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clc
disp("Problem 4.2")
printf("\n")
//From figure 4.2
disp("The reduced incidence matrix is ")
A=[-1 1 0 0 1 0
0 -1 1 0 0 1
0 0 0 1 -1 -1]
disp(A,"A=")
//Here node D is chosen as reference
//Let i=[ i1
// i2
// i3
// i4
// i5
// i6 ]
//Multiplying [A] with [i] we get the KCL equations
disp("KCL equations are")
disp("-i1+i2+i5=0")
disp("-i2+i3+i6=0")
disp("i4-i5-i6=0")
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