MATLAB: How to get fsolve return number of iterations

fsolveiterationsoutput

Hi all,
Yet another fsolve question. I am trying to compare now various root finding functions I have as well as fsolve.
In the help file it shows this;
[x,fval,exitflag,output] = fsolve(fun,x0,options)
and this
output.funcCount
so I would like to have this;
[root,output]  = fsolve(myfun,x0,options);
count = output.iterations
i receive this;
Struct contents reference from a non-struct array object.
Error in zerotest (line 57)
    output.iterations
What I am missing?
Thanks a lot.

Best Answer

Okay. So it turns out it needs this;
   [x,fval,exitflag,output] = fsolve(fun,x0,options)
   output.iterations
you have to return fval and exitflag even if you dont use them.
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