{
 "metadata": {
  "name": "Chapter_18"
 }, 
 "nbformat": 2, 
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown", 
     "source": [
      "<h1>Chapter 18: Programmable Analog Arrays<h1>"
     ]
    }, 
    {
     "cell_type": "markdown", 
     "source": [
      "<h3>Example 18.1, Page Number: 588<h3>"
     ]
    }, 
    {
     "cell_type": "code", 
     "collapsed": false, 
     "input": [
      "", 
      "import math", 
      "#Variable declaration", 
      "C=1000*10**-12;    #Switche capacitor value in farads", 
      "R=1000;            #resistance in ohms", 
      "", 
      "#calculation", 
      "T=R*C;    #Time period", 
      "f=1/T;    #Frequency at which switch should operate", 
      "f=math.ceil(f)", 
      "#Result", 
      "print('Frequency at which each switch should operate(in hertz) is \\n %d' %f)", 
      "print('Duty cycle should be 50%')"
     ], 
     "language": "python", 
     "outputs": [
      {
       "output_type": "stream", 
       "stream": "stdout", 
       "text": [
        "Frequency at which each switch should operate(in hertz) is ", 
        " 1000000", 
        "Duty cycle should be 50%"
       ]
      }
     ], 
     "prompt_number": 1
    }
   ]
  }
 ]
}