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+//CHAPTER 1- D.C. CIRCUIT ANALYSIS AND NETWORK THEOREMS 
+//Example 33
+
+disp("CHAPTER 1");
+disp("EXAMPLE 33");
+
+//VARIABLE INITIALIZATION
+I=10;                           //current source in Amperes
+v=10;                           //voltage source in Volts
+r1=4;                           //top resistance in Ohms
+r1=4;                           //right resistance in Ohms
+r3=4;                           //bottom resistance in Ohms
+r4=6;                           //left resistance in Ohms
+r5=1;                           //in Ohms
+
+//SOLUTION
+//(17)v1+(-12)v2=150.......eq (1)
+//(-4)v1+(6)v2=10..........eq (2)
+//solving the equations by matrix method
+A=[17 -12;-4 6];
+b=[150;10];
+x=inv(A)*b;
+v1=x(1,:);                       //to access the 1st element of 2X1 matrix
+v2=x(2,:);                       //to access the 1st element of 2X1 matrix
+if(v1>v2) then
+I=(v1-v2)/r5;
+disp(sprintf("By Nodal analysis, the current through 1Ω resistor is %f A",I));
+else
+I=(v2-v1)/r5;
+disp(sprintf("By Nodal analysis, the current through 1Ω resistor is %f A",I));
+end;
+
+//END