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+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 5: Sequential Circuits, Flip flops & Multivibrators"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 1, Page 183\n"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "R=10*10**3;#external resistance ohm#\n",
+      "C=0.1*10**-6;#timing capacitor Farad#\n",
+      "\n",
+      "#Calculations\n",
+      "T=1.1*R*C;#time for which output remains high in monostable multivibrator using IC 555 timer#\n",
+      "\n",
+      "#Result\n",
+      "print \"Required time=%.1f milli-seconds\"%(T*10**3)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Required time=1.1 milli-seconds\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 2, Page 183"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "Ra=10*10**3  #ohms\n",
+      "Rb=10*10**3  #ohms\n",
+      "C=.001*10**-6 #F\n",
+      "\n",
+      "#Calculations&Results\n",
+      "T1=.693*(Ra+Rb)*C;#charging time constant#\n",
+      "T2=.693*Rb*C;#discharging time constant#\n",
+      "T=T1+T2;#total time#\n",
+      "f=1./T;#frequency#\n",
+      "print 'frequency=%.2f KH'%(f*10**-3);\n",
+      "D=T2/T;#duty cycle#\n",
+      "D=D*100\n",
+      "print 'duty cycle=%.2f percent'%D\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "frequency=48.10 KH\n",
+        "duty cycle=33.33 percent\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3, Page 184"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "Ra=6.8*10**3  #ohms\n",
+      "Rb=3.3*10**3  #ohms\n",
+      "C=.1*10**-6   #F\n",
+      "\n",
+      "#Calculations&Results\n",
+      "T1=.693*(Ra+Rb)*C;#charging time constant#\n",
+      "T2= .693*Rb*C;#discharging time constant#\n",
+      "T=T1+T2;#total time#\n",
+      "f=1/T#frequency#\n",
+      "print 'frequency=%.3f KH'%(f*10**-3)\n",
+      "D=T2/T;#duty cycle#\n",
+      "D=D*100\n",
+      "print 'duty cycle=%.2f percent'%D"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "frequency=1.077 KH\n",
+        "duty cycle=24.63 percent\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file