MATLAB: How not to display error message from fzero

Question

I've defined the function:

function zeros = findzeros(myf,n_points,min,max)
    x = ones(n_points,1);
    starting_points=linspace(min,max,n_points);
%     warning('off')
    for i=1:n_points
        try
            x(i) = fzero(myf, starting_points(i));
        catch
            fprintf('No root found');
        end
    end
    x = x(x>=min);
    zeros = [x(diff(x)>1e-12); x(1)];
end

In the while looping if often happens that there's an error. I tried using trycatch as suggested elsewhere, but it still results in error messages such as:

Exiting fzero: aborting search for an interval containing a sign change
    because no sign change is detected during search.
Function may not have a root.

And there's no messa 'No root found' printed. How can I fix this?

Answer 1

function zeros = findzeros(myf, n_points, xmin, xmax)
    x = ones(n_points,1);
    starting_points = linspace(xmin, xmax, n_points);
    opts = optimset('display', 'none');
    for i=1:n_points
       x(i) = fzero(myf, starting_points(i), opts);
    end
    x = x(x >= xmin);
    zeros = [x(diff(x)>1e-12); x(1)];
end