How to insert a circle above a letter in MATLAB text

Question

in LaTeX, it would be something like

\overset{\circ}{K}

which will result in the letter K with a circle above it in the center (not on the right as a superscript). However, my question is, how can I do the same in MATLAB text, e.g. in figures' titles or labels?

Answer 1

Is this close enough?

figure(); title('$\mathop K\limits^ \circ$','interpreter','latex');