36602540378\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 3.31, Page number: 3.20<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# to convert a lower case char to upper case\n",
+      "\n",
+      "\n",
+      "\n",
+      "lower=\"l\"\n",
+      "upper=lower.upper()\n",
+      "print upper\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "L\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file