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A = [ 2 3 1 1 0 0 0 5
4 1 2 0 1 0 0 11
3 4 2 0 0 1 0 8
5 4 3 0 0 0 -1 0 ]
The result of this operation is:
A = {
[ 2 , 3 , 1 , 1 , 0 , 0 , 0 , 5 ]
[ 4 , 1 , 2 , 0 , 1 , 0 , 0 , 11 ]
[ 3 , 4 , 2 , 0 , 0 , 1 , 0 , 8 ]
[ 5 , 4 , 3 , 0 , 0 , 0 , -1 , 0 ]
}
r = 1;
c = 1;
B = Pivot(A, r, c)
The result of this operation is:
B = {
[ 1 , 1.5 , 0.5 , 0.5 , 0 , 0 , 0 , 2.5 ]
[ 0 , -5 , 0 , -2 , 1 , 0 , 0 , 1 ]
[ 0 , -0.5 , 0.5 , -1.5 , 0 , 1 , 0 , 0.5 ]
[ 0 , -3.5 , 0.5 , -2.5 , 0 , 0 , -1 , -12.5 ]
}
r = 3;
c = 3;
C = Pivot(B, r, c);
The result of this operation is:
C = {
[ 1 , 2 , 0 , 2 , 0 , -1 , 0 , 2 ]
[ 0 , -5 , 0 , -2 , 1 , 0 , 0 , 1 ]
[ 0 , -1 , 1 , -3 , 0 , 2 , 0 , 1 ]
[ 0 , -3 , 0 , -1 , 0 , -1 , -1 , -13 ]
}