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+//clear//
+//Caption:Program to plot the voltage and current through a resistor
+//Example11.12
+//page 386
+clear;
+close;
+clc;
+t1 = 0:0.1:2;
+t2 = 2:0.1:4;
+t3 = 4:0.1:6;
+t4 = 6:0.1:8;
+VR=[40*ones(1,length(t1)),-20*ones(1,length(t2)),10*ones(1,length(t3)),-5*ones(1,length(t4))];
+IR =[-1.2*ones(1,length(t1)),0.6*ones(1,length(t2)),-0.3*ones(1,length(t3)),0.15*ones(1,length(t4))];
+subplot(2,1,1)
+a=gca();
+a.x_location = "origin";
+a.y_location = "origin";
+a.data_bounds = [0,-100;10,100];
+plot2d([t1,t2,t3,t4],VR,5)
+xlabel('                                                          t')
+ylabel('                      VR')
+title('Resistor Voltage as a function of time')
+subplot(2,1,2)
+a=gca();
+a.x_location = "origin";
+a.y_location = "origin";
+a.data_bounds = [0,-1.4;10,1.4];
+plot2d([t1,t2,t3,t4],IR,5)
+xlabel('                                                          t')
+ylabel('                      IR')
+title('Current through Resistor as a function of time')