Error in fsolve

Running your example function for fsolve I get the following error:

Not enough input arguments.

Error in validateFinDiffRelStep (line 10)
value = optimget(options,'FinDiffRelStep',defaultopt,optimgetFlag);

Error in mpfsolve

Error in mp/fsolve (line 5717)
[varargout{1:nargout}] = mpfsolve(varargin{:});

Error in test_fsolve (line 7)
[x,fval,exitflag,output] = fsolve(@myfun,x0,options)

test_fsolve is directly copied from your documentation:

function test_fsolvex0 = mp([-5; -5]);

options = optimset('Display','iter', 'TolFun', mp('eps'),... 'TolX', mp('eps'),... 'Algorithm','levenberg-marquardt'); [x,fval,exitflag,output] = fsolve(@myfun,x0,options) 

function F = myfun(x) 

F = [2*x(1) - x(2) - exp(-x(1)); -x(1) + 2*x(2) - exp(-x(2))]; 

end

end

My matlab version is 2023b version 8.