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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 14: Operational Amplifiers"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.1: Calculate_voltage_gain_and_input_and_output_resistance.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Calculate voltage gain and input and output resistance\n",
+"clear;\n",
+"clc;\n",
+"//soltion\n",
+"//given\n",
+"\n",
+"R1=20*10^3;//ohm\n",
+"Rf=2000*10^3;//ohm\n",
+"Acl=-Rf/R1;\n",
+"Ricl=R1;\n",
+"Ro=0;\n",
+"printf('The voltage gain= %.0f\n',Acl);\n",
+"printf('The input resistance =%.0f kΩ\n',R1/1000);\n",
+"printf('The output resistance =%.0f Ω\n',Ro);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.2: Find_the_output_voltage.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Find the output voltage\n",
+"clear;\n",
+"clc;\n",
+"//soltion\n",
+"//given\n",
+"\n",
+"R1=20*10^3;//ohm\n",
+"Rf=2000*10^3;//ohm\n",
+"v1=4;//V\n",
+"v2=3.8;//V\n",
+"vo=v2*(1+Rf/R1)-(Rf/R1)*v1;\n",
+"printf('The output voltage= %.1f V',vo);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.4: Design_an_adder_circuit_using_an_op_amp.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Design an adder circuit using an op amp\n",
+"clear;\n",
+"clc;\n",
+"//soltion\n",
+"//given\n",
+"\n",
+"//Vo=-(V1+10*V2+100*V3)\n",
+"Rf=100*10^3;//ohm\n",
+"C1=1;         //coefficient of V1\n",
+"C2=10;         //coefficient of V2\n",
+"C3=100;         //coefficient of V3\n",
+"R1=Rf/C1;\n",
+"R2=Rf/C2;\n",
+"R3=Rf/C3;\n",
+"printf('R1 = %.0f kΩ\n',R1/1000);\n",
+"printf('R2 = %.0f kΩ\n',R2/1000);\n",
+"printf('R3 = %.0f kΩ\n',R3/1000);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.5: Calculate_CMRR_in_dB.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Calculate CMRR in dB\n",
+"clear;\n",
+"clc;\n",
+"//soltion\n",
+"//given\n",
+"\n",
+"Ad=100;          //differential mode gain\n",
+"Ac=0.01;         //common mode gain\n",
+"CMRR=20*log10(Ad/Ac);\n",
+"printf('The CMRR in dB %.0f dB',CMRR);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 14.6: Calculate_the_output_voltage.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"//Calculate the output voltage\n",
+"clear;\n",
+"clc;\n",
+"//soltion\n",
+"//given\n",
+"\n",
+"Ad=2000;          //differential mode gain\n",
+"CMRR=10000;\n",
+"V1=10^-3;//V\n",
+"V2=0.9*10^-3;//V\n",
+"Vd=V1-V2;\n",
+"Vc=(V1+V2)/2;\n",
+"Vo=Ad*Vd*(1+Vc/(CMRR*Vd));\n",
+"printf('The output voltage is %.2f mV',Vo*1000);"
+   ]
+   }
+],
+"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
+}