Solve the given system of equations using the Gauss-Jordan elimination method with MATLAB.

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Sadgine
Sadgine on 22 Feb 2023
Answered: KSSV on 22 Feb 2023
How can i solve this 4x4 equations using the Gauss-Jordan elimination with MATLAB/octave?

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Answers (1)

KSSV
KSSV on 22 Feb 2023
Ran in:
Read about rref
A = [0.1 -2.5 1.2 -0.75 108 ;
2.4 1.5 -1.8 0.25 -81;
0.4 -3.2 1.6 -1.4 148.8;
1.6 1.2 -3.2 0.6 -143.2] ;
[R,p] = rref(A) ;
R(:,end)
ans = 4×1
10 -20 40 -12
% Check
A(:,1:4)*R(:,end)
ans = 4×1
108.0000 -81.0000 148.8000 -143.2000

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