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diff --git a/Fundamental_of_Computing_and_Programming_in_C/Chapter07.ipynb b/Fundamental_of_Computing_and_Programming_in_C/Chapter07.ipynb
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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:59d989e4d68b99137fb5255fe771e42a62c5ce35100304584930ea0c003ea2ac"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 07 : User Defined Functions"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 1, page no.5.49"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to demonstrate Local and Global Declaration \n",
+      "\n",
+      "#variable declaration globally\n",
+      "i=0                \n",
+      "print \"Value of i in main\", i\n",
+      "\n",
+      " #define function\n",
+      "def f1():        \n",
+      "    k=0\n",
+      "    i=50\n",
+      "    print \"Value of i after function call\",i\n",
+      "    \n",
+      "#Function Call\n",
+      "f1()             \n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Value of i in main 0\n",
+        "Value of i after function call 50\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 2, page no: 5.50"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to demonstrate usage of local and global variable\n",
+      "\n",
+      "for i in range(0,3):\n",
+      "    print \"Value of i is:\", i\n",
+      "    \n",
+      "i=590\n",
+      "print \"The Value of i is:\", i    \n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Value of i is: 0\n",
+        "Value of i is: 1\n",
+        "Value of i is: 2\n",
+        "The Value of i is: 590\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 3, Page no.5.52"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to call function without parameters\n",
+      "def message():\n",
+      "    print \"Main Message\"\n",
+      "    \n",
+      "print \"Function Message\"\n",
+      "\n",
+      "message()\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Function Message\n",
+        "Main Message\n"
+       ]
+      }
+     ],
+     "prompt_number": 24
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 4, Page No.5.52"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to call function with parameter\n",
+      "\n",
+      "#Defining function\n",
+      "def add(x,y):\n",
+      "    z=0\n",
+      "    z=x+y\n",
+      "    return z\n",
+      "\n",
+      "k=add(10,20)\n",
+      "\n",
+      "#Result\n",
+      "print \"The Value of k is \", k"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The Value of k is  30\n"
+       ]
+      }
+     ],
+     "prompt_number": 25
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 5, page no.5.53"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to write prototype of the function\n",
+      "\n",
+      "k=0\n",
+      "\n",
+      "#Defining in function\n",
+      "def f1(k):\n",
+      "    k=k+100\n",
+      "    return k\n",
+      "\n",
+      "#Result\n",
+      "print \"The value of i before call: \", k\n",
+      "\n",
+      "print \"The Value of i after call: \",(f1(k))\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of i before call:  0\n",
+        "The Value of i after call:  100\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example: 6, page no. 5.54"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Program to write prototype definition in main function\n",
+      "\n",
+      "def fun(k):\n",
+      "    k=k+10\n",
+      "    return k\n",
+      "\n",
+      "i=0\n",
+      "\n",
+      "#Result\n",
+      "print  \"The i value before call %d\\n\"%(i)\n",
+      "print \"The i value after call %d\\n\"%fun(i)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The i value before call 0\n",
+        "\n",
+        "The i value after call 10\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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