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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 14: WAVEGUIDES"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.2_1: example_1.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"//page no 524\n",
+"//prob no. 14.2.1\n",
+"// A rectangular waveguide has a broad wall dimension as a=0.900 in. Therefore\n",
+"a=2.286;//in cm\n",
+"wl_c=2*a*10^-2;//in m\n",
+"c=3*10^8;\n",
+"wl=c/10^10;//in m\n",
+"if(wl_c >wl)\n",
+"    disp('i)TE10 wave will propogate');\n",
+"else\n",
+"    disp('i)TE10 wave will not propogate');\n",
+"end\n",
+"//determination of gide wl\n",
+"wl_g=wl/(sqrt(1-(wl/wl_c)^2));\n",
+"disp('cm',wl_g*10^2,'Guide wavelength is');\n",
+"//determination of phase velocity\n",
+"vp=c*wl_g/wl;\n",
+"disp('m/s',vp,'Phase velocity is');\n",
+"//determination of group velocity\n",
+"vg=c*wl/wl_g;\n",
+"disp('m/s',vg,'Group velocity is');"
+   ]
+   }
+],
+"metadata": {
+		  "kernelspec": {
+		   "display_name": "Scilab",
+		   "language": "scilab",
+		   "name": "scilab"
+		  },
+		  "language_info": {
+		   "file_extension": ".sce",
+		   "help_links": [
+			{
+			 "text": "MetaKernel Magics",
+			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+			}
+		   ],
+		   "mimetype": "text/x-octave",
+		   "name": "scilab",
+		   "version": "0.7.1"
+		  }
+		 },
+		 "nbformat": 4,
+		 "nbformat_minor": 0
+}