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+//Example 14.1
+clc;
+
+//Design a differentiator
+fa=800;            //Given Frequency in Hz
+C1=0.1*10^-6;      //Assumed value of capacitor
+
+//Feedback resistence
+Rf=invr(2*%pi*fa*C1);
+//Assume a std value of feedback resistence
+Rf=2.2*10^3;
+
+//Gain limiting frequency; fb=20fa
+fb=20*fa;
+R1=invr(2*%pi*fb*C1);
+//Assume a std value of input resistence
+R1=100;
+
+//Feedback Capacitance
+Cf=R1*C1/Rf;
+//Assume a std value of feedback Capacitance
+Cf=4.7*10^-9;
+
+printf('\nAssumed value of Input capacitor C1 = %.2f uF \n',C1*10^6)
+printf('\nValue of Input Resistor R1 = %.2f ohm \n',R1)
+printf('\nValue of Feedback capacitor Cf = %.2f nF \n',Cf*10^9)
+printf('\nValue of Feedback Resistor Rf = %.2f k ohm \n',Rf/1000)
+
+Vp=2;        //Peak voltage in V
+w=2*%pi*fa;
+T=2*w;
+t=0:50:T;
+Vin=Vp*sin(t/2);
+a=gca();
+subplot(2,1,1);
+plot(Vin);
+Vpo=Rf*C1*2*2*%pi*800;
+Vo=-Vpo*cos(t/2);
+subplot(2,1,2);
+plot(Vo);
+\ No newline at end of file