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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 6: DIGTIAL BASEBAND TRANSMISSION"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 6.25: roll_of_factor.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Caption: roll of factor\n",
+"//Example 6.25\n",
+"//page no 307\n",
+"//Find The roll of factor alpha\n",
+"clc;\n",
+"clear;\n",
+"datarate=0.1*10^6;\n",
+"fB=75000; //bandwidth\n",
+"Tb=1/datarate;\n",
+"alpha=2*fB*Tb-1\n",
+"disp(alpha,'factor alpha = ')"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 6.26: Transmission_bandwidth.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Caption: Transmission bandwidth\n",
+"//Example 6.26\n",
+"//page no 307\n",
+"//Find The Transmission bandwidth\n",
+"clc;\n",
+"clear;\n",
+"q=128;\n",
+"alpha=0.2\n",
+"n=log2(q);\n",
+"fm=2000;\n",
+"Nq=2*fm;\n",
+"fs=1.25*Nq;\n",
+"N=8;\n",
+"total=N*fs;\n",
+"bitrate=7*total;\n",
+"fB=((1+alpha)*bitrate)/2;\n",
+"disp('kHz',fB/1000,'Transmission Bandwidth');"
+   ]
+   }
+],
+"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
+}