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+clc; clear; close;
+
+Wp=400;//in nanometer
+Vsat=8*(10^6);//in cm/s
+Vdd=1.8;//in volts
+Vtp=0.5;//in volts
+Ep=4.8;//in volts
+Ln=2*(10^(-5));//in cm
+un=270;//in cm^2/V.s
+Vol=0.065;//in volts
+En=1.2;//in volts
+Vtn=0.5;//in volts
+k=(Vsat*((Vdd-Vtp)^2)*Ln*(1+(Vol/En)))/(un*(Vol*(Vdd-Vtn)-(Vol^2)/2)*(Vdd-Vtp+Ep));
+Wn=k*Wp;
+disp(k,'WN/WP=');//answers vary due to round off error
+disp(Wn,'Wn(in nanometers)=');//answers vary due to round off error