Solving nonlinear systems of equations instead fsolve method

Hi everybody, I'm trying to use fsolve to solve my nonlinear equation. but there is a problem that when I change some other parameter like

p=[0,0,0,0,0], the output (eval) will goes to up. The goal is minimising the 'eval', to be zero.

what is your suggestion to find the problem? what other solver I can use? instead fsolve method.

I insert the code here.

f = load('C:f.txt');
t= load('C:t.txt');
L0 = load('C:L0.txt');

centers = [0,20,30;
            0,20,-30];

p = [0,0,0,-0.001,0];
load = [0,-100,0,0,0,0];

compute_resultant(p,f,t,L0,centers,load)

% numerical solution  

f = @(p)compute_resultant(p,f,t,L0,centers,load);
    
[p,eval] = fsolve(f,p)

thanks

[Torsten]

We can't tell since we don't know your system of equations (and even if we knew it, maybe we still didn't know).

Maybe you have bad initial guesses for the parameters, maybe your system has no solution.

You could try "MultiStart".