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+//CHAPTER 2- STEADY-STATE ANALYSIS OF SINGLE-PHASE A.C. CIRCUIT
+//Example 53 Read Example 52 of the Text Book
+
+disp("CHAPTER 2");
+disp("EXAMPLE 53");
+
+//VARIABLE INITIALIZATION
+v=230;                         //in Volts
+angle_v=30;                    //in degrees
+I1=20;                         //in Amperes
+angle_I1=60;                   //in degrees
+I2=40;                         //in Amperes
+angle_I2=-30;                  //in degrees
+
+//SOLUTION
+//function to convert from polar form to rectangular form
+function [x,y]=pol2rect(mag,angle);
+x=mag*cos(angle*(%pi/180));    //to convert the angle from degrees to radians
+y=mag*sin(angle*(%pi/180));
+endfunction;
+[x1,y1]=pol2rect(I1,angle_I1);
+[x2,y2]=pol2rect(I2,angle_I2);
+X=x1+x2;
+Y=y1+y2;
+
+//function to convert from rectangular form to polar form
+function [I,angle]=rect2pol(x,y);
+I=sqrt((x^2)+(y^2));           
+angle=atan(y/x)*(180/%pi);     //to convert the angle from radians to degrees
+endfunction;
+[I,angle]=rect2pol(X,Y);
+
+//solution (i)
+z=v/I;
+angle_z=angle_v-angle;
+disp(sprintf("(i) The total impedance of the circuit is %f Ω, %f degrees",z,angle_z));
+
+//solution (ii)
+//disp(sprintf("The value of I is %f and angle is %f",I, angle_z));
+pf=cos(angle_z*(%pi/180));
+p=v*I*pf;
+disp(sprintf("(ii) The power taken is %f W",p));
+//END