I am trying to learn how to use fminunc, but it gives the error "Failure in initial objective function evaluation. FMINUNC cannot continue."
Help please?
Note: Updated
for i = 1:modes
params.x0 = [y0 dy0];
params.xp = xspan;
fobj = @(beta)myobj(beta, params);
for j = 1:1000
beta = fminunc(fobj, beta0);
end
end
function [err, T, Y] = myobj(beta)
x0 = params.x0;
xspan = params.xp;
[T,Y] = ode45('ffunc', xspan, x0);
err = abs(Y(end,2) + sqrt(K*L.^2 - beta)*Y(end,1));
end
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