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+{
+ "metadata": {
+  "name": "chapter 1.ipynb"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 1:Vectors"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 1.1-1,Page no 8"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Initialisation of Variables\n",
+      "f1=120 #lb\n",
+      "f2=100 #lb\n",
+      "theta=((60*pi)/180) #radians\n",
+      "#Calculations\n",
+      "R=sqrt(120**2+100**2-(2*120*100*cos(theta))) #Applying Thr rule of Cosines\n",
+      "alpha1=(((arcsin(120*sin(theta)/111))*180)/pi) #Applying the Law of Sines\n",
+      "alpha=alpha1+270 #As the vector lies in the fourth Quadrant by obsrevaton\n",
+      "#Results\n",
+      "print'The Resultant of The force system is equal to',round(R,3),\"lb\" #lb\n",
+      "print'The Resultant is at',round(alpha,3),\"degrees\" #degrees\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The Resultant of The force system is equal to 111.355 lb\n",
+        "The Resultant is at 339.43 degrees\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 1.2-2,Page no 9"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#Initilization of variables\n",
+      "P=100 #lb\n",
+      "Q=120 #lb\n",
+      "theta=((30*pi)/180) #radians\n",
+      "#Calculations\n",
+      "R_x=Q*cos(theta) #lb\n",
+      "R_y=Q*sin(theta)-P #lb\n",
+      "R=sqrt(R_x**2+R_y**2) #lb Triangle law\n",
+      "Theta_1=((arctan(R_y/R_x))*180)/pi #degrees\n",
+      "Theta_R=360+Theta_1 #degrees\n",
+      "#Result\n",
+      "print'The resultant of the force system is',round(R,3),\"lb\"\n",
+      "print'The resultant is at',round(Theta_R,3),\"degrees\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The resultant of the force system is 111.355 lb\n",
+        "The resultant is at 338.948 degrees\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file