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+// Example 4.9
+clc;
+clear;
+close;
+format('v',6);
+// Given data
+R= 40;// in kΩ
+R= R*10^3;// in Ω
+C= 0.2;// in µF
+C= C*10^-6;// in F
+Vin= 5;// in V
+V1= 3;// in V
+t= 50;// in ms
+Vout= 3;// in V
+t=[0:0.1:50];
+vout= -1/(R*C)*integrate('(Vin-V1)','t',0,t)*10^-3+Vout;//in V
+plot(t,vout);
+title("Sketch of output voltage");
+xlabel("Time in milliseconds");
+ylabel("Output voltage in volts")
+disp("Plot for output voltage shown in figure");
+
+
+
+
+