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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:023bb2358c5a7a6740b1b9a08290e11f954e790555a353817bbe84615e4679e6"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "CHAPTER 9: VALVE DIAGRAMS AND VALVE GEARS"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.5 Page 150"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initialisation of variable\n",
+      "from math import pi,sqrt,acos,asin,atan,cos,sin,tan\n",
+      "p=20#in\n",
+      "l=100#in\n",
+      "r=120#r.p.m\n",
+      "v=3.5#in\n",
+      "l2=1#in\n",
+      "l3=1/8#in\n",
+      "v1=1.44#omega in/sec\n",
+      "\n",
+      "#CALCULATIONS\n",
+      "V=p*(1.06/1.166)#omega in./sec\n",
+      "R=(V/v1)#omega in/sec\n",
+      "\n",
+      "#RESULTS\n",
+      "print\"The ratio of velocity of the piston to the velocity is\",round(R,3),\"Omega in/sec\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The ratio of velocity of the piston to the velocity is 12.626 Omega in/sec\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.7 Page 151"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initialisation of variable\n",
+      "from math import pi,sqrt,acos,asin,atan,cos,sin,tan\n",
+      "v=0.6#in\n",
+      "m=1.0#in\n",
+      "t=0.75#in\n",
+      "p=4#in\n",
+      "\n",
+      "#CALCULATIONS\n",
+      "D=t/m#in\n",
+      "A=(p*m/D)#in\n",
+      "\n",
+      "#RESULTS\n",
+      "print\"the travel and laps of the value is\",round(A,3),\"in\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "the travel and laps of the value is 5.333 in\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.10 Page 154"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initialisation of variable\n",
+      "from math import pi,sqrt,acos,asin,atan,cos,sin,tan\n",
+      "l=1.5#in\n",
+      "p=4.0#in\n",
+      "v=0.98#in\n",
+      "\n",
+      "#CALCULATIONS\n",
+      "T=(l*p/v)#in\n",
+      "\n",
+      "#RESULTS\n",
+      "print\"the particulars of a value and it eccentric is\",round(T,3),\"in\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "the particulars of a value and it eccentric is 6.122 in\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.12 Page 156"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initialisation of variable\n",
+      "from math import pi,sqrt,acos,asin,atan,cos,sin,tan\n",
+      "p=1/10#in\n",
+      "v1=3/4#in\n",
+      "v2=3/5#in\n",
+      "m=1*1/2#in\n",
+      "l=4#cranks\n",
+      "a1=1.25#in\n",
+      "a2=0.7#in\n",
+      "\n",
+      "#CALCULATIONS\n",
+      "C=a1/a2#in\n",
+      "A=l*a1/a2#in\n",
+      "S=(A/2-a1)#in\n",
+      "\n",
+      "#RESULTS\n",
+      "print\"the travel of the value is\",round(S,3),\"in\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "the travel of the value is 2.321 in\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.17 Page 161"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initialisation of variable\n",
+      "from math import pi,sqrt,acos,asin,atan,cos,sin,tan\n",
+      "v=3*1/2#in\n",
+      "a=30#degree\n",
+      "l=0.8#in\n",
+      "v1=0.2#in\n",
+      "L=0.13#in\n",
+      "m=1.075#in\n",
+      "d=0.58#in\n",
+      "p=1.875#in\n",
+      "\n",
+      "#CALCULATIONS\n",
+      "V=(p-d)#in\n",
+      "P=V+1.25#in\n",
+      "\n",
+      "#RESULTS\n",
+      "print\"the main value and the maximum opening to steam is\",round(P,3),\"in\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "the main value and the maximum opening to steam is 2.545 in\n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file