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+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 14 : Stability and Oscillators"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 14.1a, Page No 529"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#initialisation of variables\n",
+      "s1 = -46.2*(10**5)\n",
+      "s2 = -45.9*(10**6)\n",
+      "s3 = -11.4*(10**8)\n",
+      "s4 = -30.4*(10**8)\n",
+      "\n",
+      "#Calculations\n",
+      "#Zeros\n",
+      "s5 = 16.65*(10**9)\n",
+      "s6 = 15.4*(10**8)\n",
+      "s7 = -22.55*(10**8)\n",
+      "s = 6.28*(10**6)\n",
+      "B = 0.040\n",
+      "Ai = 410.0           #Gain\n",
+      "\n",
+      "n = s2/s1\n",
+      "print(\"The value of n= %.2f \" %n)\n",
+      "Q = (n*(1+(B*Ai)))**0.5/(n+1)\n",
+      "print(\"The value of Q = %.2f \" %Q)\n",
+      "k = 1.0/(2*Q)\n",
+      "print(\"The value of K = %.2f \" %K)\n",
+      "\n",
+      "s1f = s1*((n+1)/2)*(1-%i*((4*Q*Q)-1)**0.5)\n",
+      "\n",
+      "#Results\n",
+      "print(\"The first pole is = %.2f \" %s1f)\n",
+      "s2f = s1*((n+1)/2)*(1+%i*((4*Q*Q)-1)**0.5)\n",
+      "print(\"The second pole is = %.2f \" %s2f)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "ename": "SyntaxError",
+       "evalue": "invalid syntax (<ipython-input-1-fb03b3d691c3>, line 24)",
+       "output_type": "pyerr",
+       "traceback": [
+        "\u001b[1;36m  File \u001b[1;32m\"<ipython-input-1-fb03b3d691c3>\"\u001b[1;36m, line \u001b[1;32m24\u001b[0m\n\u001b[1;33m    s1f = s1*((n+1)/2)*(1-%i*((4*Q*Q)-1)**0.5)\u001b[0m\n\u001b[1;37m                          ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 14.2a, Page No 529"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#initialisation of variables\n",
+      "Q=1.20\n",
+      "w1=45.9\n",
+      "w2=4.62\n",
+      "k=0.417\n",
+      "w0=Q*(w1+w2)\n",
+      "\n",
+      "#Calculations\n",
+      "fpeak=(w0/6.28)*math.sqrt(1.0-(2.0*(k**2.0)))\n",
+      "m=1.0/(2.0*k*(math.sqrt(1-(2.0*(k**2.0)))))\n",
+      "m2=20*math.log(m,10)\n",
+      "\n",
+      "#Results\n",
+      "print(\"The value of fpeak = %.2f MHZ\" %fpeak)\n",
+      "print(\"The value of overshoot = %.2f dB\" %m)\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of fpeak = 7.80 MHZ\n",
+        "The value of overshoot = 1.48 dB\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file