MATLAB: Tilde character underneath a letter in Matlab charts

characterinterpreterlatextildeunder letter

I am trying to put a tilde underneath a letter in my ylabel on a chart in Matlab. I am using interpreter and latex to do it and i know the way to do it in Latex is \utilde. But Matlab does not seem to recognise this command, it does recognise \tilde, however.
Has anyone tried to put a character underneath a letter in Matlab for chart plots? How can I do this?!
Thanks!
Olivia

Best Answer

The following code may be able to help you.
ylabel('$\stackrel{a}{\tilde{}}$','Interpreter','latex');