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I need assistance in writing a matlab code for this iterative example
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TRYING TO SOLVE FOR u and finding maximum iterations needed to solve
Q1 = [ 25, 10, 15, 20; 10, 12, 18, 23; 12, 15, 17,19 ];
F1 = [ 6;7;12];
F2 = [ 48;64;72];
iter = 0;
N = 100; % maximum number of iterations
uold = u0;
QA = Q1;
F1 = RF1;
F2 = RFM; % max load capacity
u0 = u1;
dF = 0.2;
[row,col] = size(u);
tol = 0.0001;
syms 'u'
R1 = F2 - F1;
u2 = inv(Q1)*R1;
u3 = u0 + u2;
F3 = F1 + dF;
R2 = F2 - F3; % unbalanced force must be equal to 0 in order to converge
Q2 = F3\u3;
u4 = inv(Q2)*R2;
u5 = u3 + u4;
F4 = F3 + dF;
R3 = F2 - F4;
Q3 = F4\u5;
u6 = inv(Q3)*R3;
u7 = u5 + u6;
F5 = F4 + dF;
R4 = F2 - F5;
Q4 = F5\u7;
u8 = inv(Q4)*R4;
u9 = u7 + u8;
F6 = F5 + dF;
R5 = F3 - F6;
2 comentarios
John D'Errico
el 26 de Nov. de 2021
You do understand that the inverse of a matrix is undefined when the matrix is not square?
Q1 = [ 25, 10, 15, 20; 10, 12, 18, 23; 12, 15, 17,19 ]
size(Q1)
Therefore no number of iterations will suffice, sicne your code will error out almost immediately.
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