how to perform fsolve within for loop

how I can perform fsolve inside for loop if I have the following function:

function Q = Om2Afun(x)
global  L2_2 LA Th2_2 ThA_2 v
OmA = x(1);
Om2 = x(2);
Q(1) = real(L2_2.*exp(1i.*Th2_2)*1i.*Om2 +LA.*exp(1i.*ThA_2).*1i.*OmA -v*exp(1i*ThA_2));
Q(2) = imag(L2_2.*exp(1i.*Th2_2)*1i.*Om2 +LA.*exp(1i.*ThA_2).*1i.*OmA -v*exp(1i*ThA_2));

I wrote fsolve within loop like this but I keep getting errors:

 for t=0:10
    
LA(t+1) = 1.15-(v*t);
 Z = L1_2*exp(1i*deg2rad(Th1_2));
 Zc = conj(Z);
 Ka = -LA.*Zc ; Kb = Z*Zc + LA.^2 -L2_2^2; Kc = -LA.*Z;
 R_1 = (-Kb + sqrt(Kb.^2 - 4.*Ka.*Kc))./(2*Ka);
 F_1 =(Z-(LA.*R_1))/L2_2;
ThA_1= rad2deg(angle(R_1));
Th2_1= rad2deg(angle(F_1));

global  L2_2 LA Th2_2 ThA_2 v
x0= [0 0];
xSol(t+1, :)= fsolve(@Om2Afun , x0);
OmA(t+1)= xSol (1, t+1)
Om2(t+1)= xSol (2,t+1)
 end

note that L2_2 and v are constant values and Th2_2 , ThA_2 and LA are changing in every loop iteration. so I wanna find the solution for Om2 and OmA in every instant to make a vector for all values.

[Walter Roberson]

You are not initializing all of your global variables, so your expressions are ending up empty.

http://www.mathworks.com/help/matlab/math/parameterizing-functions.html

[Aamna Alshehhi]

I did not get it. how I am supposed to initalize my global variable?

all parameters are already in the worksapce.

actually when I use the function without loop I get the solution but when I added it to the loop I end up with error saying :

"Unable to perform assignment because the indices on the left side are not compatible with the size of the right side."

[Walter Roberson]

Where do you assign a value to L2_2 ?

You should get rid of all of the global variables and follow the guidelines about parameterizing functions that I linked to.