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+//CHAPTER 1- D.C. CIRCUIT ANALYSIS AND NETWORK THEOREMS 
+//Example 40
+
+disp("CHAPTER 1");
+disp("EXAMPLE 40");
+
+//VARIABLE INITIALIZATION
+v1=20;                        //in Volts
+v2=10;                        //in Volts
+r1=5;                         //top resistance in Ohms
+r2=10;                        //bottom resistance in Ohms
+r3=5;                         //in Ohms
+r4=5;                         //in Ohms
+r5=10;                        //in Ohms
+
+//SOLUTION
+//(5)I1+(10)I3+(-10)I4=20............eq (1)
+//(0)I1+(10)I3+(10)I4=-50............eq (2)
+//(5)I1+(20)I3+(0)I4=-30.............eq (3) (eq(1) + eq(2))
+//Since the determinant of matrix A is 0, hence, the set of these equations cannot be solved by matrix method
+//So, solving them directly,
+
+I3=-15/25;
+I1=-3-(3/5);
+I4=-5-(-3/5);
+I=I1+3+5;
+disp("The currents (in Amperes) flowing in different branches are:"); 
+disp(I1);
+disp(I3);
+disp(I4);
+disp(sprintf("The total current is %f A",I)); 
+
+//END