Iterative solution for 6x6 system

Hello,

I'm trying to solve a system of equations. There are 6 equations 6 variables but one variable is dependant to two variables. Hence, I try to give an initial guess of '0' to a variable. Then I try to iteratively solve the system until the specified tolerance is reached. But when code ran I get only one value for the asked variable instead of recording all iterations.

(Constants and intermediate variables written above of this code):

for i=1:629 if s14dot(i)<0 f14(i)=200; else f14(i)=-100; end

    for j=1:1:100

    f34prime=f34;

    A= [1 0 -mu -mu 0 0;
        0 1 1 -1 0 0;
        0 0 d-s14(i)-mu*(c/2) -(d+a-s14(i))+mu*(c/2) 1 0;
        -a3*sin(theta13(i)) a3*cos(theta13(i)) 0 0 -1 0;
        a2*sin(theta12(i)) -a2*cos(theta12(i)) 0 0 0 1;
        0 0 0 0 1 0] ;

    C=[-f14(i); 0; -(b+c/2)*f14(i); 0; 0; r34*mu*f34*sign(theta13dot(i))];

    B=inv(A)*C;

       f34x=B(1);
       f34y=B(2);
       g14prime=B(3);
       g14dprime=B(4);
       m34=B(5);
       T=B(6);

    f34=sqrt(f34x^2+f34y^2);

     if f34prime==0
        elseif (f34-f34prime)/f34prime<0.0001
            break
    end
end

Answer 1

[Torsten]

My guess is that you want to insert

F34(i)=f34

before the "end" of the loop over i:

     ...
     if f34prime==0
     elseif (f34-f34prime)/f34prime<0.0001
         break
     end
     F34(i)=f34
end

Best wishes

Torsten.