Understanding linear systems

Objective: clear all close all clc method=1; % USE 1 for jacobi , 2 for gauss-sidel,3 for SOR,4,5,6 for jacobi,gauss,sor for changed diagonal matrix A = [5 1 2; -3 9 4; 1 2 -7]; % Matrix A is given. D = diag(diag(A)); % Decomposing in diagonal matrix . L = tril(A) - D; % Decomposing in lower triangular matrix . U = triu(A) - D; %…